Liliales

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Liliales
Temporal range: 120–0  Ma
Lil candidum 01Hab Griechenland Konitsa 04 06 00.jpg
Lilium candidum
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Liliales
Perleb (1826) [1] [2]
Type species
Lilium candidum
L.
Families

Alstroemeriaceae
Campynemataceae
Colchicaceae
Corsiaceae
Liliaceae
Melanthiaceae
Petermanniaceae
Philesiaceae
Ripogonaceae
Smilacaceae

Contents

Synonyms [3]

Liliiflora

Liliales is an order of monocotyledonous flowering plants in the Angiosperm Phylogeny Group and Angiosperm Phylogeny Web system, within the lilioid monocots. This order of necessity includes the family Liliaceae. The APG III system (2009) places this order in the monocot clade. In APG III, the family Luzuriagaceae is combined with the family Alstroemeriaceae and the family Petermanniaceae is recognized. Both the order Lililiales and the family Liliaceae have had a widely disputed history, with the circumscription varying greatly from one taxonomist to another. Previous members of this order, which at one stage included most monocots with conspicuous tepals and lacking starch in the endosperm are now distributed over three orders, Liliales, Dioscoreales and Asparagales, using predominantly molecular phylogenetics. The newly delimited Liliales is monophyletic, with ten families. Well known plants from the order include Lilium (lily), tulip, the North American wildflower Trillium , and greenbrier.

Thus circumscribed, this order consists mostly of herbaceous plants, but lianas and shrubs also occur. They are mostly perennial plants, with food storage organs such as corms or rhizomes. The family Corsiaceae is notable for being heterotrophic.

The order has worldwide distribution. The larger families (with more than 100 species) are roughly confined to the Northern Hemisphere, or are distributed worldwide, centering on the north. On the other hand, the smaller families (with up to 10 species) are confined to the Southern Hemisphere, or sometimes just to Australia or South America. The total number of species in the order is now about 1768.

As with any herbaceous group, the fossil record of the Liliales is rather scarce. There are several species from the Eocene, such as Petermanniopsis anglesaensis or Smilax, but their identification is not definite. Another known fossil is Ripogonum scandens from the Miocene. Due to the scarcity of data, it seems impossible to determine precisely the age and the initial distribution of the order. It is assumed that the Liliales originate from the Lower Cretaceous, over 100 million years ago. Fossil aquatic plants from the Cretaceous of northeastern Brazil and a new terrestrial species placed in the new genus Cratosmilax suggest that the first species have appeared around 120 million years ago when the continents formed Pangea, before dispersing as Asia, Africa and America. [4] The initial diversification to the current families took place between 82 and 48 million years ago. [5] The order consists of 10 families, 67 genera and about 1,768 species.

Description

The Liliales are a diverse order of predominantly perennial erect or twining herbaceous and climbing plants. Climbers, such as the herbaceous Gloriosa (Colchicaceae) and Bomarea (Alstroemeriaceae), are common in the Americas in temperate and tropical zones, while most species of the subtropical and tropical genus Smilax (Smilacaceae) are herbaceous or woody climbers and comprise much of the vegetation within the Liliales range. They also include woody shrubs, which have fleshy stems and underground storage or perennating organs, mainly bulbous geophytes, sometimes rhizomatous or cormous. [6] Leaves are elliptical and straplike with parallel venation or ovate with palmate veins and reticulate minor venation (Smilacaceae). In Alstroemeria and Bomarea (Alstroemeriaceae) the leaves are resupinate (twisted). [7] [8] [9]

Liliales
Atlas de poche des plantes des champs, des prairies et des bois (PLATE 122) (6022597540).jpg
Colchicum autumnale (Colchicaceae)
Tulipa humilis Lilliput bulbs.jpg
Tulipa humilis (Liliaceae):
Bulbs
Floral morphology
Tulip Tulipa clusiana 'Lady Jane' Rock Ledge Flower 2000px.jpg
Tulipa clusiana (Liliaceae):
Six undifferentiated tepals
Closeup of Stamen and stigma of Lilium 'Stargazer' (the 'Stargazer lily').jpg
Lilium (Liliaceae):
Stigma, style, stamens (anthers, filaments) and tepals
Anther dehiscence in Lilium.jpg
Lilium:
Extrorse anthers

The flowers are highly variable, ranging in size from the small green actinomorphic (radially symmetric) blooms of Smilax to the large showy ones found in Lilium , Tulipa and Calochortus (Liliaceae) and Lapageria (Philesiaceae). Sepals and petals are undifferentiated from each other, and known as tepals, forming a perianth. They are usually large and pointed and may be variegated in Fritillaria (Liliaceae). Nectaries may be perigonal (at base of tepals) but not septal (on ovaries). Perigonal nectaries may be a simple secretory epidermal region at the tepal bases ( Lapageria ) or small, depressed regions fringed with hairs, often with glandular surface protuberances, at the bases of the inner tepals ( Calochortus ), while in Tricyrtis the tepals become bulbous or spur-like at the base, forming a nectar-containing sac. Ovaries may be inferior or superior, the style often long and stigma capitate (pin headed). In a number of taxa there are three separate styles, particularly some Melanthiaceae s.l. (e.g. Helonias , Trillium , Veratrum ) and Chionographis . The outer integument epidermis of the seed coat is cellular, and the phytomelanin pigment is lacking. The inner integument is also cellular and these features are plesiomorphic. [7] [8] [9]

The Liliales are characterised by (synapomorphies) the presence of nectaries at the base of the tepals (perigonal nectaries) or stamen filaments ( Colchicum , Androcymbium ) most taxa but the absence of septal nectaries, [10] together with extrorse (outward opening) anthers. This distinguishes them from the septal nectaries and introrse anthers that are the features of most other monocots. [5] [8] Exceptions are some Melanthiaceae in which nectaries are absent or septal and anthers that are introrse (dehiscence directed inwards) in Campynemataceae, Colchicaceae, and some Alstroemeriaceae, Melanthiaceae, Philesiaceae, Ripogonaceae and Smilacaceae. Tepals are largely three-traced in net-veined taxa of Liliales (e.g. Clintonia , Disporum ), distinguishing them from the single-traced Asparagales, and is associated with the presence of tepal nectaries, presumably to supply them. The presence of separate styles is also a distinguishing feature from Asparagales, where it is rare. Phytomelan is completely absent in Liliales seed coats, unlike Asparagales, which nearly all contain it. [11] [8]

Phytochemistry

The stems contain fructans, the plants also contain chelidonic acid, saponins, while some species contain velamen. The epicuticular wax is of the Convallaria type, consisting of parallel orientated platelets. [12]

Genome

The order includes taxa with some of the largest genomes among Angiosperms, [13] particularly Melanthiaceae, Alstroemeriaceae and Liliaceae. [14]

Taxonomy

With 11 families, about 67 genera and about 1,558 species, Liliales is a relatively small angiosperm order, but a large group within the monocotyledons. [9] [15]

History

Origins

The botanical authority for Liliales is given to Perleb (1826), who grouped eleven families (Asparageae, Pontederiaceae, Asphodeleae, Coronariae, [a] Colchicaceae, Dioscoreaceae, Hypoxideae, Amaryllideae, Haemodoraceae, Burmanniaceae, Irideae) into an order he called Liliaceae. [17] In Perleb's system, he divided the vascular plants into seven classes, of which the Phanerogamicae or seed plants he called his class IV, or Ternariae. The latter, he divided into five orders (ordo), including the Liliaceae. [17]

A number of later taxonomists, such as Endlicher (1836) substitituted the term Coronarieae for this higher order, including six subordinate taxa. Endlicher divided the Cormophyta into five sections, of which Amphibrya contained eleven classes, including Coronarieae. [18] The term Liliales was introduced by Lindley (1853), [19] referring to these higher orders as alliances. Lindley included four families in this alliance. Lindley called the monocots class Endogenae, with eleven alliances including Liliales. [19] Although Bentham (1877) restored Coronariae as one of seven Series making up the monocotyledons, [20] it was replaced by Liliiflorae and then Liliales in subsequent publications (see Table for history). [21]

Phyletic systems

Subsequent authors, now adopting a phylogenetic (phyletic) or evolutionary approach over the natural method, [22] did not follow Bentham's nomenclature. Eichler (1886) used Liliiflorae for the higher order including Liliaceae, placing it as the first order (Reihe) in his class monocotyledons, [23] as did Engler (1903), [24] Lotsy (1911), [25] and Wettstein in 1924, in class Monocotyledones, subdivision Angiospermae. [26]

Hutchinson (1973) [27] restored Liliales for the higher rank, an approach that has been adopted by most major classification systems onwards, reserving Liliiflorae for higher ranks. These include Cronquist (1981), [28] Dahlgren (1985), [29] Takhtajan (1997) [30] as well as Thorne and Reveal (2007). [31]

Hutchinson (1973) derived a more elaborate hierarchy, placing order Liliales as one of 14 in division Corolliferae, one of three divisions of subphylum monocotyledons. Cronquist (1981) placed the order Liliales as one of two in subclass Liliidae, one of five in the class Liliopsida (monocotyledons) of division Magnoliophyta (angiosperms). Dahlgren (1985) made Liliales one of six orders in Superorder Liliiflorae, one of ten divisions of the monocots. Takhtajan (1997) had a more complex system of higher taxonomic ranks, placing Liliales as one of 15 orders within superorder Lilianae, one of four within subclass Liliidae. Liliidae in turn was one of four subclasses in class Liliopsida (monocots). [32] In contrast Thorne and Reveal (2007) abandoned the use of monocotyledons as a distinct taxon, replacing it with 3 separate subclasses of Magnoliopsida (angiosperms), of which Liliidae consists of 3 superorders, placing Liliales in superorder Lilianae. [31]

In all these systems, Liliales (or Liliiflorae) were visualised as either a direct division of the monocots (or equivalent) or were placed in an intermediate division of the monocots, such as superorder Lilianae. [33]

Molecular phylogenetic systems

The development of molecular phylogenetic methods for determining taxonomic circumscription and phylogeny led to considerable revision of angiosperm classification, [34] and establishment of Liliales as a monophyletic group. [35] [36] [8] It was clear by 1996, that the most useful system to date, that of Dahlgren, required urgent revision. [34] The new classification was formalised with the creation of the Angiosperm Phylogeny Group (APG) system (1998–2016), [37] [38] based on monophyletic clades, which continued the use of Liliales as the name for the taxon. [39]

The Angiosperm Phylogeny Group APG system (1998) established a structure of monocot classification with ten orders. [37] Notable was the separation of asparagids, as suggested by Dahlgren, [10] into Asparagales, with other taxa placed in Dioscoreales, resulting in a much reduced order. [9] [8]

Phylogeny

The position of Liliales within the monocots (Lilianae) is shown in the following cladogram. The monocot orders form three grades, the alismatid monocots, lilioid monocots and the commelinid monocots by order of branching, from early to late. These have alternatively been referred to as Alismatanae, Lilianae and Commelinanae. [10] The alismatid monocots form the basal group, while the remaining grades (lilioid and commelinid monocots) have been referred to as the "core monocots". [40] The relationship between the orders (with the exception of the two sister orders) is pectinate, that is diverging in succession from the line that leads to the commelinids. [41] The lilioid monocot orders constitute a paraphyletic assemblage, that is groups with a common ancestor that do not include all direct descendants (in this case commelinids which are a sister group to Asparagales); to form a clade, all the groups joined by thick lines would need to be included. In the cladogram the numbers indicate crown group (most recent common ancestor of the sampled species of the clade of interest) divergence times in mya (million years ago). [42]

Cladogram 1: The phylogenetic composition of the monocots [38] [43]
Lilianae  sensu Chase & Reveal (monocots) 131 [44]
          

Acorales

Alismatales

122
          

Petrosaviales

120

Liliales 121

121

Asparagales 120

commelinids  118
          

Arecales

Poales

          

Commelinales

Zingiberales

Biogeography and evolution

The crown group of Liliales has been dated to ca. 117  Myr (million years ago) in the Early Cretaceous period of the Mesozoic era. [45] [40]

Subdivision

The circumscription of Liliales has varied greatly since Perleb's original construction with 11 families in 1826. [8] Many of these families are now considered to be in Asparagales, with the remainder in commelinids and Dioscoreales, as shown in this table.

Liliales families in progressive taxonomic schemes
Perleb
(1826) [17]
Endlicher
(1836) [18]
Lindley
(1853) [19]
Bentham & Hooker
(1883) [20]
Eichler
(1886) [23]
Engler
(1903) [24]
Lotsy
(1911) [25]
Wettstein
(1924) [26]
Hutchinson
(1973) [27]
Cronquist
(1981) [28]
Dahlgren
(1985) [29]
Takhtajan (1997) [30] Thorne & Reveal (2007) [31] APG IV (2016) [38]
LiliaceaeCoronarieaeLilialesCoronariaeLiliifloraeLiliifloraeLiliifloraeLiliifloraeLilialesLilialesLilialesLilialesLilialesLiliales
Asparageae AAsparagaceae
Asphodeleae AAsphodelaceae
Colchicaceae ColchicaceaeColchicaceaeColchicaceae
Coronariae Liliaceae LiliaceaeLiliaceaeLiliaceaeLiliaceaeLiliaceaeLiliaceaeLiliaceaeLiliaceaeLiliaceaeLiliaceaeLiliaceaeLiliaceae
Amaryllideae AAmaryllidaceaeAmaryllidaceaeAmaryllidaceae
Pontederiaceae cPontederiaceaePontederiaceaePontederiaceaePontederiaceaePontederiaceaePontederiaceae
Dioscoreaceae DDioscoreaceaeDioscoreaceaeDioscoreaceaeDioscoreaceaeDioscoreaceae
Hypoxideae AHypoxidaceae
Haemodoraceae cHaemodoraceaeHaemodoraceaeHaemodoraceaeHaemodoraceaeHaemodoraceae
Burmanniaceae DBurmanniaceaeBurmanniaceae
Irideae AIridaceaeIridaceaeIridaceaeIridaceaeIridaceaeIridaceae
Juncaceae cJuncaceaeJuncaceaeJuncaceaeJuncaceae
Philydriae cPhilydraceaePhilydraceaePhilydraceae
Melanthaceae MelanthaceaeMelanthaceaeMelanthiaceaeMelanthiaceaeMelanthiaceae
Smilaceae SmilaceaeSmilacaceaeSmilacaceaeSmilacaceaeSmilacaceae
Gilliesiaceae AGilliesiaceae
Roxburghiaceae PStemonaceaeStemonaceaeStemonaceaeStemonaceae
Xyrideae c
Mayaceae c
Commelinaceae c
Rapateaceae cRapateaceae
Bromeliaceae cBromeliaceae|Bromeliaceae
Velloziaceae PVellosiaceaeVelloziaceaeVelloziaceae
Taccaceae DTaccaceaeTaccaceaeTaccaceae
Aloinaceae A
Eriospermaceae A
Johnsoniaceae A
Agapanthaceae A
Alliaceae A
Tulipaceae
Scillaceae A
Dracaenaceae A
Luzuriagaceae Luzuriagaceae
Ophiopogonaceae A
Lomandraceae A
Dasypogonaceae c
Calectasiaceae c
Flagellariaceae c
Cyanastraceae cCyanastraceaeCyanastraceae
Agavaceae AAgavaceae
Tecophilaeaceae A
Trilliaceae Trilliaceae(in Melanthiaceae)
Ruscaceae A
Xanthorrhoeaceae A
Alstroemeriaceae AlstroemeriaceaeAlstroemeriaceae
Uvulariaceae (in Colchicaceae
Liliaceae)
Calochortaceae (in Liliaceae)
Geosiridaceae A
Medeolaceae (in Liliaceae)
Corsiaceae Corsiaceae
Campynemataceae Campynemataceae
Petermanniaceae Petermanniaceae
Rhipogonaceae Ripogonaceae
Philesiaceae Philesiaceae
Treatment of families in modern taxonomy (APG), remaining families included in Liliales:

The availability of molecular phylogenetic methods suggested four main lineages within Liliales, and seven families; [8]

  1. Liliaceae group: Liliaceae (including some former Uvulariaceae and Calochortaceae), and Smilacaceae (including Ripogonaceae and Philesiaceae)
  2. Campynemataceae
  3. Colchicum Persicum Baker in Behbahan Colchicum Persicum Baker in Behbahan, Iran IV.jpg
    Colchicum Persicum Baker in Behbahan
    Colchicaceae group: Colchicaceae (including Petermannia and Uvularia), Alstroemeriaceae and Luzuriaga
  4. Melanthiaceae (including Trilliaceae)

The first Angiosperm Phylogeny Group classification (APG I) in 1998 had the following circumscription, with 9 families, having separated Philesiaceae and Ripogonaceae from Smilacaceae: [37]

The APG II system (2003) added Corsiaceae to the Liliales, [46] while APG III (2009) added Petermanniaceae and merged Luzuriagaceae into Alstroemeriaceae. [2] The subsequent revision of APG IV (2016) left this unchanged, with 10 families. [38]

The exact phylogenetic relationship between the families of Liliales has been subject to revision. This cladogram shows that of the Angiosperm Phylogeny Website (2020): [47] [11]

The bulk of the Liliales species are found in the very diverse family Liliaceae (16 genera, 610 species). Of the remaining nine families, three are referred to as the vine families (Ripogonaceae, Philesiaceae and Smilacaceae) and form a cluster. [11]

Families

Corsia ornata CorsiaOrnata.jpg
Corsia ornata

Corsiaceae

The Corsiaceae (ghost-flower family) are a very small family of 3 mycoheterotrophic genera, lacking chlorophyll, with 27 species of perennial herbaceous plants. They are found in montane forests in South America (one genus) and from southern China to northern Australia in areas with high rainfall, and among dense leaf litter. The majority of species occur in the type genus Corsia . The name commemorates the Florentine plant collector Marquis Bardo Corsi Salviati (1844–1907). [48] [49]

Campynema lineare Campynema purple.jpg
Campynema lineare

Campynemataceae

The Campynemataceae (Green-mountainlily family) are a very small family of two genera and four species of rhizomatous herbaceous plants found in Tasmania and New Caledonia. The name is derived from the Greek words kampylos (curved) and nema (thread). [48] [49]

Veratrum album Veratrum album Aubrac.JPG
Veratrum album

Melanthiaceae

The Melanthiaceae (Wake Robin family) is a family of perennial herbaceous plants, whose storage organs include bulbs, rhizomes and corms (rarely, e.g. Schoenocaulon ). Their distribution is temperate and boreal Northern hemisphere, in the Americas extending south to the Andes and in Asia to the Himalayas and Taiwan. Melanthiaceae consists of 17 genera and 173 species distributed in a number of subdivisions. The largest genus is Trillium (44 species) but many genera are monotypic. A number of genera, including Trillium are used as garden ornamentals, especially for woodland gardens. Paris japonica is noted for having the largest genome known to date. The family name is derived from the Greek words melas (black) and anthos (flower) in reference to the dark colour of the petals. [48] [49]

Petermannia cirrosa Petermannia cirrosa.png
Petermannia cirrosa

Petermanniaceae

The Petermanniaceae (Petermann's vine family) consists of a single species, Petermannia cirrosa, a perennial woody vine with underground rhizomes. Petermannia is restricted to Queensland and New South Wales, in temperate rainforests between Brisbane and Sydney. The family was named for Wilhelm Ludwwig Petermann (1806–1855), director of the botanical garden at Leipzig. [48] [49]

Colchicum autumnale Colchicum autumnale.jpg
Colchicum autumnale

Colchicaceae

The Colchicaceae (Naked-ladies or Colchicum family) are perennial erect and climbing plants with underground corms, tubers and rhizomes. They are herbaceous with the exception of Kuntheria which has a somewhat woody stem. Their distribution is widespread including in temperate zones in North America, Europe, North Africa and the Middle east and tropical zones in Africa, Asia and Australasia. They are absent from South America. The family is of medium size with 15 genera and about 285 species. The largest genus is the type genus, Colchicum, with 159spp. Although the alkaloids, which characterise them, they contain are toxic to animals and humans, Colchicine has usage medicinally and in botanical laboratories. They are also include popular garden and indoor ornamentals. These include Colchicum and Gloriosa . The family is named after Colchis on the eastern Black Sea. [48] [49] [9]

Alstroemeria pelegrina Alstroemeria pelegrina. Mariposa de Los Molles).JPG
Alstroemeria pelegrina

Alstroemeriaceae

The Alstroemeriaceae (Inca-lily family) are erect or creeping perennial (rarely annual) herbaceous plants with occasional shrubby vines, some of which have evergreen stems. They are occasionally epiphytic and form often swollen rhizomes. They are found in tropical and temperate Central and South America, as well as Australasia. There are two large genera (Alstroemerieae), the erect Alstroemeria (S America 125 spp.) and twining Bomarea (Central & S America 122 spp.) and two very small genera (Luzuriageae) with 2 and 4 species each, for a total of 253 species in the family. Two species are widely used for food in S America, Alstroemeria ligtu is used for a flour (Chuño) that is extracted from its roots, while the tubers of Bomarea edulis are directly consumed. Luzuriaga radicans , also from S America, produces fibre used in rope making. Alstroemeria cultivars are popular ornamentals and widely used as cut flowers (Peruvian lilies). The family is named for Baron Clas Alströmer (1736–1794), a student of Linnaeus. [48] [49]

Ripogonum scandens Ripogonum scandens Ulva Island 2.JPG
Ripogonum scandens

Ripogonaceae

The Ripogonaceae (Supplejack family) is a very small family, with a single genus, Ripogonum and six species. They are woody evergreen shrubs and vines arising from a horizontal rhizome, swollen at its base to form a tuber. They are confined to Eastern Australasia, with the type species, Ripogonum scandens as the sole New Zealand species. The stems have a use in basketry and building and the young shoots are edible. The name is derived from two Greek words, ripos (wicker) and gony (node) in reference to their node bearing shoots. [48] [49]

Philesia magellanica Philesia magellanica.jpg
Philesia magellanica

Philesiaceae

The Philesiaceae (Chilean-bellflower family) are a very small family consisting of two monotypic genera, the two species being Philesia magellanica and the similar Lapageria rosea . They grow from a short woody rhizome, forming shrubs and vines respectively. They are found in the cool temperate forest of central and southern Chile, Magellan straits and adjacent Argentina, among the southern beech (Nothofagus) trees. Lapageria is the national flower of Chile and a popular ornamental with edible fruit. The name is thought to be related to the Greek word phileo (love), because of the attractiveness of its flowers. [48]

Smilax aspera Smilax aspera.jpg
Smilax aspera

Smilacaceae

The Smilacaceae (Catbrier family) consist of a single large genus, Smilax , with about 210 species, [50] making it the second largest family of the order, after Liliaceae. They are perennial vines, shrubs or herbaceous, sometimes woody, plants with short fibrous woody (sometimes tuberous) rhizomes. Smilacaceae are pantropical with extension into temperate zones north (N America, Mediterranean, Russian Far East) and south (Eastern Australia). A number of species have been used in traditional medicine and as foodstuffs. Smilax china was used to treat gout. S. aristolochiifolia was used to treat syphilis (but later as sarsaparilla to flavor root beer and confectionary). The fruit of S. megacarpa is consumed in conserves. The young shoots of many species are also edible. The family is named after the Greek myth of the affair between the mortal Krokos (or Crocus) and the nymph Smilax, whose punishment was to be turned into the prickly vine Smilax aspera . [48]

Lilium candidum ShoshanTzachor-2-wiki-Zachi-Evenor.jpg
Lilium candidum

Liliaceae

The lily family, Liliaceae, are the largest Liliales family, with 15 genera and about 700 species, though much reduced from earlier circumscriptions, in four subfamilies. Of these genera, Gagea is the largest (204 spp.), but some are quite small, with Medeola being monotypic. They are perennial herbaceous plants, growing from bulbs or corms (rarely creeping rhizomes), with actinomorphic hypogynous flowers that are often coloured and patterned. They are predominantly northern temperate in distribution, with extension to subtropical areas of N Africa, India, China and Luzon, but are absent from the southern hemisphere. The bulbs have been used as foodstuffs or in traditional medicine. Cardiocrinum cordatum and Erythronium japonicum are sources of starch. Many Liliaceae are important in the floriculture and horticulture industries, particularly Tulipa and Lilium , but also Fritillaria . Many are also important ornamentals, such as Calochortus , Cardiocrinum , Clintonia , Erythronium and Tricyrtis . The name is derived from the Latin word for lily, lilium, which in turn is derived from the Greek leirion, a white lily. [48] [49] [40]

Distribution and habitat

Widely distributed but most commonly found in subtropical and temperate regions, especially herbaceous taxa in temperate regions of the Northern Hemisphere, and subtropical regions of the Southern hemisphere, including vines. [8] Since many species are cultivated they have been introduced in many regions and consequently worldwide, and a number have subsequently escaped and naturalised. [9]

Uses

Liliales form important sources of food and pharmaceuticals as well as playing a significant role in horticulture and floriculture as ornamental plants. Pharmaceutical products include colchicine from Colchicum and Gloriosa (Colchicaceae) and veratrine and related compounds from Veratrum (Melanthiaceae) and Zigadenus (Melanthiaceae). [9]

Notes

  1. Coronariae used sensu Agardh (1825), [16] that is corresponding to Linnaeus' Liliaceae

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Smilacaceae, the greenbriers, is a family of flowering plants. While they were often assigned to a more broadly defined family Liliaceae, most recent botanists have accepted the two as distinct families, diverging around 55 million years ago during the Early Paleogene. One characteristic that distinguishes Smilacaceae from most of the other members of the Liliaceae-like Liliales is that it has true vessels in its conducting tissue. Another is that the veins of the leaves, between major veins, are reticulate (net-shaped), rather than parallel as in most monocots.

<span class="mw-page-title-main">Melanthiaceae</span> Family of flowering plants

Melanthiaceae, also called the bunchflower family, is a family of flowering herbaceous perennial plants native to the Northern Hemisphere. Along with many other lilioid monocots, early authors considered members of this family to belong to the family Liliaceae, in part because both their sepals and petals closely resemble each other and are often large and showy like those of lilies, while some more recent taxonomists have placed them in a family Trilliaceae. The most authoritative modern treatment, however, the APG III system of 2009, places the family in the order Liliales, in the clade monocots. Circumscribed in this way, the family includes up to 17 genera.

<span class="mw-page-title-main">Colchicaceae</span> Family of monocot flowering plants

Colchicaceae is a family of flowering plants that includes 15 genera with a total of about 285 known species according to Christenhusz and Byng in 2016.

<span class="mw-page-title-main">Scilloideae</span> Subfamily of bulbous monocot plants

Scilloideae is a subfamily of bulbous plants within the family Asparagaceae. Scilloideae is sometimes treated as a separate family Hyacinthaceae, named after the genus Hyacinthus. Scilloideae or Hyacinthaceae include many familiar garden plants such as Hyacinthus (hyacinths), Hyacinthoides (bluebells), Muscari and Scilla and Puschkinia. Some are important as cut flowers.

<span class="mw-page-title-main">Asphodelaceae</span> Family of flowering plants in the order Asparagales

Asphodelaceae is a family of flowering plants in the order Asparagales. Such a family has been recognized by most taxonomists, but the circumscription has varied widely. In its current circumscription in the APG IV system, it includes about 40 genera and 900 known species. The type genus is Asphodelus.

A system of plant taxonomy, the Thorne system of plant classification was devised by the American botanist Robert F. Thorne (1920–2015) in 1968, and he continued to issue revisions over many years (1968–2007).

One of the modern systems of plant taxonomy, the Dahlgren system was published by monocot specialist Rolf Dahlgren in 1975 and revised in 1977, and 1980. However, he is best known for his two treatises on monocotyledons in 1982 and revised in 1985. His wife Gertrud Dahlgren continued the work after his death.

<span class="mw-page-title-main">Campynemataceae</span> Family of flowering plants

Campynemataceae (Campynemaceae) is a family of flowering plants. The family consists of two genera and four species of perennial herbaceous plants endemic to New Caledonia and Tasmania.

<span class="mw-page-title-main">Lilianae</span> Order of flowering plants

Lilianae is a botanical name for a superorder of flowering plants. Such a superorder of necessity includes the type family Liliaceae. Terminations at the rank of superorder are not standardized by the International Code of Nomenclature for algae, fungi, and plants (ICN), although the suffix -anae has been proposed.

<span class="mw-page-title-main">Boryaceae</span> Family of flowering plants

Boryaceae is a family of highly drought-tolerant flowering plants native to Australia, placed in the order Asparagales of the monocots. The family includes two genera, with twelve species in total in Australia.

<span class="mw-page-title-main">Lilioid monocots</span> Grade of flowering plant orders, within Lilianae

Lilioid monocots is an informal name used for a grade of five monocot orders in which the majority of species have flowers with relatively large, coloured tepals. This characteristic is similar to that found in lilies ("lily-like"). Petaloid monocots refers to the flowers having tepals which all resemble petals (petaloid). The taxonomic terms Lilianae or Liliiflorae have also been applied to this assemblage at various times. From the early nineteenth century many of the species in this group of plants were put into a very broadly defined family, Liliaceae sensu lato or s.l.. These classification systems are still found in many books and other sources. Within the monocots the Liliaceae s.l. were distinguished from the Glumaceae.

<span class="mw-page-title-main">Amaryllidaceae</span> Family of flowering plants

The Amaryllidaceae are a family of herbaceous, mainly perennial and bulbous flowering plants in the monocot order Asparagales. The family takes its name from the genus Amaryllis and is commonly known as the amaryllis family. The leaves are usually linear, and the flowers are usually bisexual and symmetrical, arranged in umbels on the stem. The petals and sepals are undifferentiated as tepals, which may be fused at the base into a floral tube. Some also display a corona. Allyl sulfide compounds produce the characteristic odour of the onion subfamily (Allioideae).

<span class="mw-page-title-main">Amaryllidoideae</span> Subfamily of flowering plants

Amaryllidoideae is a subfamily of monocot flowering plants in the family Amaryllidaceae, order Asparagales. The most recent APG classification, APG III, takes a broad view of the Amaryllidaceae, which then has three subfamilies, one of which is Amaryllidoideae, and the others are Allioideae and Agapanthoideae. The subfamily consists of about seventy genera, with over eight hundred species, and a worldwide distribution.

<span class="mw-page-title-main">Taxonomy of Liliaceae</span> Classification of the lily family Liliaceae

The taxonomy of the plant family Liliaceae has had a complex history since its first description in the mid-eighteenth century. Originally, the Liliaceae were defined as having a "calix" (perianth) of six equal-coloured parts, six stamens, a single style, and a superior, three-chambered (trilocular) ovary turning into a capsule fruit at maturity. The taxonomic circumscription of the family Liliaceae progressively expanded until it became the largest plant family and also extremely diverse, being somewhat arbitrarily defined as all species of plants with six tepals and a superior ovary. It eventually came to encompass about 300 genera and 4,500 species, and was thus a "catch-all" and hence paraphyletic. Only since the more modern taxonomic systems developed by the Angiosperm Phylogeny Group (APG) and based on phylogenetic principles, has it been possible to identify the many separate taxonomic groupings within the original family and redistribute them, leaving a relatively small core as the modern family Liliaceae, with fifteen genera and 600 species.

<span class="mw-page-title-main">Melanthiales</span> Extinct order of flowering plants

MelanthialesLink was an order of monocotyledons, whose name and botanical authority is derived by typification from the description of the type family, Melanthiaceae by Johann Heinrich Friedrich Link in 1829.

<span class="mw-page-title-main">Coronariae</span> Historical term for group of flowering plants, including lilies

Coronariae is a term used historically to refer to a group of flowering plants, generally including the lilies (Liliaceae), and later replaced by the order Liliales. First used in the 17th century by John Ray, it referred to flowers used to insert in garlands. Coronariae soon came to be associated with Liliaceae in the Linnaean system. The term was abandoned at the end of the 19th century, being replaced with Liliiflorae and then Liliales.

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Bibliography

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