Ipheion | |
---|---|
Ipheion uniflorum | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Amaryllidaceae |
Subfamily: | Allioideae |
Tribe: | Gilliesieae |
Genus: | Ipheion Raf. [1] |
Type species | |
Ipheion uniflorum (Graham) Raf. | |
Species | |
3; see text |
The flowering plant genus Ipheion (starflower, spring starflower) belongs to Allioideae, a subfamily of the family Amaryllidaceae. [2] It includes three species native to southern Brazil, northeastern Argentina, and Uruguay. [3]
They are small bulbous perennials with narrow grass-like leaves and honey-scented star-shaped flowers in spring, usually in shades of white or pale blue. [4] The genus occurs naturally in Argentina, Uruguay, and southern Brazil, although Ipheion uniflorum has naturalized elsewhere.
The genus was originally described in 1836 by Constantine Samuel Rafinesque, based on Ipheion uniflorum, separating it from Milla uniflora Graham (now Tristagma ). [1] The original description was unifloral inflorescences with white flowers, spathe formed by one bifid bract, staminal filaments independently fused to the perigonial tube and the fruit being a clavate trilocular capsule.
The name then disappeared for more than a century and at various times the species have been included under other related genera ( Milla , Tristagma, Brodiaea (including Hookera ), Leucocoryne , Nothoscordum , Triteleia and Beauverdia ). Several of these genera are now in a completely different but related family (Themidaceae). The closest of these genera to Ipheion is actually Tristagma. For instance in 1837, at the same time as Rafinesque's description, Ipheion uniflorum was described by John Lindley in the Botanical Register as Triteleia uniflora Lindl. (see illustration)
In 1908, Beauverd placed Ipheion uniflorum in a new section of Nothoscordum, Nothoscordum section uniflora Beauv. as Nothoscordum uniflorum Baker (without attributing Rafinesque), along with four other species. [5] However the name Ipheion did not appear again until 1943. In that year Herter elevated Nothoscordum section uniflora to the rank of genus, as Beauverdia. [6] Later that same year Stearn pointed out that the name Ipheion had precedence and described the genus with nine species under that name. [7] [8] [9] [10] [11]
There has been constant uncertainty as to the limits of the genus. [9] At one stage it included 23 species in two sections, [12] at other times it was completely absorbed into other genera such as Tristagma. Those species with yellow flowers were returned to Nothoscordum. In 1972 Guaglianone separated it again from Tristagma and divided it into two sections, Hirtellum and Ipheion. At that time it consisted of eight species in Argentina, Uruguay, southern Brazil and central Chile.
Lindley included Ipheion (as Triteleia) under the family Liliaceae, a pattern that remained until 1926, when Hutchinson moved parts of that family to Amaryllidaceae, as tribe Gilesieae, [13] an arrangement that has largely persisted since.
In 1996, a molecular phylogenetic study of the rbcL gene [14] created the Gilliesioideae, as one of three subfamilies within Alliaceae. As phylogenetically constructed, Gilliesioideae (Gilliesioideae (Lindl.) Am., Botany: 134. 1832 - Gilliesieae Lindl. in Bot. Reg.: ad t. 992. 1826.) consisted of those New World Alliaceae not included in the other two subfamilies, which included both the former Gilliesieae together with Ipheion, Leucocoryne, Nothoscordum, and Tristagma. This is the circumscription which the Angiosperm Phylogeny Group (APG) accepted in the APG classification of 1998 and which later became known as Alliaceae sensu stricto (s.s.). [15]
This construction of Gilliesioideae, implicitly recognised that it was composed of two groups or tribes, informally referred to as Ipheieae and Gilliesieae. The Ipheieae were actinomorphic, and included Ipheion, Nothoscordum, Leucocorynes.l. (including Pabellonia and Stemmatium). [16] Further phylogenetic analysis revealed that Ipheion was not monophyletic but rather biphyletic with some species clustering with Tristagma, and others with Nothoscordum (Fay 2006) although the division into sections was later supported. [9] Research published in 2010 suggests that although related to genera such as Tristagma and Nothoscordum , it is a distinct genus of 3 species. [17] However, other sources do not recognize the genus, placing all the Ipheion species in Tristagma. [18]
Ipheion section Hirtellum was raised to genus rank in 2014 under the older name of Beauverdia , with four species found in Argentina, southern Brazil, and Uruguay. This corresponds to Group 3 of Sassone et al. 2013. [9] This leaves Ipheion section Ipheion representing the genus, but further work is required. [19] This cluster (Group 2 in the cladistic analysis of Sassone et al. 2013) which clusters with Tristagma may either be an independent genus, or a section of the latter genus. These are the three species listed here. [19]
Three species are accepted. [3]
Other species formerly placed in Ipheion have been transferred to Nothoscordum or Tristagma: [18]
Ipheion uniflorum is widely used as an ornamental garden plant in the Americas, Africa, Australia and Europe.
Brodiaea, also known by the common name cluster-lilies, is a monocot genus of flowering plants.
Nothoscordum is a genus of New World plants in the onion tribe within the Amaryllis family. It is probably paraphyletic. The genus is native to North, Central and South America, though a few species have become naturalized in various parts of the Old World.
Brodiaeoideae are a monocot subfamily of flowering plants in the family Asparagaceae, order Asparagales. They have been treated as a separate family, Themidaceae. They are native to Central America and western North America, from British Columbia to Guatemala. The name of the subfamily is based on the type genus Brodiaea.
The Koninklijke Algemeene Vereniging voor Bloembollencultuur, translated from Dutch as the Royal General Association for Bulb Culture, but more commonly known world-wide by the acronym of KAVB, is a trade association for the bulb horticulture sector, and was established in 1860. The association has a rural organization, within which regional groups and departments are active.
Leucocoryne(glory-of-the-sun) is a genus of bulbous perennial plants in the family Amaryllidaceae. The foliage of all species is long and narrow and has an onion-like scent. The blue, white or lilac flowers are held in umbels.
Ipheion uniflorum is a species of flowering plant, related to the onions, placed in the allium subfamily (Allioideae) of the Amaryllidaceae. It is known by the common name springstar, or spring starflower. Along with all the species of the genus Ipheion, some sources place it in the genus Tristagma, but research published in 2010 suggested that this is not correct. It is native to Argentina and Uruguay, but is widely cultivated as an ornamental and reportedly naturalized in Great Britain, France, Australia, New Zealand and the United States.
Gustave Beauverd (1867–1942) was a Swiss botanist, specializing in Pteridophytes, Bryophytes, and Spermatophytes.
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).
Stenomesson is a genus of bulbous plants in the family Amaryllidaceae. All the species are native to western South America.
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.
Tristagma is a genus of South American plants in the onion subfamily with the Amaryllis family. It includes 17 species native to Peru, Argentina, and Chile in South America.
Gilliesia is a genus in the family Amaryllidaceae. The entire genus is native to Chile and Argentina.
Latace is a genus of flowering plants in the family Amaryllidaceae. It includes two species of bulbous geophytes native to northern and central Chile and northwestern Argentina.
Gilliesieae is a tribe of herbaceous geophyte plants belonging to the subfamily Allioideae of the Amaryllis family (Amaryllidaceae). Described in 1826, it contains fifteen genera and about eighty species. It has been variously treated as a subfamily or tribe. It is native to the Southern United States, Central and South America, predominantly Chile. Of the three tribes of genera that make up the subfamily Allioideae, Gilliesieae is the largest and most variable. The tribe was divided into two tribes in 2014, Gilliesiae s.s. and Leucocoryneae, based on differences in floral symmetry and septal nectaries.
Erinna is a genus of perennial herbaceous geophytes in the flowering plant family Amaryllidaceae. It is native to Chile, South America. It is included in the tribe Gilliesieae, within the subfamily Allioideae. The genus is monotypic, with a single species, Erinna gilliesioides. It is relatively rare.
Allioideae is a subfamily of monocot flowering plants in the family Amaryllidaceae, order Asparagales. It was formerly treated as a separate family, Alliaceae. The subfamily name is derived from the generic name of the type genus, Allium. It is composed of about 18 genera.
Allium is a genus of monocotyledonous flowering plants with hundreds of species, including the cultivated onion, garlic, scallion, shallot, leek, and chives. It is one of about 57 genera of flowering plants with more than 500 species. It is by far the largest genus in the Amaryllidaceae, and also in the Alliaceae in classification systems in which that family is recognized as separate.
Traubiinae is a subtribe of plants classified under the tribe Hippeastreae. It belongs to the subfamily Amaryllidoideae of the Amaryllis family (Amaryllidaceae).
The precise taxonomy of the genus Allium is still poorly understood with incorrect descriptions being widespread. With over 850 species distributed over the Northern hemisphere Allium is the sole genus in the Allieae, one of four tribes of subfamily Allioideae (Amaryllidaceae). New species continue to be described and Allium is both highly variable and one of the largest monocotyledonous genera, but the precise taxonomy of Allium is poorly understood, with incorrect descriptions being widespread. The difficulties arise from the fact that the genus displays considerable polymorphism and has adapted to a wide variety of habitats. Furthermore, traditional classications had been based on homoplasious characteristics. However, the genus has been shown to be monophyletic, containing three major clades, although some proposed subgenera are not. Some progress is being made using molecular phylogenetic methods, and the internal transcribed spacer (ITS) region, including the 5.8S rDNA and the two spacers ITS1 and ITS2, is one of the more commonly used markers in the study of the differentiation of the Allium species.
Miersia chilensis is a species of flowering plant in the family Amaryllidaceae. It is a perennial herb endemic to Chile, distributed between the Coquimbo and Araucanía regions. It is a diploid species with a karyotype of 2n=20, which is larger than other species of the genus (2n=12).