Costaceae

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Costaceae
Tapeinochilos ananassae2.jpg
Tapeinochilos ananassae of the family Costaceae
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Zingiberales
Family: Costaceae
Nakai [1]
Genera

Costaceae, known as the Costus family or spiral gingers, is a family of pantropical monocots. It belongs to the order Zingiberales, which contains horticulturally and economically important plants such as the banana (Musaceae), bird-of-paradise (Strelitziaceae), and edible ginger (Zingiberaceae). The seven genera in Costaceae together contain about 143 known species [2] (1 in Monocostus, 2 in Dimerocostus, 16 in Tapeinochilos, 2 in Paracostus, c. 8 in Chamaecostus, c. 5 in Hellenia, and c. 80 in Costus). [3] They are native to tropical climates of Asia, Africa, Central America, and South America. Several species are frequently found in cultivation.[ citation needed ]

Contents

Description

The simple leaves are entire and spirally arranged, with those toward the base of the stem usually bladeless. Leaf bases have a closed sheath with a ligule, or projection at the top of the sheath.

Costaceae is different from the other families of Zingiberales in that its species have 5 fused staminodes, rather than 2 or 3, and the Costaceae contain no aromatic oils. The fused infertile stamens form a large petaloid labellum that often functions to attract pollinators. The flowers are solitary in Monocostus. In the other genera, the flowers are borne in a terminal spike that ranges from elongate to nearly capitate. Each flower is subtended by a large bract. The fruit is a berry or capsule. The rhizome is fleshy with tuberous roots.

Taxonomy

Cladogram: Phylogeny of Zingiberales [4]
Zingiberales
Zingiberineae
Zingiberariae

Zingiberaceae

Costaceae

Cannariae

Cannaceae

Marantaceae

Strelitziineae

Lowiaceae

Strelitziaceae

Heliconiaceae

Musaceae

Phylogenetic tree of the family.[ citation needed ]

Costaceae

Monocostus

Dimerocostus

Chamaecostus

Tapeinochilos

Hellenia

[ Cheilocostus

Paracostus

Costus

Related Research Articles

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

The Zingiberales are flowering plants forming one of four orders in the commelinids clade of monocots, together with its sister order, Commelinales. The order includes 68 genera and 2,600 species. Zingiberales are a unique though morphologically diverse order that has been widely recognised as such over a long period of time. They are usually large herbaceous plants with rhizomatous root systems and lacking an aerial stem except when flowering. Flowers are usually large and showy, and the stamens are often modified (staminodes) to also form colourful petal-like structures that attract pollinators.

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

Zingiberaceae or the ginger family is a family of flowering plants made up of about 50 genera with a total of about 1600 known species of aromatic perennial herbs with creeping horizontal or tuberous rhizomes distributed throughout tropical Africa, Asia, and the Americas. Many of the family's species are important ornamental, spice, or medicinal plants. Ornamental genera include the shell gingers (Alpinia), Siam or summer tulip, Globba, ginger lily (Hedychium), Kaempferia, torch-ginger Etlingera elatior, Renealmia, and ginger (Zingiber). Spices include ginger (Zingiber), galangal or Thai ginger, melegueta pepper, myoga, korarima, turmeric (Curcuma), and cardamom.

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

Musaceae is a family of flowering plants composed of three genera with about 91 known species, placed in the order Zingiberales. The family is native to the tropics of Africa and Asia. The plants have a large herbaceous growth habit with leaves with overlapping basal sheaths that form a pseudostem making some members appear to be woody trees. In most treatments, the family has three genera, Musa, Musella and Ensete. Cultivated bananas are commercially important members of the family, and many others are grown as ornamental plants.

<i>Heliconia</i> Genus of plants

Heliconia is a genus of flowering plants in the monotypic family Heliconiaceae. Most of the ca 194 known species are native to the tropical Americas, but a few are indigenous to certain islands of the western Pacific and Maluku in Indonesia. Many species of Heliconia are found in the tropical forests of these regions. Most species are listed as either vulnerable or data deficient by the IUCN Red List of threatened species. Several species are widely cultivated as ornamentals, and a few are naturalized in Florida, Gambia, and Thailand.

<span class="mw-page-title-main">Gesneriaceae</span> Family of flowering plants including African violets

Gesneriaceae, the gesneriad family, is a family of flowering plants consisting of about 152 genera and ca. 3,540 species in the tropics and subtropics of the Old World and the New World, with a very small number extending to temperate areas. Many species have colorful and showy flowers and are cultivated as ornamental plants.

<span class="mw-page-title-main">Hypericaceae</span> Family of flowering plants (St. Johns wort family)

Hypericaceae is a plant family in the order Malpighiales, comprising six to nine genera and up to 700 species, and commonly known as the St. John's wort family. Members are found throughout the world apart from extremely cold or dry habitats. Hypericum and Triadenum occur in temperate regions but other genera are mostly tropical.

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

The Strelitziaceae comprise a family of monocotyledonous flowering plants, very similar in appearance and growth habit to members of the related families Heliconiaceae and Musaceae. The three genera with seven species of Strelitziaceae have been included in Musaceae in some classifications, but are generally recognized as a separate family in more recent treatments such as the APG II system (2003). The APG II system assigns the Strelitziaceae to the order Zingiberales in the commelinid clade.

<i>Orchidantha</i> Genus of flowering plants

Orchidantha is a genus of flowering plants. In the APG III system, it is placed in the family Lowiaceae, as the sole genus. It includes the plants in the formerly recognised genera Lowia and Protamomum.

<span class="mw-page-title-main">Marantaceae</span> Family of flowering plants in the Commelinid order Zingiberales

The Marantaceae are a family, the arrowroot family, of flowering plants consisting of 31 genera and around 530 species, defining it as one of the most species-rich families in its order. Species of this family are found in lowland tropical forests of Africa, Asia, and the Americas. The majority (80%) of the species are found in the American tropics, followed by Asian (11%) and African (9%) tropics. They are commonly called the prayer-plant family and are also known for their unique secondary pollination presentation.

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

Commelinaceae is a family of flowering plants. In less formal contexts, the group is referred to as the dayflower family or spiderwort family. It is one of five families in the order Commelinales and by far the largest of these with about 731 known species in 41 genera. Well known genera include Commelina (dayflowers) and Tradescantia (spiderworts). The family is diverse in both the Old World tropics and the New World tropics, with some genera present in both. The variation in morphology, especially that of the flower and inflorescence, is considered to be exceptionally high amongst the angiosperms.

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

Dilleniaceae is a family of flowering plants with 11 genera and about 430 known species. Such a family has been universally recognized by taxonomists. It is known to gardeners for the genus Hibbertia, which contains many commercially valuable garden species.

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

The Calycanthaceae are a small family of flowering plants in the order Laurales. The family contains three genera and only 10 known species, restricted to warm temperate and tropical regions:

<span class="mw-page-title-main">Pandanaceae</span> Family of flowering plants native to the tropics and subtropics of the Old World

Pandanaceae is a family of flowering plants native to the tropics and subtropics of the Old World, from West Africa through the Pacific. It contains 982 known species in five genera, of which the type genus, Pandanus, is the most important, with species like Pandanus amaryllifolius and karuka being important sources of food. The family likely originated during the Late Cretaceous.

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

Dasypogonaceae is a family of flowering plants based on the type genus Dasypogon, one that has traditionally not been commonly recognized by taxonomists; the plants it contains were usually included in the family Xanthorrhoeaceae. If valid, Dasypogonaceae includes four genera with 16 species. The family is endemic to Australia. The best known representative is Kingia australis.

<i>Costus</i> Genus of flowering plants

Costus is a group of herbaceous perennial plants in the family Costaceae, described by Linnaeus as a genus in 1753. It was formerly known as Hellenia after the Finnish botanist Carl Niclas von Hellens. It is widespread through tropical and subtropical regions of Asia, Africa, and the Americas.

<i>Cheilocostus speciosus</i> Species of flowering plant

Cheilocostus speciosus, or crêpe ginger, is a species of flowering plant in the family Costaceae. Some botanists have now revived the synonym Hellenia speciosa for this species.

<i>Hydrostachys</i> Genus of flowering plants

Hydrostachys is a genus of about 22 species of flowering plants native to Madagascar and southern and central Africa. It is the only genus in the family Hydrostachyaceae. All species of Hydrostachys are aquatic, growing on rocks in fast-moving water. They have tuberous roots, usually pinnately compound leaves, and highly reduced flowers on dense spikes.

<i>Chamaecostus cuspidatus</i> Species of flowering plant

Chamaecostus cuspidatus, common name fiery costus or spiral flag, is a species of herbaceous plant in the family Costaceae native to eastern Brazil. In India, it is known as insulin plant for its purported anti-diabetic properties.

<i>Cheilocostus</i> Genus of flowering plants

Cheilocostus is a genus of flowering plant in the family Costaceae, with the type species C. speciosus. Databases are currently inconsistent, with some botanists preferring to place the five species in the genus Hellenia.

The ginger-families or ginger group or Core Zingiberales is a terminal clade in the order Zingiberales (Monocotyledoneae) that comprises Zingiberaceae, Costaceae, Marantaceae and Cannaceae. Their shared synapomorphy of a single fertile anther and four or five highly modified staminodia differentiate them from the basal paraphyletic assemblage of the "banana-families".

References

  1. Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III". Botanical Journal of the Linnean Society. 161 (2): 105–121. doi: 10.1111/j.1095-8339.2009.00996.x .
  2. Christenhusz, M. J. M.; Byng, J. W. (2016). "The number of known plants species in the world and its annual increase". Phytotaxa. Magnolia Press. 261 (3): 201–217. doi: 10.11646/phytotaxa.261.3.1 .
  3. Chelsea D. Specht & Dennis Wm. Stevenson. 2006. "A new phylogeny-based generic classification of Costaceae (Zingiberales)".Taxon55(1):153-163. (See External links below).
  4. Sass et al 2016.

Bibliography