Thrixspermum is a genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of orchids, comprising around 100 species

Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 distributed from India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

 to Southeast Asia

Southeast Asia

Southeast Asia, South-East Asia, South East Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geographically south of China, east of India, west of New Guinea and north of Australia. The region lies on the intersection of geological plates, with heavy seismic...

 and New Guinea

New Guinea

New Guinea is the world's second largest island, after Greenland, covering a land area of 786,000 km2. Located in the southwest Pacific Ocean, it lies geographically to the east of the Malay Archipelago, with which it is sometimes included as part of a greater Indo-Australian Archipelago...

. The genus is also present in several Pacific Islands

Pacific Islands

The Pacific Islands comprise 20,000 to 30,000 islands in the Pacific Ocean. The islands are also sometimes collectively called Oceania, although Oceania is sometimes defined as also including Australasia and the Malay Archipelago....

 and two species have been found in Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. The type species

Type species

In biological nomenclature, a type species is both a concept and a practical system which is used in the classification and nomenclature of animals and plants. The value of a "type species" lies in the fact that it makes clear what is meant by a particular genus name. A type species is the species...

 is Thrixspermum centipedia. These orchids live in lowland tropical rainforest

Rainforest

Rainforests are forests characterized by high rainfall, with definitions based on a minimum normal annual rainfall of 1750-2000 mm...

s up to an altitude of 1,200 m.

Thrixspermum are small or medium-sized monopodial

Monopodial

Vascular plants with monopodial growth habits grow upward from a single point. They add leaves to the apex each year and the stem grows longer accordingly...

 epiphyte

Epiphyte

An epiphyte is a plant that grows upon another plant non-parasitically or sometimes upon some other object , derives its moisture and nutrients from the air and rain and sometimes from debris accumulating around it, and is found in the temperate zone and in the...

 orchids. They have a typical flattened raceme

Raceme

A raceme is a type of inflorescence that is unbranched and indeterminate and bears pedicellate flowers — flowers having short floral stalks called pedicels — along the axis. In botany, axis means a shoot, in this case one bearing the flowers. In a raceme, the oldest flowers are borne...

 that bears flowers in either two distinct ranks or any direction. Flowers are fragrant and last 2 to 3 days.

The scientific name refers to the hair-like seeds.

Species

Thrixspermum belongs to the same clade

Cladistics

Cladistics is a method of classifying species of organisms into groups called clades, which consist of an ancestor organism and all its descendants . For example, birds, dinosaurs, crocodiles, and all descendants of their most recent common ancestor form a clade...

 as Acampe

Acampe

Acampe, abbreviated as Acp in horticultural trade, is a genus of seven monopodial, epiphytic vandaceous species of orchids, distributed from tropical Africa to India, eastwards to China and southwards to Malaya, Indonesia, the Philippines and New Guinea...

, Arachnis

Arachnis (orchid)

The genus Arachnis, abbreviated as Arach in horticultural trade, is a member of the Orchid family , consisting of more than 20 species native to Southeast Asia, Indonesia, the Philippines, New Guinea, and the Solomon Islands....

, Brachypeza

Brachypeza

Brachypeza is a genus of flowering plants from the orchid family, Orchidaceae.-Selected species:* Brachypeza archytas Garay 1972* Brachypeza brevitibia Van Duzee 1928* Brachypeza dentica...

, Dyakia

Dyakia

Dyakia can be:* Dyakia , a genus of land snails in the family Dyakiidae* Dyakia , a genus of orchids in the subfamily Aeridinae...

, Pelatantheria

Pelatantheria

Pelatantheria is a genus of flowering plants from the orchid family, Orchidaceae.- References :*Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. . Genera Orchidacearum 1. Oxford Univ. Press....

, Phalaenopsis

Phalaenopsis

Phalaenopsis Blume , abbreviated Phal in the horticultural trade, is an orchid genus of approximately 60 species. Phalaenopsis is one of the most popular orchids in the trade, through the development of many artificial hybrids....

, Pomatocalpa

Pomatocalpa

Pomatocalpa is a genus of flowering plants from the orchid family, Orchidaceae.- References :*Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. . Genera Orchidacearum 1. Oxford Univ. Press....

, Trichoglottis

Trichoglottis

Trichoglottis, abbreviated Trgl in horticultural trade, is a genus of plant in family Orchidaceae. It contains about 60 species found in East Asia, Malaysia, Australia, the Philippines and Polynesia....

, and Vanda

• Thrixspermum aberrans Schltr. 1913
• Thrixspermum acuminatissimum (Rchb. f.) Rchb.f. 1868 (synonym Sarcochilus acuminatissimus)
• Thrixspermum acutilobum J.J.Sm. 1921
• Thrixspermum adenotrichum Schltr. 1913
• Thrixspermum affine Schltr. 1906
• Thrixspermum agamense J.J.Sm. 1927
• Thrixspermum agusanense Ames 1915
• Thrixspermum album Rupp 1940
• Thrixspermum amesianum L.O.Williams 1938
• Thrixspermum amplexicaule (Bl.) Rchb. f. 1867 : Flower-stem-surrounded-by-leaves Thrixspermum (synonym Sarcochilus amplexicaulis
• Thrixspermum angustatum L.O.Williams 1938)
• Thrixspermum annamense ( Guillaum. ) Garay 1972 (synonym Ascochilus annamensis)

• Thrixspermum arachnites Rchb. f. (synonym Sarcochilus arachnites)
• Thrixspermum arachnitiforme Schltr. 1921
• Thrixspermum aurantiacum J.J.Sm. 1920
• Thrixspermum austrosinense T.Tang & F.T.Wang 1974
• Thrixspermum barbellatum (Schltr.) M.A.Clem., B.J.Wallace & D.L.Jones 1989
• Thrixspermum batuense J.J.Sm. 1909
• Thrixspermum beccarii Rchb.f. 1886
• Thrixspermum bicristatum Ames 1915
• Thrixspermum bigibbum Schltr. 1911
• Thrixspermum brevibracteatum J.J.Sm. 1928
• Thrixspermum brevicapsularis Holttum 1947
• Thrixspermum brevicaule Carr 1929
• Thrixspermum brevipes Schltr. 1913
• Thrixspermum calceolus
  Thrixspermum calceolus
  Thrixspermum calceolus, commonly called the Small Shoe-carrying Thrixspermum, is a species of orchid endemic to southeastern Australia....
  
   Rchb.f. : Small Shoe-carrying Thrixspermum (synonym Sarcochilus calceolus)
• Thrixspermum canaliculatum J.J.Sm. 1914
• Thrixspermum ceciliae (F.Muell.) Rchb.f. 1871
• Thrixspermum celebicum Schltr. 1911
• Thrixspermum centipedia Lour 1790 : Centipede Thrixspermum (type species)
• Thrixspermum ciliatum Schltr. 1906
• Thrixspermum clavilobum J.J.Sm. 1928
• Thrixspermum collinum Schltr. 1913
• Thrixspermum comans J.J.Sm. 1907
• Thrixspermum congestum  (Bailey) Dockrill 1967 (synonym Cleisostoma congestum
• Thrixspermum conigerum J.J.Sm. 1921)
• Thrixspermum cordulatum J.J.Sm. 1927
• Thrixspermum corneri Holttum 1947
• Thrixspermum crassifolium Ridl.
• Thrixspermum crassilabre (King & Pantl.) Ormerod 2004
• Thrixspermum crescentiforme Ames & C.Schweinf. 1920
• Thrixspermum cymboglossum Schltr. 1911
• Thrixspermum denticulatum Schltr. 1906 : Toothed Thrixspermum
• Thrixspermum devolium T.P.Lin & C.C.Hsu 1977
• Thrixspermum dilatatum Rchb.f. 1865
• Thrixspermum divitiflorum (Benth.) Rchb.f. 1877
• Thrixspermum doctersii J.J.Sm. 1914
• Thrixspermum duplocallosum Holttum 1947
• Thrixspermum elmeri L.O.Williams 1938
• Thrixspermum elongatum Ames 1915 : Elongate Thrixspermum
• Thrixspermum eximium L.O.Williams 1938
• Thrixspermum falcilobum Schltr. 1906
• Thrixspermum fantasticum L.O.Williams 1938
• Thrixspermum filifolium Schltr. 1911
• Thrixspermum fimbriatum (Ridl.) J.J.Wood 1994
• Thrixspermum flaccidum J.J.Sm. 1920
• Thrixspermum formosanum : White Moth Orchid (synonym Sarcochilus formosanus)
• Thrixspermum fragrans Ridl. 1921
• Thrixspermum godeffroyanum Rchb.f.
• Thrixspermum gombakense J.J.Sm. 1928
• Thrixspermum gracilicaule Schltr. 1907
• Thrixspermum graeffei Rchb.f.
• Thrixspermum hillii (F.Muell.) Rchb.f. 1871
• Thrixspermum incurvicalcar J.J.Sm. 1926
• Thrixspermum indragiriense Schltr. 1907
• Thrixspermum indusiatum Rchb.f. 1886
• Thrixspermum infractum Schltr. 1906
• Thrixspermum inquinatum J.J.Sm. 1907
• Thrixspermum integrum L.O.Williams 1938
• Thrixspermum iodochilus Ridl. 1922
• Thrixspermum japonicum
  Thrixspermum japonicum
  Thrixspermum japonicum is a species of orchid native to Korea, south-central and southern Japan....
  
   (Miq.) Rchb. f. 1878 : Japan Thrixspermum (synonym Sarcochilus japonicus)
• Thrixspermum javanicum J.J.Sm. 1921
• Thrixspermum kjellbergii J.J.Sm. 1933
• Thrixspermum lampongense J.J.Sm. 1917
• Thrixspermum latifolium J.J.Sm. 1917
• Thrixspermum latisaccatum J.J.Sm. 1920
• Thrixspermum leopardinum Par. & Rchb.f. 1874
• Thrixspermum leucorachne Ridl.
• Thrixspermum ligulatum L.O.Williams 1938
• Thrixspermum linearifolium Ames 1915
• Thrixspermum lombokense J.J.Sm. 1925
• Thrixspermum longicauda Ridl.
• Thrixspermum longilobum J.J.Sm. 1920
• Thrixspermum longipilosum J.J.Sm. 1922
• Thrixspermum loogemanianum'' Schltr. 1911
• Thrixspermum lucidum Schltr. 1911
• Thrixspermum luniferum Rchb.f. 1868
• Thrixspermum maculatum Schltr. 1906
• Thrixspermum malayanum J.J.Sm. 1921
• Thrixspermum mcgregorii Ames 1907
• Thrixspermum merguense (Hook.f .) Kze. 1996 (synonym Sarcochilus merguensis)
• Thrixspermum montanum Ridl. 1913
• Thrixspermum musciflorum A.S.Rao & Joseph 1971
• Thrixspermum neglectum Fukuyama 1952
• Thrixspermum neo-hibernicum Schltr.
• Thrixspermum oeonioides Schltr. 1919
• Thrixspermum olivaceum (Lindl.) Rchb.f. 1865
• Thrixspermum oreadum Schltr. 1913
• Thrixspermum papillosum Carr 1929
• Thrixspermum parviflorum (Lindl.) Rchb.f. 1865
• Thrixspermum patens J.J.Sm. 1921
• Thrixspermum pensile Schltr. 1911
• Thrixspermum philippinense Ames 1914
• Thrixspermum phyllorhizum (F.Muell.) Rchb.f. 1871
• Thrixspermum platyphyllum Rchb.f. 1868
• Thrixspermum platystachys  (F.M. Bailey) Schltr. 1911 : Broad-inflorescence Thrixspermum
• Thrixspermum ponapense Tuyama 1940
• Thrixspermum pulchrum Carr 1932
• Thrixspermum purpurascens Rchb. f.
• Thrixspermum quinquelobum Ames 1915
• Thrixspermum raciborskii J.J.Sm
• Thrixspermum remotiflorum J.J.Sm. 1906
• Thrixspermum robinsonii Ames 1915
• Thrixspermum roseum J.J.Sm. 1918
• Thrixspermum rostratum Ames 1915
• Thrixspermum rubricentrum (Fitzg.) Rchb.f. 1887
• Thrixspermum rubrocallosum Carr 1929
• Thrixspermum sagoense J.J.Sm. 1928
• Thrixspermum samarindae Schltr. 1906
• Thrixspermum saruwatarii
  Thrixspermum saruwatarii
  Thrixspermum saruwatarii is a species of orchid native central and southern Taiwan....
  
   (Hayata) Schltr. 1919
• Thrixspermum sasaoi Masam. 1934
• Thrixspermum simondii Gagnep. 1951
• Thrixspermum simum J.J.Sm. 1927
• Thrixspermum squarrosum J.J.Sm. 1921
• Thrixspermum subteres J.J.Sm.
• Thrixspermum sumatranum J.J.Sm. 1920
• Thrixspermum tahanense Carr 1930
• Thrixspermum tenuicalcar Carr 1932
• Thrixspermum torajaense P.O'Byrne 1998
• Thrixspermum tortum J.J.Sm. 1914
• Thrixspermum triangulare Ames & C.Schweinf. 1920
• Thrixspermum tridentatum (Lindl.) Rchb.f. 1865 (synonym of Plectorrhiza tridentata (Lindl.) Dockrill, 1967)
• Thrixspermum trichoglottis
  Thrixspermum trichoglottis
  Thrixspermum trichoglottis is a monopodial orchid in the subfamily Epidendroideae.-Description:Morphologies that have been observed in Pasoh Forest Reserve, Malaysia:*pseudobulb absent*monopodial...
  
   (Hook.f.)Kuntze 1896
• Thrixspermum tsii  W.H.Chen & Y.M.Shui 2005
• Thrixspermum tylophorum Schltr. 1911
• Thrixspermum validum J.J.Sm. 1908
• Thrixspermum vanoverberghii Ames 1914
• Thrixspermum walkeri Seidenf. & P.Ormerod 1995
• Thrixspermum warianum Schltr. 1913 : Warian Mountain Thrixspermum
• Thrixspermum weberi Ames 1922
• Thrixspermum wenzelii Ames 1915
• Thrixspermum xanthanthum Tuyama 1940
• Thrixspermum xantholeucum Schltr.