{{Short description|Species of orchid}} {{Speciesbox | image = Cleisostoma simondii (as Vanda teretifolia) - Bot. Reg. 8 pl. 676 (1822).jpg | image_caption = 1822 illustration from<br>Botanical Register | genus = Cleisostoma | species = simondii | authority = ([[François Gagnepain|Gagnep.]]) [[Gunnar Seidenfaden|Seidenf.]] | synonyms_ref = <ref name="p"/><ref>[https://apps.kew.org/wcsp/synonomy.do?name_id=377166 Kew World Checklist of Selected Plant Families, ''Cleisostoma simondii var. simondii'']</ref> | synonyms = * ''Vanda simondii'' Gagnep. (1951) (Basionym) * ''Vanda teretifolia'' Lindl. Coll. Bot.: t. 6 (1821), not ''Cleisostoma teretifolium'' <small>Teijsm. & Binn.</small> (1864) * ''Sarcanthus teretifolius'' (Lindl.) Lindl. (1833) * ''Sarcanthus siamensis'' Rolfe ex Downie (1925) * ''Luisia acutilabris'' Guillaumin (1960) * ''Cleisostoma seidenfadenii'' Garay (1972) * ''Cleisostoma teres'' Garay (1972) * ''Cleisostoma acutilabris'' (Guillaumin) Aver. (1988) * ''Echioglossum simondii'' (Gagnep.) Szlach. (1995) * ''Echioglossum seidenfadenii'' (Garay) Szlach. (1995) }}
'''''Cleisostoma simondii''''' is a [[flowering plant]] that grows upon larger [[tree]]s, and known in [[Hong Kong]] as ([[Chinese language|Chinese]]:蜘蛛蘭). It also occurs in the Himalayas (Nepal, Bhutan, India, Assam), Cambodia, Laos, Myanmar, Thailand, Vietnam, and other parts of China (Fujian, Guangdong, Hainan, Yunnan).<ref name="p">[https://apps.kew.org/wcsp/namedetail.do?name_id=41956 Kew World Checklist of Selected Plant Families, ''Cleisostoma simondii'']</ref><ref name="g">[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=242444492 Flora of China, v 25 p 463, 毛柱隔距兰 mao zhu ge ju lan, ''Cleisostoma simondii'']</ref>
==Etymology== The name "Cleisostoma" derives from the Greek words ''kleistos'', meaning "closed" and "stoma" meaning "mouth".<ref>{{Cite web|url=https://lab.troymeyers.com/flasking/item.php?kind=flask&id=TN6092|title = Flasks of Cleisostoma schneiderii 'Harbinger #2' × self}}</ref>
==Description== ''Cleisostoma simondii'' grows to a length of {{convert|30|-|40|cm}} or more, with numerous aerial roots that grow out of the stems. This hardy orchid grows thin, stem-like jointed leaves {{convert|10|-|28|cm}} long that are fleshy, terete, [[linear]] year round, with the whole plant colors ranging from green to dark green under humid, low light conditions, to red to purple under drier more sunlit conditions. The flowers buds develop in late September, blooming long-lasting flowers from October to early November, on a spike up to {{convert|10|-|15|cm}} long, composed from one to eleven flowers, averaging six to seven flowers, with each flower averaging 1.5 cm (15mm) in diameter.<ref name="g"/> <ref>{{Cite web|url=http://www.fotop.net/hkwildorchid/Cle_sim_var_gua|title = Cleisostoma simondii var. Guangdongense 廣東隔距蘭（柱葉隔距蘭）}}</ref><ref>{{Cite web|url=http://www.orchidspecies.com/cleissimondii.htm|title = Iospe Photos}}</ref><ref>{{Cite web|url=https://exoticbulbophyllum.tripod.com/cleisostoma/Cleisostoma_simondii.htm|title = Exotic Bulbophyllum / Cleisostoma / Cleisostoma simondii}}</ref>
==Varieties== Two varieties are recognized:<ref name="p"/>
*''Cleisostoma simondii var. guangdongense'' <small>Z.H.Tsi</small> - Fujian, S Guangdong, Hainan *''Cleisostoma simondii ''var''. simondii'' - Yunnan, Himalayas (Nepal, Bhutan, India, Assam), Cambodia, Laos, Myanmar, Thailand, Vietnam
==Gallery== <gallery widths="160px" heights="140px" perrow="3" > File:Cleisostoma simondii Orchid Flowers Up close.jpg|Cleisostoma simondii Orchid Flowers up close. File:Cleisostoma simondii Orchid Flowers in Hong Kong.jpg|Cleisostoma simondii Orchid flowering. File:Cleisostoma simondii Clonal colony in HK.jpg|Cleisostoma simondii Orchids growing wild in a massive [[Clonal colony]] in [[Hong Kong]], China. File:Cleisostoma simondii group in HK.jpg|A group of wild Cleisostoma simondii Orchids flowering in a tree branch in Hong Kong. </gallery> {{clear}}
==References== {{Reflist}}
{{Taxonbar|from=Q5131111}}
[[Category:Cleisostoma|simondii]] [[Category:Orchids of China]] [[Category:Flora of the Indian subcontinent]] [[Category:Flora of Indo-China]] [[Category:Plants described in 1951]] [[Category:Taxa named by François Gagnepain]]