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Orchid Species: Thelasis clausa

Kew currently accepted name is Thelasis pygmaea

Thelasis clausa is an orchid species identified by Fukuy. in 1935. Culture information and photos for this orchid are commonly detailed under the currently accepted name of Thelasis pygmaea.
Genus
Thelasis (Tls.)
Grex
clausa
Parents
Species
Author
Fukuy.
Year
1935
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ORIGIN: Found in China, Taiwan, Assam, eastern Himalayas, India, Nepal, Andaman Islands, Myanmar, Thailand, Laos, Vietnam, Borneo, Java, Lesser Sunda Islands, Malaysia, Moluccas, the Philippines, Sulawesi, Sumatra, Bismark archipelago, Solomon Islands and New Guinea by rivers on tree trunks and in old mangroves as well as hill and lower to upper montane forests at elevations of 200 to 2600 meters.

DESCRIPTION: Mini-miniature sized, hot to warm growing epiphyte with a freely branching rhizome giving rise to round yet flattened, thin necked, fleshy pseudobulbs enveloped below partially by a small sheath carrying a smaller leaf and carrying a 1 to 2, apical, narrowly lanceolate, unequally, obtusely bilobed, gradually narrowing below into the base leaf with the 2nd one always being smaller, that blooms in the spring and summer on an elongating, horizontal, to 4.4 [11 cm] long, successively few, many flowered inflorescence with 2 small sheaths spread out along the length and a gradually extending rachis with only 3 to 4 flowers open at any one time, all arranged in a short conical head.

FLOWER SIZE: 0.08 inches [1.7 mm] -- information provided by Jay Pfahl, author of the Internet Orchid Species Encyclopedia (IOSPE).
Other Names
Genus Name Genus Grex Name Year Author
Add+ Thelasis Tls pygmaea 1858 (Griff.) Lindl.
Add+ Euproboscis Euproboscis pygmaea 1845 Griff.
Add+ Thelasis Tls amboinensis 1914 (J.J.Sm.) J.J.Sm.
Add+ Thelasis Tls elongata 1856 Blume
Add+ Thelasis Tls hongkongensis 1896 Rolfe
Add+ Thelasis Tls triandra 1858 Blume
Add+ Thelasis Tls triptera 1855 Rchb.f.
Add+ Thelasis Tls zollingeri 1857 Rchb.f.
Most awarded/recent cultivars: Tls. pygmaea 'Boon and Joe's Surprise' (1998)
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