Thelasis pygmaea (Griff.) Lindl.

Thelasis pygmaea (Griff.) Lindl., J. Proc. Linn. Soc., Bot. 3: 63 (1858).

Thelasis pygmaea (Griff.) Lindl., Photos by Jeffrey Champion

Family:

Orchidaceae.

Synonym Name: 

Euproboscis pygmaea Griff.

Thelasis amboinensis (J.J.Sm.) J.J.Sm.

Thelasis clausa Fukuy.

Thelasis elongata Blume

Thelasis hongkongensis Rolfe

Thelasis triptera Rchb.f.

Thelasis zollingeri Rchb.f.

VietNamese name:

Lan củ dẹt

English Name:

The Tiny Thelasis

Chinise name:

Ai Zhu Lan - 矮柱兰 

Description: 

Epiphytes, 7-8 cm high, pseudobulb subglobose, 1-1.5 x 1 cm. Leaves 6.5 x 0.8-0.9 cm, oblong-lanceolate, obtuse, thin, membranous. Flowers creamy white, in 6-7 cm long compact spike, from the base of pseudobulb; peduncle about 5.5 cm long; bracts 1.8 x 1.2 mm, ovate, acute, keeled dorsally; dorsal sepal oblong-lanceolate, acute, 1-veined, gland-dotted; lateral sepals boat-shaped, strongly keeled, truncate at apex; petals elliptic-oblong, 1-veined, glandular; lip 2.5 x 1-1.1 mm, oblong, acute, with orbicular small side lobes, 3-veined, glandular.

Distribution:

Andaman Is., Assam, Bismarck Archipelago, Borneo, Cambodia, China South-Central, China Southeast, East Himalaya, Hainan, India, Jawa, Laos, Lesser Sunda Is., Malaya, Maluku, Myanmar, Nepal, New Guinea, Nicobar Is., Philippines, Solomon Is., Sulawesi, Sumatera, Taiwan, Thailand, Vietnam (Quản Bạ, Đồng Văn (Hà Giang)).

Ecological:

Epiphytic on tree trunks and branches or lithophytic on rocks in forests or along valleys; at elevations of 200 to 2600 m.

Flowering times:

Blooms in the winter, spring and summer.

Flower size:

1.8 cm.

Cultivation:

Warm growing epiphyte.

Type: 

Calcutta cult. (Lawrence) s.n. (Nepal) (holo CAL)

Ref:

orchidspecies.com

ipni.org

powo.science.kew.org

orchids.fandom.com