e-Flora of Thailand

Volume 12 > Part 2 > Year 2014 > Page 504 > Orchidaceae > Eulophia

2. Eulophia angustilabris Seidenf.wfo-0000959667

Nordic J. Bot. 5: 166. 1985. Fig. 276.


Accepted Name : This is currently accepted.


Description : Plant with pseudobulbs above ground. Pseudobulbs conical, slightly compressed, ca 6 cm long, ca 3.5 cm in largest diameter. Foliage leaves 4–5, present at anthesis, leaf bases forming a short pseudostem; free part of largest leaf narrowly linear to linear-oblanceolate, acute to acuminate, 20–30 by 1–2 cm. Inflorescence stout, racemose, 25–39 cm tall, lax, 7- to 14-flowered; peduncle green, 16–19 cm long; floral bracts shorter than ovaries. Flowers spreading, opening widely, mainly olive-green flushed dull brown (labellum white with brown markings). Sepals acuminate, mucronate; dorsal sepal linear, 9.4–11 by 1.5–1.8 mm; lateral sepals obliquely linear-lanceolate, 11–12.2 by 1.6–1.9 mm. Petals obliquely (linear-)lanceolate, acuminate, 7.5–8.9 by 1.4–1.9 mm, glabrous. Labellum 3-lobed, 7.4–7.7 by 3.9–4.5 mm when flattened, widest across side lobes, spurred at base, glabrous on the ventral side; mid-lobe oblanceolate, rounded to subtruncate, margins straight; ornaments of 3 fleshy, slightly undulate keels extending from the labellum base to about half-way along mid-lobe; spur subcylindric, slightly complanate, slightly incurved, 3–4 mm long. Column 3.7–4.5 mm long; column foot much shorter than column proper, flat. Ovary (including pedicel) to ca 16 mm long. Capsule not seen.


Thailand : SOUTH-WESTERN: Prachuap Khiri Khan (Sam Roi Yot – type: Larsen 74-00095, holotype -AAU, isotype -C).


Distribution : Endemic.


Ecology : No information available on habitat or altitudinal range. Flowering: April–May in cultivation.


Main