ORCHIDACE^ 



broad, strongly concave, three-nerved. Petals about 3 mm. long, 

 1.25 mm. broad, elliptic-oblanceolate, obtuse or subacute, one- 

 nerved. Lip with a very short broad claw, in natural position 

 deltoid with involute lateral margins, when spread out ovate, 

 broadly rounded at the apex, about 2 mm. long, 1.7 mm. broad 

 near the slightly thicker base, three-nerved. Column minute with 

 a sharply bifid rostellar process. 



Another collection, Clemens 109, shows one plant with a short 

 portion of a slender, sheath-concealed rhizome between subap- 

 proximate pseudobulbs as well as an enveloping sheath produced 

 into a blade. There is also a diminutive plant with leaf about 4.7 

 cm. long and scape about 11 cm. tall. In this collection the ovaries 

 are not so well developed and the flowers are slightly larger, but 

 apparently the plants are less mature than the type. 



This species is more or less allied to Thelasis obtusa Bl., but it 



is easily separable because of the differently proportioned leaves, 



longer scapes and larger flowers. It differs from T. bifblia Hook. f. 



in having a three-nerved lip and bifid rostellum. 



KiAU, Clemens 84- (Type), November 1915. 3000 feet altitude. "Green 

 buds" — ovaries. Loboxg Cave, ClerneJis 109, November 1915. 5000 feet 

 altitude. Flower yellow and green. 



38. PH RE ATI A Li?idL 



Four species of this genus were hitherto recorded from Borneo, 



of which two were reported from Mount Kinabalu. 



I. Phreatia Amesii KrdnzL in Engl. Pflanzenreich IV. 50. 

 II. B. 23 (1911) 16. Phreatia Myosurus AmesOvc\\.2 (1908) 203 

 excl. synon. fide Kriinzl. 



This plant is a little stouter and the claw of the lip very 

 slightly more oblong than the Philippine specimens. 

 Kinabalu, Haslam, July-August 1916. 



[ 207 ] 



