14 
CXXXVI. ORCHIDE^E. 
[Oberonia. 
Midlobe with 2 long narrow lobes . . (22) 0. caudata 
Midlobe narrow tip bilobed . . . {23) 0 . Rolfeana 
Stems 13 in. long; midlobe entire lanceolate . (24) 0. pendula 
Stem bare at base from fall of leaves . . (25} 0. condensata 
(1) O. lunata Lindt. Gen. and Sp. Orch. Pl. 17; Ridl. Mat. 
i. 16. O. biaurita Hook. fit. F.B.l. vi. 180; Ic. PL t. 2317. O. dissiti- 
flora Ridl, Journ. Linn. Soe. xxxii. 2x8. 
Stemless. Leaves few enslform or falcate, 3 to 5 in. long, *3 to 
•5 in. wide; spike 3 to 5 in. long. Bracts ovate dentate. Flowers 
•25 in. wide, white or yellow in dense whorls. Sepals ovate-lanceo¬ 
late. Petals linear-lanceolate. Lip ovate entire or obscurely 
trilobed, tip round toothed. Capsule sessile, 3-angled. Hab. 
On trees, Singapore, Bukit Timah; Selitar; Kranji. Distrib. 
Java. 
(2) O. Prainiana King, Journ. As. See. Beng. lxiv. 331; Ann. 
Bot. Gard. Calc. 8, pl. 1. 
Leaves falcate, -5 to 75 in. long, *25 in. wide. Spike slender, 
4 in. long. Flowers whorled bright brown minute. Bracts oblong 
entire as long as ovary. Sepals oblong blunt. Petals elliptic 
lanceolate serrate. Lip triangular or oblong; edges toothed. Hab. 
Negri Sembilan, Siliau (G. Williams). Perak (Scortechini). Penang, 
Penara Bukit (Curtis). Distrib. Sikkim, Siam. 
(3) O. subnavicularis King, Journ. As. Soc. Beng. Ixvi. ii. 579; 
Ridl. Mat. i. 16. 
Leaves ensiform, oblique acuminate, 75 to 6 in. long, *25 to 
•5 in. wide. Spike hardly as long; peduncle terete. Flow’ers very 
densely crowded, *05 in. wide. Bracts lanceolate erose. Sepals 
ovate blunt. Petals narrow oblong truncate. Lip as long, as 
broad concave, edges coarsely retro-serrate, tip emarginate with 
central tooth. Hab. Very rare, Perak, no locality (Scortechini). 
(4) O. iridifolia Lindl. Gen. and Sp. Orch. PL 15; Ridl. Mat. 
i. 16. 
Leaves ensiform acute, 3 to 5 in. long, -5 to 1 in. wide. Spike 6 
to 10 in. long, densely flowered. Flowers minute, green or yellow. 
Bracts broad toothed sheathing ovary. Sepals ovate toothed. 
Petals as large or less. Lip orbicular-ovate shortly bifid at tip, 
toothed all round. Hab. Local, Lankawi, Pulau Hujong Duri 
(Curtis). Distrib. India and Siam, Java. 
(5) O. gracillima Ridl. Journ. Roy. As. Soc. S. Br. 43, p. 93; 
Mat. i. 17. 
Leaves 4 or 5 ensiform acute, 1-5 in. long, *12 in. wude. Spike 
very slender, 3 to 4 in. long, base nude. Bracts lanceolate acute 
longer than ovary. Flowers minute whorled, 5 to 6 in a whorl. 
Sepals oblong blunt entire. Petals broader ovate toothed all 
whitish. Lip orange oblong, tip acute bifid with a wade sinus 
between lobes, and short round auricles at base. Hab. Very rare, 
Tringganu, Bundi (Rostados). 
