16 Materials for a Flora of the Malayan Peninsula. 



Petals toothed. Lip not lobod. 



Lip apex bifid . . . . . . 14 0. Bevtoldi. 



Lip emarginate . . . . . . 15. 0. ciliolata. 



Lip entire . . . . . . . . 16. 0. hrunnescens. 



Lip 3 lobed. 



Mid lobe cimeate broad .. ..17. 0. intermedia. 



Mid lobe quadrate bifid . . . . 18. 0. gracilis. 



Mid lobe with two long narrow lobes 19. 0. caudata. 

 Mid lobe narrow apex bilobed . . 20. 0. Bolfeana. 



§ I. ACADLES. 



1. 0. LUXATA, Lindl., Gen. and Sp. Orch. PI. p. IT. Leaves few 

 ensiform straight or falcate acuminate 3 to 5 inches long, ^ to -1- 

 inch wide. Spike rather stout as long as the leaves. Bracts ovate 

 dentate. Flowers 5 inch across white or yellow sessile in crowded 

 whorls. Sepals ovate acute. Petals linear lanceolate. Lip entire 

 ovate or obscurelv 3 bilobed, apex rounded, dentate. Capsule sessile 

 triquetrous. Hook. fil. Fl. Brit. Ind. \l. 180. 0. hiaurita, Hook. f. 

 Ic. PL t. 2317. 0. dissitifura, Pidl. Journ. Linn. Soc. XXXIL p. 

 218. Malaxis lunata, Bl. Bijdr. 394. 



On trees, Singapore: Seletar (Eidley 364), Kranji, etc., Bukit 

 Timah Poad (Eidley 10154, 81&7). Distrib. Java. 



2. Prainiana, King, Journ. As. Soc. Beng. Vol. LXIV. 331, 

 Ann. Eoy. Bot. Calc. 8, PI. 1. Tufted. Leaves fleshy falcate -i to ^ 

 inch long j in broad. Spike slender 4 inches long. Flowers minute 

 distinctly verticillate, bright brown. Bract oblong subcntire as long 

 as the ovary. Sepals oblong bhint. Petals elliptic lanceolate serrate. 

 Lip triangular or oblong blunt edges eroso-dentate. 



Perak: (Scortechini) ; Penang: Penara Bukit (Curtis). Dis- 

 trib, Sikkim, Siam. 



3. 0. subnavicularis. King, Journ. As. Soc. Beng. LXYI. II. 

 579. Leaves ensiform obliquely aciuninate J to 6 inches long, -} to ^ 

 inch wide. Spike hardly as long as the leaves, peduncle terete 

 ebracteate. Flowers very densely crowded ■^\ inch long. Bracts 

 small lanceolate erose. Sepals ovate blunt. I'etals narrowly ol)long 

 truncate. Lip about as long as broad very concave from base to apex 

 edges coarsely retroserrate apex blunt emarginate with a central tooth. 



Perak (Scortechini No. 1202). 



4. 0. IRIDIFOLIA, Lindl., Gen. and Sp. PI. 15, Fol. Orcli. 1. 

 Stem short. Leaves ensiform acute 3-5 inches long | to 1 inch wide. 

 Spike 6-10 inches long densely floriferous. Flowers minute green or 

 yellow. Bracts broad toothed sheatbing the ovary. Sepals ovate 

 toothed. Petals as large or smaller. Lip orbicular ovate bifid shortly 



