40 Materials for a Flora of the Malayan Peninsula. 



19. D. GRANDE, Hook. fil. Fl. Brit. lud. Y. p. 724, Ic. PI. 2024. 

 Stems 9 inches to a foot long, broad flattened. Leaves lanceolate acute 

 light green 2 inches long nearly ^ inch wide, covering the stems to the 

 top, reduced to sheatlis only at the base. Racemes in the axils of the 

 upper leaves, ^ inch long covei-ed with brown lanceolate acute bracts. 

 Flowers ^-J inch long yellow tinted red, on pedicels \ inch long. 

 Upper sepal ovate laterals broader triangular. Mcntnin as long ob- 

 tuse. Petals lanceolate acute. Lip cuneate flabellate bilobed, lobes 

 truncate, lateral lobe short, a toothed lamella on the disc. Column 

 short, arms erect tootlied like. Anther conic with a tuft of hairs at 

 the apex. 



Singapore: Scletar (Ridley) ;.lohor: Kwala Sembrong (Kelsall) ; 

 Pahang: 'J'ahan River (Ridley) ; Selangor: Kuala Luuipor Rawang 

 (Ridley) ; Perak : (Scortechini) ; Pcnang: (Ic. in herb. Kew). Not 

 rare on very lofty trees, largest species in the section. Endemic. 



20. D. ATROPURPUREUM, Miq. Fl. Ind. Bot. II J. G44. Small 

 tufted plant, 2 to 9 inches tall. Leaves lanceolate or linear lanceolate 

 acute imbricating 1 inch long, nearly | inch wide. Racemes short 

 axillary, ^ inch long with numerous dry bracts. Flowers j incli long, 

 yellow, dotted with j)ink, or deep red. Upper sepal lanceolate acute, 

 laterals triangular larger with a short broad blunt mcntum. Petals 

 smaller linear. Lip entire oblong-s])atliulate apex rounded, puljcscent 

 a horse-shoe-shaped callus on the apex and a conic tubercle beneath the 

 tip. Column straight. Hook. fil. Fl. Brit. Ind. Y. 724. D. concin- 

 num Miq. loc. OxijstophyUum atropurpureum, Blume Rumphia IV. 

 41, t. 193, f. 4 and 198 c. 0. carnosum, Bl. Bijdr. 336, fig. 38, Lindl. 

 Gen. and Sp. Orch. pi. 72. Apontm concinituni . Lindl. Gen. and Sp. 

 Orch. PI. Ic. 



Singapore: (Wallieh 2019), Kranji (Ridley 368) ; Johor: Kwala 

 Kahang (Kelsall) ; Pahang: Rumpin River, Pekan (Ridley); Ma- 

 lacca: Sungei Rambei; Selangor: Kuala Lumpor (Ridley); Perak: 

 (Scortechini) ; Penang: Government Hill. Distrib. Tenasserim, 

 Siam, Malay islands. Common on trees, mangrove swamps, etc. 



21. 1). siNUATUM, Lindl.. Walp. Ann. VI. 280. Stems long 

 pendulous 8 inches or more long. Leaves lanceolate acuminate pun- 

 gent ind)i-icating fleshy coriaceous 1 inch long | inch wide. J^u^emes 

 from the upper leat'-axils i^ inch long with small and fewer bracts than 

 D. atropurpureum. Flowers larger orange, solitary. Upper sepal 

 lanceolate laterals larger triangular. Mentuni short thick. Petals 

 much smaller lanceolate blunt. Lip fleshy cuneate with very short 

 tooth like lateral lobes, apex rounded entire thickened with a horse- 

 shoe shaped callus above, dark red, and a conicle tubercle beneath. 

 Column curved, arms erect very inconspicuous. Anther conic. Hook, 

 fil. Fl. Brit. Lid. V. 724. Aporuni sinuntum Lindl. Bol. Reg. 1841, 

 Misc. l.Griflith Calc. Journ. Nat. Hist. V. 368. 



