APOSTASIACEH OF THE MALAY PENINSULA. 263. 
It also occurs in Borneo! and the. Tembelan Isles! 
There are two forms of this: the true D. sanguinolentun, 
Lindl., with light, creamy yellow petals and sepals and lip 
tipped with violet pink, and an ochreous-yellow spot (not red, 
as usually described) in the centre of the lip; and var. cerinwm, 
with no spots on the tips of the petals and sepals. D. cerinum, 
Reichb. f. in Gard. Chron. (1879) 1. p. 554, collected in 
the Sulu Archipelago by Burbidge, seems to me to be hardly 
distinct from the latter variety, but, according to Burbidge’s 
drawing and Reichenbach’s description, the lip is obscurely 
three-lobed. I doubt its being a distinct species. The yellow 
variety was much more common in Kedah Peak than the violet- 
tipped one. 
DENDROBIUM HYMENANTHUM, Hook. f., Fl. Brit. Ind., v. p. 732. 
D. hymenopterum, Hook. f., Ic. Pl., t. 2032. 
Hab, Perak: Gunong Batu Putih, Wray. 
D. Hucui, Reichb. f. in Gard. Chron. (1882), 1. p. 764. 
Caules pedales vel ultra, teretes vel superne incrassati, graciles, 
debiles, purpurei; internodi breviores. Folia pauca, 3 poll. 
longa } poll. lata, linearia, acuminata. Flores majusculi, 
13 poll. lati, caulium nudorum apices versus siti, singuli expla- 
nati, tenues, speciosi. Sepala elliptica, obtusa, alba spe 
pallide violaceo-tincta; mentum cum sepalo vix sequilongum, 
elongatum, rectum, gracile, acuminatum. Petala sepalis paullo 
majora, alba. Labellum integrum, spathulatum, apice lato 
truncatum, album (basi nervisque citrinis exceptis) ; carine 2, 
in labelli ungue connate, in lamina divaricate; nervi in 
lamin disco 2, elevati, paralleli. Colwmna brevis; pes longus ; 
venter profunde canaliculatum, apice incrassatum, margines 
incrassati antheram subquadratam superantes ; rostellum latum, 
retusum. Stigma magnum, rotundatum. 
Hab. Kedah Peak : alt. 3—4,000 feet, on small trees ! 
A pretty species, with fairly large thin, white flowers, more 
or less tinted with violet, except on the backs of the sepals. 
The lip has two ridges on the claw, which separate on the 
blade, and their edges meet in the middle line, so as to form 
a nectary or tube on the claw, and there are also two thickened 
nerves on the mid-line of the blade with a channel between. 
The column is greenish-white, with the upper part orange. 
It is evidently allied to the preceding species. 
