56,4 Ames and Quisumbing: Philippine Orchids, V 455 
This, like the former variety, is very rare and beautiful, hav¬ 
ing been seen by the junior author in Manila gardens but once 
during his many years of study of orchids. It is characterized 
by having white flowers with the throat of the labellum dark 
purple. This particular variety has also been reported from 
the Malay Archipelago. 
DENDROBIUM CERINUM Reichb. f. Plate 1, fiss. 4 and 5; Plate 3, figs. 1 to 10; Plate 
9, fig. 2. 
Dendrobium cerinum Reichb. f. in Gard. Chron. II 12 (1879) 554. 
Dendrobium cerinum, n. sp.—Caule teretiusculo demum multum sulcato 
calamum aquilinum crasso; racemis brevibus paucifloris densifloris; sepalo 
impari ovato oblongove acutiusculo; sepalis lateralibus triangulo semi- 
ovatis obtuse acutis, in mentum teretiusculum apice abrupte aeutum ex- 
tensis; tepalis ovatis obtuse acutis; labelli ungue cum cornu retrorso in 
medio, lamina subrotunda laevi, antice minute dentieulata, columna cla- 
vata—Flores cerini, nitidi, ochroleuci, brunneo lavatis. Lineae fuscae ra- 
diantes in basi laminae labelli.—Ex aff. Dendrobii sanguinolenti; labello 
tamen ac mentum multum recedens. Ex archipelago Sondaico viv. misit 
el. Burbidge ad dominos Veitch. 
This is very near the well-known buff-coloured variety of Dendrobium 
sanguinolentum. The stem is half as thick as one’s little finger, and much 
furrowed when old. It bears dense racemes of from four to six flowers, 
whose chin is thinner and abruptly acute, not thick and retuse as in the 
compared species. Ovaries and pedicels light rose. Sepals and petals 
light yellowish-ochre coloured, shaded with brown. The central rib of 
the mentum is light purple. The lip is just alarming. It mimics that of 
Dendrobium sanguinolentum, having a strong retrorse tooth on its claw. 
The blade, however, shows the best differences; it is oblong, not three-lobed, 
and its border, in lieu of being totally entire, shows numerous minute 
teeth on its anterior edge. The colour is light ochre with radiating brown 
lines at the transition of the blade into the claw. The whole flower is 
of very firm texture, and shining as if made from wax. The lip has 
sometimes a certain tendency to become three-lobed. I have to thank for 
materials Messrs. Veitch, who tell me that the plant was collected in the 
Malayan Archipelago by Mr. Burbidge. It flowered in July and Sep¬ 
tember. H. G. Reichenbach f. 
Stems terete, aggregated, subpendulous, fusiform, 4.5 to 17 
cm long, 5.5 to 10 mm in diameter at the widest portion, angled 
and sulcate when dry, the nodes 1 to 2.5 cm distant. Leaves 
distichous, elliptic-lanceolate or oblong-lanceolate, 6 to 11 cm 
long, 1.8 to 3.2 cm wide, nervose, membranaceous, pale green, 
narrowed to the acute apex. Leaf sheaths green, membrana¬ 
ceous, deciduous on the lower part of the plant. Racemes short, 
pendulous, laxly few-flowered, up to 4.5 cm long, 2- to 3-flowered. 
Flowers 3.5 to 3.8 cm long, 3.5 to 3.8 cm across, odorless, with 
slightly inflexed spur. Bracts pellucid, minute, membranaceous, 
