a 
APOSTASIACEA OF THE MALAY PENINSULA. 231 
This Platyclinis was nearly out of flower at the time of my 
visit to Kedah Peak in August; but I succeeded in finding 
some few sprays of flowers and half-ripe fruits. The flower is 
nearly white. The lip is remarkably narrow, and the lateral 
lobes very obscure. -In the dried specimens, the lip is coiled up 
at the end, like a butterfly’s tongue. The narrow petals, sepals, 
and lip are distinctive marks of the species. 
PLATYCLINIS GRACILIS, Hook. f., Fl. Brit. Ind., v. p. 708, et 
Ic. Pl., t. 2016. 
Hab. Perak : King’s Collector. 
P. tineartrouiuM, Ridl. Dendrochilum linearifolium, Hook. 
f., Fl. Brit. Ind., v. p. 782, et Ic. Pl., t. 1859. 
Hab. Malacca: Mt. Ophir! 
Perak : Scortechini; Batang Padang, Wray. 
Common on trees on Mount Ophir at 4,000 feet elevation, 
flowering in May. The Ophir plant is evidently that figured 
in the Icones, from Perak, and seems to me certainly a 
Platyclinis. 
DENDROBIUM, Swartz. 
This large genus is by no means easy to break up into 
satisfactory groups; the best characters for classifying the 
species appear to be those of the stem. The genus can first be 
broken up into two series: one with the primary stem 
branched and usually extensively developed ; the other, with 
a short unbranched primary stem. ‘'o the first series belong 
Sarcopodium, with an elongate creeping rhizome throwing up 
two-leaved, 7.e., binodal pseudo-bulbs, such as D. Treacherianun, 
Reichb. f., D. geminatum, Lindl.; and among aberrant forms 
D. funiforme, Blume, must be placed here. D. longicolle, Lindl., 
must be excluded, as it has no creeping rhizome, or at least 
it is exceedingly short; it is evidently nearest to D. hetero- 
tdewm, Blume, and Cadetia angustifolia, Blume, and may be 
classed as a Cadetia. This name has been used (FI. Brit. Ind.) 
for a section for which I propose to retain the old name of 
Desmotrichum, a generic name given by Blume for several of the 
Species included in it, such as .Desmotrichum fimbriatum and 
D. convexum. This section is a very distinct one in possessing 
an extensively branched stem, with usually a creeping primary 
