EASTERN COAST OF THE MALAY PENINSULA. 363 
DENDROBIUM HOsEI, n. sp. Caules longi, ultra bipedales, flexuosi, angulati, $ pollicem 
crassi, ezspitosi. Folia plura, lanceolata acuminata, acuta, apicibus valde inequa- 
libus, tenuia, superne levia, subtus striata, 3 pollices longa, pollicem lata, vaginis 
ore obliquo j-pollicaribus. Racemi e basi internodiorum $ pollicem longi, 3—4-flori, 
rhachidibus gracilibus. Bracteæ ovate, acute, 1%-роШсагев, ovarium cum pedicello 
&-pollieare. Sepala oblonga, ovata, acuta, lateralia quam posticum majora; men- 
tum angustum, rectum, apice paullulo dilatato, sepalis subsequale. Petala 
_ angus бога, oblonga, linearia, omnia alba. Labellum latum, panduratum, $ pollicem 
longum et ferme equilaterale, lobis lateralibus acutis, curvis, latis, medio reniformi 
retuso, margine sinuato, minute ciliato, nervis tribus elevatis, brunneis, parallelis, 
apicibus incrassatis, ochreum, nervis brunneis. Columna basi lata, superne attenuata, 
brunnea. Anthera ovoidea, alba, minute pubescentia, margine recto.  Stelidia 
erecta, acuta, viridia. Stigma rotundatum, album. 
On trees overhanging the Tahan River. Also sent from Borneo by Bishop Hose. 
Тһе specimens I collected in the Tahan River were nearly all monstrous, having three 
anthers to the flower, the lateral anthers being on long subulate filaments. 
It is difficult to refer this, as well as one or two allied species, to any of the sections 
of the genus in ‘Flora of British India, but in many points it is allied to the section 
Distichophylie. 
D. ($ DISTICHOPHYLLÆ) BIFARIUM, Lindl. 
On trees in the Tahan River. This is а common plant in the Peninsula. The 7 to 9 
close-set ridges on the lip, described by Sir Joseph Hooker, are visible only when the 
plant is dry ; when the plant is living the whole lip has а mealy appearance without any 
ridges. 
(D. uniflorum, Griff. Notul. iii. 805; Ie. Pl As. 303, which is quoted as a 
synonym of D. revolutum, Lindl., in the ‘Flora of British India, is a perfectly 
distinct species. The stems are smaller and more slender at the base, enlarging 
upwards. The flowers are eventually wide opened, and the sepals are not reflexed. 
The whole perianth is broader in proportion to its length. The lobes of the lip are 
larger and more spreading, the median one distinctly bilobed, not merely emar- 
ginate. The lip is white and not orange. In D. revolutum it is not possible to unroll 
the lip without breaking it, as it is so firmly rolled up beneath ; While in D. uniflorum, 
Griff., it is nearly flat, and can easily be spread out quite flat without breaking. The 
keels of the lip in the former run nearly parallel from the base of the lip towards 
the mid-lobe, while in the latter there are two short keels arising from the base, and 
no longer than the base of the mid-lobe, while the median ridge rises from the base of 
the mid-lobe and runs to the notch in the apex. The column, too, in D. revolutum has 
two thick conical ridges at the base, with a groove between them, which are absent in 
um, Lindl., I have received from Batu Pahat in Johore. 
. uniflorum. D. revolut ; | 
ннен uniflorum, Griff., is abundant on Mount Ophir, and I have also gathered it 
on trees at Maxwell’s Hill in Perak.) 
ЗЕ 
SECOND SERIES.—BOTANY, VOL. III. 
