362 МЕ. Н. №. RIDLEY ON THE FLORA OF THE 
DENDROBIUM ($PEDILONUM) PYROPUM, n. sp. Caules circiter pedales, graciles, sub- 
flexuosi, internodiis pollicaribus, haud compressis, costatis. Folia lanceolata acuta, 
valde inæqualiter biloba, lobo uno 4—4 pollicem longiore acuto (siccitate 6-costata), 
3—4 pollices longa, 3-1 pollicem lata, vaginis striatis pollicaribus, ore integro. 
Racemi penduli a parte superiore caulium nudorum, 2-3 flori, circiter pollicares, 
rhachide tenui purpurea. Bracteæ parvæ, ovatæ. Flores magni, aurantiaci. Sepala 
lanceolata subacuta ; petala ferme æqualia, pollicaria. Labellum spathulatum, basi 
angusta lineari, apice rotundato, denticulato, crispo, linea mediana elevata a basi, 
callo nullo, omnia aurantiaca, punctis kermesinis ad basin labelli. Columna 
flavescens, superne dilatata, margine postico clinandrii elevato rotundato, filamento 
triangulari, clinandrio profundo; rostellum linguiforme, majusculum, apice rotun- 
dato. Anthera ovoidea, apice obtuso, margine lato, rotundato, integro. Stigma 
basi dilatatum, superne attenuatum. 
On mossy trees along a stream in the Tahan Valley. 
This is a charming plant, the flowers being of a very bright orange. 
D. CRUMENATUM, Sw. 
Common on trees in and around Pekan. 
D. TUBERIFERUM, Hook. f. 
This is a local plant, but widely scattered. I have met with it several times in | 
Singapore and at Kwala Pahang. The Chittagong plant, doubtfully referred to this 
species by Sir J. Hooker, is certainly different, and as it has been confused with it, it 
will be as well to give a complete new description of the Malayan species. 
Caules plures erecti, congesti, circiter pedales, raro ramosi, purpurei, basibus (pollicaribus) 
angustatis, dein subito dilatatis (internodii duobus), ovalibus compressis, 14 pollices 
longis, pollicem latis, 2 pollicem crassis; parte superiore caulis gracili, complanata. 
Folia in caulibus lateralibus brevibus elliptica ovata, coriacea, apice minute 
inequaliter bilobo, atro-viridia, marginibus rubris, rarius omnino rubro-purpureis. 
Flores pauci іп caulibus nudis dissiti, fugaces, nutantes, Из D. erumenati similes, 
sed minores. Sepalum posticum lanceolatum acutum, album, linea media et 
apice kermesino-violaceis, 4-pollicare; lateralia triangularia acuta, mentum breve, 
quam sepala paullo longius, apice gibbo. Petala lanceolata acuta, sepalis breviora, 
alba, linea mediana violacea. Labellum paullo longius, lobi laterales curvi rotun- 
dati, albi, roseo-venosi, lobus medius angustus, lanceolatus acutus, ciliatus, apice 
decurvo, discus violaceo-roseus, marginibus et ciliis albis; callus retusus flavescens 
inter lobos laterales. Columna gracilis, alba. 
D. ($ BREVIFLORES) HERCOGLOSSUM, Reichb. f. 
Pulau Tiuman (ТУ, Nanson). 
D. ($ PEDILONUM) sECUNDUM, Wall. 
Abundant on trees at Kwala Pahang 
