DR. O. STAPF ON THE FLORA OF MOUNT KINABALU. 197 
RHODODENDRON RUGOSUM, Low, ex Hook. fil. in Hook. Ic. PL t. 885. 
From 7000 to 10,000 feet (Low, Burbidge; Haviland, 1139). 
The capsules are cylindric, about 6 lin. long, and densely pubescent. The valves 
separate to the base, but they do not twist or recurve. 
RHODODENDRON ACUMINATUM, Hook. fil. in Hook. Ie. Pl. t. 886. 
From 6000 to 8000 feet (Low). 
RHODODENDRON DURIONIFOLIUM, Beccari, ‘ Malesia,’ i. 202. 
Terrestrial or epiphytic, from 4000 to 7000 feet (Low, Burbidge ; Haviland, 1163, 1298). 
Distribution: North-west and North Borneo. 
A specimen collected by Low, and named R. polyanthum in MS. by Sir Joseph 
Hooker, has some leaves much larger than most of the other specimens have, the largest 
measuring 7 in. by 22, but there is no other difference. One of Dr. Haviland's 
branches has leaves of an intermediate size. 
RHODODENDRON LACTEUM, Stapf, n. sp. ($ Eu-Rhododendron). (Pl. XV. a. 1-2.) Frutex 
epiphyticus. Rami dense cinereo-tomentello-hirtelli. Folia alternantia vel verti- 
cillata, sessilia, lineari-oblonga, 1-1} poll. longa, }-} poll. lata, basi rotundata, 
apice obtusa, margine recurvo, coriacea, supra minutissime hirtella, sublucida, subtus 
im costá longius, ceterum brevissime sparseque hirtella, subuninervia. Inflores- 
centia terminalis, e gemma perulatà aphyllà, multiflora. Perulee minute sericeo- 
tomentelle. ^ Pedicelli 3-4 lin. longi, sericeo-hirtelli. Calyx obsoletus. Corolla 
alba, hypocrateriformis; tubus subrectus vel rectus, 14-2 poll. longus, villosulus ; 
limbus 5-partitus ; lobi oblongi, 8 lin. longi, 3-33 lin. lati, glabri. Stamina 10; 
filamenta tenuissima, ad 3 lin. exserta; anther ovate,)? lin. longs. Ovarium 
cylindricum, dense sericeo-pilosum, 3 lin. longum, 5-loculare ; stylus sericeo-pilosulus, 
sub apice glaber, 2 poll. longus; stigma dilatatum; lobulatum. 
Penokok, alt. 3500 feet (Haviland, 1295). | 
Allied to R. jasminiflorum, Hook. fil., but very distinct by the narrow leaves and the 
indumentum of the branches, leaves, and flowers. 
RHODODENDRON VERTICILLATUM, Low, ex Lindley, Journ. Hort. Soc. iii. (1848), 86; 
Hook. fil. in Hook. Ic. Pl. t. 884. 
Epiphytic or terrestrial on rocky banks of torrents, from 8000 to 11,500 feet (Low ; 
Haviland, 1147). 
Distribution: North-west Borneo (Mt. Penrisen) and North Borneo. 
RHODODENDRON BUXIFOLIUM, Low, ex Hook. fil. in Hook. Ic. PL t. 890. 
Found only at 12,000 feet, evidently very rare (Low; Haviland, 1080). 
The capsules are oblong, } in. long, and sparingly covered with small scales. Both 
collectors state that they found it on one place only, and both give the elevation at 
12,000 feet. 
SECOND SERIES.—BOTANY, VOL. IV. 9p 
