98 MR. H. N. RIDLEY ON PLANTS 
RHODODENDRON HAMELIIFLORUM, Wernham, sp. nov. 
Fruticulus ramulis novellis dense lepidotis. Folia alternantia vel subverticillata, 
crasse coriacea, obovato-orbicularia, vix 1 cm. x 8 mm. excedentia, supra nitentia, 
 eosta centrali valde impressa, subtus discoloria, sepe punctata; apice sepius 
emarginata; petiolus glaber, distinctus, ad 2:5 mm. longus. Flores subsolitarii; 
pedicelli graciles, ea. 1:5 mm. longi, dense lepidoti. Calyx rectus. Corolle extus 
basin versus + obsolete lepidotze tubus cylindricus, 1:4-1-7 cm. longus, ca. 5 mm. 
latus; lobi rotundati, vix 5 mm. longi. 
Camps XI to XII, 8300 to 11,000 ft. 
Allied to R. Giulianettii, Lauterb., but our species has smaller leaves and shorter 
corolla-tube. 
RHODODENDRON MINIMIFOLIUM, Wernham, sp. nov. 
Fruticulus ramulis dense ferrugineo-lepidotis. Folia verticillatim congesta, crassa, 
elliptica, margine plana nec revoluta, ad 6 mm. x 4 mm., supra nitentia, subtus 
rugosulo-striata, lepidoto-punctata, discoloria; venæ omnino occluse. Flores rosei, 
sepius solitarii; pedicelli dense lepidoti, 8 mm. longi. Corolle tubus late cylin- 
drieus, 7-8 mm. longus, 4-5 mm. latus, extus lepidotus; lobi suborbiculares, 
4:5 mm. x 3'3 mm., glabri. 
Camps XI to XII, 8300 to 11,000 ft. 
Allied to R. Pulleanum, Koorders, but distinguished by the shorter, broader corolla- 
tube and relatively longer corolla-lobes. 
RHODODENDRON NUBICOLA, Wernham, sp. nov. 
Frutex. Folia crasse coriacea, verticillata, elliptica, utrinque breviter acuminata, 
margine revoluta, 4:5-8 cm. x 1:832 cm., apice obtusissima, utrinque glaberrima, 
supra nitentia, subtus valde flavo-discoloria, sæpe punctata; vene secundariz supra 
subimpresse, subtus prominule, utrinque ca. 6, nonnunquam occlusz; petiolus: 
1 cm. longus, glaber. Flores pauci (2-4) in umbella; pedicelli graciles, ca. 1 em. 
longi, sparsissime pubescentes, obscure lepidoti. Corolle extus glabre tubus 
2-2:5 em. longus, basi ad 5-6 mm. latus, insuper in ore vix ad 1 cm. ampliatus; 
lobi ovales, rotundati, ca. 1:4 cm. longi. Filamenta glabra, 2:8 em. longa. Ovarium 
pubescens, 6 mm. longum ; stylus 1:8 em. longus, insuper glaber. 
Camps XI to XIII, 8300 to 10,500 ft. ! 
Distinguished from R. culminicolum, F. Muell, its nearest ally, by the diferent 
relative lengths of the corolla-tube and lobes. 
RHODODENDRON OREADUM, Wernham, sp. nov. 
Frutex glaber; ramuli compressi, striati. Folia verticillata, subcoriacea, elliptica vel - 
oblonga, 10-14 em. x 45-5 cm., utrinque angustata, subacuta; venæ secundarie — 
supra impresse, subtus prominule, utrinque 9-12; petiolus ca. 1 cm. longus, - 
rugosulus. Flores capitati, subsessiles. Corolle glabre tubus 4:5 cm. longus, 
