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288 BALFOUR—RHODODENDRON : 
crasso lanato persistente bistrato induta, strati superi pilis 
fibrillaribus coloratis complanatis elongatis iterum atque iterum 
acutangulatim ramosis ramis ultimis acutis, inferi pilis rosulatis 
ex ramis vesiculosis longis incoloratis constructis, costa media 
basi lata conspicua; petiolus ad 2 cm. longus ut rami vestitus. 
Gemmae florales magnae globosae; bracteae extimae crustaceae 
rotundatae ovatae carinatae apiculatae pilosulae sub anthesi per- 
sistentes, interiores ellipticae ad 3 cm. longae 1.5 cm. latae pilis 
longis albidis sericeae. Flores in umbellas breviter ramosas 
multifloras dispositi, rhachi circ. 1 cm. longa puberula ; pedicelli 
circ. 1.5 em. longi. Calyx parvus carnosulus glaber circ. 1 mm. 
longus lobis 5 rotundatis. Corolla alba roseo-suffusa? circ. 3 
em. longa intus puberula. Stamina ro inaequalia corolla brevi- 
ora. Ovarium sparsim floccosum; stylus glaber. Capsula recta 
circ. 1.7 cm. longa 5 mm. lata ab apice 5-valvata. Species phyli 
Rh. sphaeroblasti. 
S.W. Szechwan. Mu-li Mts. Lat. 28° 12’ N. 13-14,000 ft, 
Margins of rhododendron forests and on open alpine pasture. 
Shrub of 4-5 ft. Flowers probably white flushed rose. Forrest 
16,469. June ro18. 
S.W. Szechwan. Mts. around Mu-li. Lat. 28° 12’ N. Alt. 
12,000 ft. Open situations on the margins of forests. Shrub of 
4-5 ft. Inbud. Forrest 16,314, 16,428. June 1918. In fruit, 
16,994. Sept. 1918. In fruit. 17,109. Nov. 1918. In fruit. 
17,145. Oct. 1918. 
This Species nearest perhaps to Rh. globigerum, Balf. f. et 
Forrest in its phylum differs from that species in its purple non- 
glutinous buds. 
Rhododendron probum, Balf. f. ét Forrest. 
Frutex ad 2.5 m. altus. Rami stricti tenues primo glandulis 
stipitatis induti, demum plus minusve eglandulosi. Folia 
chartacea ovalia nec obovalia ad 8 cm. longa (petiolo atro- 
kermesino ruguloso glanduloso ad 1. 5 cm. longo incluso) 3.5 cm. 
lata, apice obtusa mucronulato-apiculata, basi rotundata vel 
trunculata; supra atro-viridis opaca glaberrima; subtus pur- 
pureo-glauca pilis caulifloris vestita. Umbella circ. 8-flora ; pedi- 
celli cire. 1.5 cm. longi glandulis rubris sessilibus dense vestiti. 
Calyx parvus ad 3 mm. longus 5-lobus; cupula dense glandulosa ; 
lobi cupulam aequantes membranacei glandulosi. Corolla alba 
emaculata evariculosa nune roseo-marginata circ. 4 em. longa. 
‘Stamina corolla gynaeceoque multo breviora ; filamenta puberula. 
_ Ovarium glandulis stipitatis ascendentibus dense vestitum ; 
_ Stylus glaber. Species Seriei Selensis, Rh. nanothamno, Balf. f. 
orrest 
