1916-17.] BOTANICAL SOCIETY OF EDINBURGH 199 



pass. Alt. 10,000 ft. Lat. 26° 12' N. In rhododendron 

 forest. Tree of 20-30 ft. Flowers crimson-rose with deep 

 crimson markings. G. Forrest. No. 5852, May 1910." 



This is our species, but it shows the ovary clad more or 

 less with solitary or floccose hairs. In this there is an 

 approach to Bh. aniliospliaeriim. 



Rhododendron irrorafum, Franch. in Bull. Soc. Bot. France, 

 xxxiv (1887), 280;^ Hemsl. in Journ. Linn. Soc, xxvi 

 (1889), 26; Bot. Mag. (1894), t. 7361. 

 Shrub reaching as much as 9 meters in height. New 

 shoots of the year about 3 mm. in diameter rufo-tomentose 

 densely clad with shortly-stalked clavate rufous glands 

 which soon fall ; branches a year old tawny and with 

 blackened gland-vestiges, ultimately a dirty grey and 

 decorticating. Foliage buds sticky oblong covered outside 

 with dark-brown crustaceo-coriaceous scale-leaves semi- 

 lunate or rotundate cucullate without a keel slightly ciliate 

 at tip with greasy short hairs, glabrous inside, glandular 

 and puberulous on back ; intermediate scale-leaves oblong 

 obovate ; inner ones membranous as much as 3-8 cm. long 

 yellowish ligulate-spathulate acute, outside and inside clad 

 with clavate rufous shortly-stalked glands with at the 

 tip a group of floccose greasy hairs ; young leaves revolute 

 in ptyxis, upper surface densely covered with an indu- 

 mentum of floccose hairs having a broad foot and long 

 or short thick stalk giving ofl" more or less greasy branches, 

 margin fringed with like flocks and with stalked clavate 



1 FraucKef s description runs : — 



Rhododendron irroratum, Franch. — Frutex circiter 6-pedalis, ramis et 

 ramulis glabris ; folia usque 5 poll, longa, nunc minora, breviter (7-10 

 mill.) petiolata, e basi attenuata lanceolata, apice acuta, mucronata, glauca, 

 rigida, glaberriuia, nervis secundariis usque 12-15 subtus prouiinulis ; 

 flores ad anthesin glouierati, niox laxi, albi, intus punctis fuscis confertis 

 irrorati, pedunculis 10-12 mill, longis glandulis tenuiluis adspersis ; 

 calyx inter miuimos, extus dense glandulosus, lobis obsoletis rotundatis ; 

 corolla extus glabra, iutus in parte inferiore puberula, hand magna (vix 

 ultra poUicaris), aperte campauulata, lobis 5 rotuudatis ; stamina 10, 

 inclusa, filamentis inferne brevissime ciliatis ; ovarium glandulis minutis 

 fuscis dense obtectum ; stylus gracilis stamina sujDerans, ad apicem usque 

 glandulosus. 



Yunnan, in silvis ad Pee-tsao-lo, supra Mo-so-yn, prope Lankong, alt. 

 2500 m., fl. 9 April (Delav. n. 2.352). 



Tres jolie espece, remarquable par sa teinte glauque et par ses tleurs 

 blanches abondamment mouchetees de brun. 



