ERICACEAE. — RHODODENDRON 507 



deciduis, calyce plerumque lobis omnibus ovatis subaequalibus 1.5 

 mm. longis, stylo glabro pallide purpureo. 



Western Szech'uan: north of Tachien-lu, Ta-p'ao-shan, moor- 

 lands, 4300 m., July 7, 1908 (No. 3467'') • 



Distinguished from the type chiefly by the more fastigiate habit, the nearly 

 equal calyx-lobes and the glabrous style. 



Rhododendron ramosissimum Franchet in Jour, de Bot. XII. 264 

 (1898). 



Western Szech'uan : vicinity of Tachien-lu, moorlands, alt. 3600- 

 4600 m., June, July and October 1908 (Nos. 3468, 3469; bush 0.3-1 m., 

 tall, flowers dark purple). 



Our specimens differ from Franchet's description in the slightly pubescent 

 mouth of the corolla-tube. In No. 3468 the leaves are often oblong-lanceolate; 

 and the flowers are either solitary or in pairs. Franchet compares this species 

 with his R. intricatum; to us it would appear more closely allied to R. polycladum 

 Franchet. 



Group c. 



Stamens nearly as long as the corolla; style longer than the stamens; corolla 

 pink or purple, more or less villose at the mouth; flowers solitary or few. Leaves 

 obtuse or obtusish, generally about 1 cm. long.^ 



Rhododendron verruculosum Rehder & Wilson, n. sp. 



Frutex 60-90 cm.altus,ramosissimus ramis erectisv. adscendentibus; 

 ramuli hornotini breviter pilosi et lepidoti squamulis fuscis partim 

 breviter stipitatis, vetustiores decorticantes; gemmae ovoidcae, 

 perulis paucis rotundatis extus in medio dorsi lepidotis ceterum 

 minutissime puberuhs albo-cihatis. Folia coriacea, ovalia v. elliptico- 

 ovata, apice rotundata, basi late cuneata v. rotundata, margine 

 revoluta, 7-15 mm. longa et 5-8 mm. lata, supra atroviridia, squamulis 

 flavidis lucidis conspersa, subtus squamulis non contiguis fuscis 



* In this group also belongs the following species : 



Rhododendron fastigiatum Franchet in Bull. Soc. Bot. France, XXXIII. 234 

 (1886). — Hemsley in Jour. Linn. Soc. XXVI. 23 (1889). — Hemsley & Wilson 

 in Kew Bull. Misc. Inform. 1910, 117. 



Rhododendron capitatum Franchet in Bull. Soc. Bot. France, XXXII. 9 (non 

 Ma.ximowicz) (1885). 

 Western Szech'uan: moorlands around Tachien-lu, alt. 3300 m., June 1004 

 (Veitch Exped. No. 3936). Shensi: Tai-pei-shan, alt. 3100 m., July 1910, W. 

 Purdom (No. 440). 



In No. 3930 the corolla is sparingly lepidote without. In both specimens some 

 flowers have the style hairy near the base, in others it is glabrous. 



