ERICACEAE. — RHODODENDRON 521 



longo subito in limbum patentem ampliato extus glabro intus sparse 

 villoso, lobis late ovatis obtusis 1.3-1.5 cm. longis; stamina 10, in- 

 aequalia, longiora corollam aequantia v. ea paullo breviora, filamentis 

 complanatis infra medium sparse villosis, antheris ochraceis; ovarium 

 conicum, circiter 5 mm. longum, dense lepidotum; stylus leviter 

 curvatus, glaber, 3 cm. longus, corollam paullo superans, stigmate 

 paullo incrassato leviter lobato atropurpureo. Capsula desideratur. 

 Western Szech'uan: west and near Wen-ch'uan Hsien, thickets 

 and margins of woods, alt. 2500-3000 m., July 1908 (No. 3422). 



This species is allied to R. yanthinum Bureau & Franchet which has verruculose 

 branchlets, leaves lepidote on both surfaces and a rather differently shaped corolla 

 sparsely lepidote on the outer surface. 



Rhododendron polylepis Franchet in Bull. Soc. Bot. France, XXXIII. 

 232 (1886); in Noiw. Arch. Mus. Paris, ser. 2, X. 50 (PI. David. II. 

 88) (1887). — Hemsley & Wilson Kew Bull Misc. Inform. 1910, 115. 



Rhododendron Harrovianum Hemsley in Gard. Chron. XLVII. 4 (1910); in 

 Bot. Mag. CXXXVI. t. 8309 (1910). — Schneider, III. Handb. Laubholzk. 

 II. 1043, fig. 615 h-i (1912). 



Western Szech'uan: west and near Wen-ch'uan Hsien, cliffs, 

 alt. 2500 m., June and October 1908 (No. 1205; bush 2-2.5 m. tall, 

 flowers purple); Tachien-lu, thickets, alt. 3000 m., June and October 

 1908 (No. 1207"; bush 1-3 m. tall, flowers purple); Wa-shan, wood- 

 lands, alt. 2300-2600 m., October 1908 (No. 1221; bush 2.5 m. tall); 

 same locality. May 1904 (Veitch Exped. No. 3949 and seed No. 1857); 

 Mupin, thickets, alt. 2500-2600 m., June and November 1908 (Nos. 

 122 1'', 1221''; bush 2-4 m. tall, flowers purple); same locality, alt. 

 2000-3000 m., October 1910 (No. 4278; bush 1-3 m. tall, flowers 

 purple); near Mao-chou, Chiu-ting-shan, cliffs, alt. 2500-3000 m., 

 May 23, 1908 (No. 3420; bush 2-3 m. tall, flowers dark purple); 

 Ching-chi Hsien, Ta^hsiang-ling, thickets, alt. 2300 m.. May 1908 

 (No. 3450; bush 1.5-3 m. tall, flowers purple); Ching-chi Hsien, Fei- 

 yueh-ling, thickets, alt. 2600 m. (No. 3451; bush 1.5-3 m. tall, flowers 

 purple). Yunnan: Tse-kou, valley of upper Mekong, Pere T. Mon- 

 heig (No. 6). 



This is an exceedingly common species, varying considerably in the color of 

 flowers, length of the stamens and size of the leaves. We cannot find a single 

 character by which to separate R. Harrovianum Hemsley from it. Monbeig's No. 6 

 has unusually large flowers with included stamens and possibly represents a distinct 

 variety. Our material, however, is insufficient to decide this. 



