ROSACEAE. — ROSA 331 



Western Szech'uan: near Mao-chou, valley of Min River, alt. 

 1300-1600 m., May 25, 1908 (No. 3605; bush 1-2.5 m. tall, flowers pale 

 to bright yellow). 



This is the only species of Rose with yellow flowers known from western China. 

 Though very local it is abundant in the region mentioned above, where a relatively 

 warm and dry climate prevails. It commences to flower very early in May and by 

 the end of the month the flowers have gone; the fruit ripens in July and August 

 and falls at once. The fruits are dark scarlet, glabrous, strongly depressed-globose, 

 on slightly reddish pedicels 0.5-1.5 cm. long and crowned with the persistent 

 calyx-lobes. The prickles vary remarkably in number; some shoots have no prickles 

 and only a few setae, others have abundant setae and a few prickles only slightly 

 dilated at base; while others are densely covered with connate, decurrent, thin, 

 translucent crimson prickles 1.5-2 cm. long with numerous setae between. All 

 forms can be found on the same bush. 



Crepin enumerates specimens collected by Pere Hugh Scallan under bis R. 

 xanthina Lindley, but his remarks leave no doubt that the Rose is R. Hugonis 

 which was raised at Kew from seed sent to the British Museum by Father 

 Hugh. It was also raised from seed sent by Purdom under No. 534 either from 

 Shensi or Kansu to the Arnold Arboretum. 



Rosa omeiensis Rolfe in Bot. Mag. CXXXVIII. t. 8471 (1912). — 

 Bean, Trees & Shrubs Brit. Isl. II. 438 (1914). 



Rosa sericca Crepin in Bull. Soc. Bot. Belg. XIV. 151 (non Lindley) (1875), 



quoad specimina Przewalskii; XXV. Compt. Rend. 9 (1886); in Bull. Soc. 



Bot. Ital. 1897, 234. — Diels in Not. Bot. Gard. Edinburgh, VII. 238 {PI. 



Chin. Forrest.) (1912). 

 Rosa sericea, f. glabrescens Franchet, PI. Dclavay. 220 (1890). 

 Rosa sericea, f. intermedia Franchet, 1. c. (1890). 

 Rosa sericea, f. denudata Franchet, 1. c. (1890). 

 Rosa sericea, f. inermis eglandulosa Focke in Not. Bot. Gard. Edinburgh, V. 



69 {PI. Chin. Forrest.) (1911). 

 Rosa sericca, f. aculeata eglandulosa Focke, 1. c. 70 (1911). 

 Rosa Sorbus L6veille in Fedde, Rep. Spec. Nov. XIII. 338 (1914). 



Western Hupeh: Fang Hsien, upland thickets, alt. 2000-3000 

 m., May 31, August 1907 (No. 179; bush 2-4 m. tall, flowers white, 

 fruit red); same locality, June 1900 (Veitch Exped. No. 2094; bush 

 2 m. tall); without locality, A. Hejiry (No. 6782). Western Sze- 

 ch'uan: west of Kuan Hsien, Niu-tou-shan, woodlands, alt. 2600- 

 3600 m., June 20, September 1908 (No. 959; bush 3-5 m., flowers 

 white, fruit scarlet) ; Mupin, thickets, alt. 2300-3300 m., June 1908 (No. 

 959"; bush 2-5 m. tall, flowers white); Wa-shan, woodlands, alt. 2000- 

 3600 m., June, July and September 1908 (Nos. 3596, 959''; bush 2-5 m. 

 tall, flowers white, fruit red); same locality, A. E. Pratt, ex A. Henry 

 (Nos. 8947, 8961); Tachien-lu, alt. 3000-3600 m., October 1910 (No. 

 4163; bush 3-6 m. tall); west and near Wen-ch'uan Hsien, alt. 1600- 



