320 WILSON EXPEDITION TO CHINA 



This bush Rose is abundant by waysides and in semi-arid river-valleys through- 

 out the warmer parts of western Szech'uan. In the neighborhood of Kiating Fu 

 and on the Chengtu Plain it is commonly used as a hedge-plant. Focke's R. 

 Forrestii is based on specimens having small leaves; our No. 3529 Veitch Exped. 

 is a similar plant, and this character is inconstant. Its obovate rounded to nar- 

 rowly ovate, acute or abruptly acuminate leaflets and less sharply acute serratures 

 and the absence of pubescence distinguish it from the Japanese R. Roxburghii, 

 var. hirtula Rehder & Wilson, n. comb. {R. microphylla, /3 hirtula Regel). It is 

 this Japanese variety with single flowers which is in cultivation and which is figured 

 by Hooker f. as R. microphylla in the Bot. Mag. CVII. t. 6548 (1881). This var. 

 hirtula is spontaneous in central Hondo, and Wilson has collected it at 1000 m. 

 alt. on the northern slopes of Fuji-san, Japan. 



Rosa chinensis Jacquin, 06s. Bot. III. 7, t. 55 (1768). — K. Koch, 

 Dendr. I. 272 (1869). — Willmott, Gen. Rosa, I. 79, t. (1911). 



Rosa sinica Linnaeus, Syst. Veg. ed. 13, 394 (forma calyce monstroso) (1774). 



Rosa indica Loureiro, Fl. Cochin. 323 (non Linnaeus) (1790). — Aiton, Hort. 

 Kew. ed. 2, HI. 266 (1811). — Lindley, Ros. Monog. 106 (1820). — Crepin in 

 Bull. Soc. Bot. Belg. XL 23 (Prim. Ros. Moiiog. 139) (1872), XIV. 168 

 {Prim. Ros. Monog. 372) (1875). — Hooker f., Fl. Brit. Ind. II. 364 

 (1878). — Hemsley in Jour. Linn. Soc. XXIIl. 249 (1887). — Dunn & 

 Tutcher in Kew Bull. Misc. Inform, add. ser. X. 96 (Fl. Kwangtung & 

 Hongk.) (1914). 



Rosa nankinensis, Loureiro, Fl. Cochin. 323 (1790). 



Rosa semper flor ens, ^ Lawrence, Roses, t. 26 (1799). 



Rosa bengalensis, ^ chinensis Persoon, Syn. PI. II. 50 (1807). 



Rosa Indica vulgaris Thory in Redoute, Roses, I. 51, t. (1817). — Lindley, Ros. 

 Monog. 106 (1820). — Regel, Tent. Ros. Monog. 74 (1877); in Act. Hort. 

 Petrop. V. 358 (1878). 



Western Hupeh: Changlo Hsien, cultivated, June 1907 (No. 

 361 1 ; rambling bush 2 m. tall, flowers red). Yunnan: Mengtsze, 

 mountains southeast, alt. 1600 m., cultivated, A. Henry (No. 11272). 



This Rose is commonly cultivated in the eastern and southeastern provinces of 

 China, but is rarely cultivated in the central and western provinces. 



Rosa chinensis, f. spontanea Rehder & Wilson, n. f. 

 A typo floribus simplicibus recedit. Est forma spontanea et typum 

 phylogeneticum speciei constituit. 



Rosa indica Hemsley in Jour. Linn. Soc. XXIII. 249 (non Linnaeus, nee 

 Loureiro) (1887), quoad specimen Henryi. — Focke in Bot. Jahrb. XXIX. 

 405 (1900). — Henry in Card. Chron. ser. 3, XXXI. 438, fig. 170 (1902). 



North-central Szech'uan: Pa-chou, sandstone ravines, alt. 

 1000 m., July 1910 (No. 4649; bush 1-2 m. tall, spontaneous). 

 Northwestern Szech'uan: Shih-ch'uan Hsien, roadside thickets, 

 alt. 800-1000 m., August 1910 (No. 4649=*; bush 1.5-2 m. tall, spon- 

 taneous). Western Hupeh: near Ichang, San-yu-tung glen, A. 

 Henry (No. 1151). 



