208 JOURNAL OF THE ARNOLD ARBORETUM [vol. v 



Rosa Prattii Hemsley in Jour. Linn. Soc. xxix. 307, fig. 30 (1892). 



Shensi: Tai pei shan, W. Purdom, no. 1124, 1910. 



Distribution: also Szechuan. 



The Shensi specimen differs from the typical form in its very bristly 

 calyx and pedicels, in the rather more dilated stipules and the solitary 

 flowers. 



Wil 



Mag. cxxxi. t. 8004 (1905).— Rehder 



Rosa xanthina Cr<5pin in Bull. Soc. Bot. Ital. 1897, 223; synon. exclud. 

 Non Lindley. 



Shensi: various localities, G. Giraldi (ex Crepin, 1. c). — See also Hems- 

 ley, 1. c. 



Distribution: also Szechuan. 



I have seen none of Giraldi's specimens, but a cultivated plant (in Herb. 

 Zabel) raised from seed collected by Giraldi is undoubtedly R. Hugonis 

 which probably extends north as far as the southern slope of the Tsin 

 ling shan. In the absence of vigorous shoots showing the presence of 

 bristles it is often very difficult to distinguish R. Hugonis from R. xanthina 

 and one has to depend on the generally more sharply serrate and more 

 numerous leaflets glabrous or nearly so even when young, and on the 

 more slender-pedicelled paler colored flowers of R. Hugonis. 



Rosa xanthina Lindley, Monog. Ros. 132 (1820).— Hemsley in Jour. 



Linn. Soc. xxm. 254 (1887).— Bretschneider, Hist. Eur. Bot. Discov. 



China, 861 (1898).—? F. N. Meyer in U. S. Dept. Agric. Bur. PL Indust. 



Invent. Seeds PL Imp. xm. 170, no. 21620 (1908).— Rehder & Wilson in 



Sargent, PL Wilson, n. 342 (1915).— Hers in Jour. N. China Branch R. 



As. Soc. liii. 115 (1922); Liste Ess. Lign. Honan, 26 (1922). 



Rosa pimpinellifolia Bunge in M&n. Div. Sav. Acad. Sci. St. P6tersb. n. 

 100 (Enum. PL Chin. Bor. 26) (1833).— Maximowicz in M6m. Div. Sav. 

 Acad. Sci. St. Pftersb. ix. 471 (Ind. Fl. Pekin.) (1859).— Hemsley in Jour. 



Linn. Soc. xxm. 253 (1887).— Bretschneider, Hist. Eur. Bot. Discov. 

 China, 333 (1898).— Non Linnaeus. 

 Rosa sp. F. N. Meyer in U. S. Dept. Agric. Bur. PL Indust, Invent. Seeds 

 PL Imp. xii. 37, no. 17469 (1907). 



Rosa xanthinoides Nakai in Tokyo Bot. Mag. xxxn. 218 (1918); in FL Sylv. 

 Kor. vn. 33, t. 6 (1918). 



Chili: Peking, in gardens, F. N. Meyer, nos. 67 and 68, 1906 (only 

 cuttings or plants sent and grown by the Department of Agriculture). — 

 See also Meyer, 1. c. (1907), Bunge, L c, Maximowicz, 1. c, and 



Hemsley, 1. c. 



Shantung: Shushan, F. N. Meyer, no. 745 a , August 23, 1907 (seeds 

 only, plants with semi-double flowers raised from the seed and growing 

 at the Arnold Arboretum). — See also Meyer, 1. c. (1908) and Rehder & 

 Wilson, 1. c. 



Honan: cultivated (ex Hers, 1. c). 

 Distribution: also cultivated in Korea. 



