232 WILSON EXPEDITION TO CHINA 



RHAMNUS L. 



Rhamnus crenatus Siebold & Zuccarini in Abh. Akad Munch. IV, 

 pt. II. 146 (Fl. Jap. Fam. Nat. I. 38) (1845). — Maximowicz in Mem. 

 Acad. Sci. St. Petersbourg, s6t. 7, IV. No. XI. 18 (Rhamn. Or.-As.) 

 (1866). — Schneider, III. Handb. Laubholzk. II. 269, fig. 186 p-q, 

 185 f-gi (1909). 



Kiangsi: alt. 1600 m., abundant, July 28, 1907 (No. 1684; bush 

 0.25-1.25 m., flowers white). Western Hupeh: Changyang Hsien, 

 thickets, alt. 1000-1300 m., July and September 1907 (No. 137; bush 

 1.5-2.5 m., flowers whitish, fruit black); Changlo Hsien, thickets, alt. 

 600-1300 m., June and July 1907 (Nos. 3327, 3329^; bush 3-5 m., 

 flowers greenish, fruit black); Patung Hsien, thickets, alt. 600-1300 

 m., June and July 1907 (No. 3329; bush 3 m., flowers greenish-white, 

 fruit black); Hsing-shan Hsien, thickets, alt. 1000-1300 m., June and 

 July 1907 (No. 3330; bush 1.5-3 m., flowers greenish, fruit black); 

 Changyang Hsien, June and July 1900 (Veitch Exped. Nos. 1135, 

 1135=*); without locality, A. Henry (No. 6058). Eastern Sze- 

 ch'uan : Wushan Hsien, side of streams, alt. 1000-1300 m., June and 

 September 1907 (No. 3328; bush 1-2 m., flowers greenish, fruit black). 

 Chekiang : vicinity of Ningpo, 1908, D. Macgregor. Fokien : with- 

 out precise locality, Dunn's Exped., April to June 1905 (Herb. Bot. 

 Gard. Hongkong, Nos. 2488, 2495). 



R. crenatus, the type of which is Japanese, seems to be a widely spread and 

 rather variable species and I cannot find any real differences between the Japanese 

 specimens and those from central China. The shape of the leaves and the amount 

 of pubescence are very variable and it would require a special study to decide 

 whether all these forms belong to one species or not. 



Rhamnus heterophyllus Oliver in Hooker's Icon. XVIII. t. 1759 

 (1888). — Pritzel in Bot. Jahrb. XXIX. 459 (1900). 



Rhamnus Cavaleriei L6veille in Fedde, Rep. Sp. Nov. IX. 326 (1910). 



Western Szech'uan : thickets in rocky places, alt. 1000-1300 m., 

 July, October and November 1908 (Nos. 1013, 1242; bush 1-1.5 m., 

 branches usually decumbent, fruit black); Kuan Hsien, thickets, alt. 

 1300-1600 m., October 1910 (No. 4186; bush 1.5-2 m., fruit black). 

 Kweichou: near Pin-ne, August 1, 1905, J. Cavalerie (No. 2477, 

 type of R. Cavaleriei; shrub 1.9 m. tall). 



I cannot find any marked difference between any of the numbers cited above. 

 Unfortunately neither Oliver nor L^veille lay stress upon the persistent, sub- 

 spinose stipules, which, I think, are a rather important character. R. heterophyllus 



