180 WILSON EXPEDITION TO CHINA 



locality, June 1900 (Veitch Exped. No. 1128); without locality, A. 

 Henry (No. 6448). Western Szech'uan: Wa-shan, on rocks, alt. 

 1600-2000 m., October 1908 (No. 284^; bush 1-2 m., fruit yellowish) ; 

 Mupin, rocky places, alt. 1600-2300 m., October 1910 (No. 4647; 

 bush 2 m.). 



This plant is very common in rocky places throughout western Hupeh and 

 Szech'uan. The fruit is usually densely setose but this character varies some- 

 what; the leaves are dull green, not shining like those of the North American R. 

 Toxicodendron Linnaeus. 



Rhus trichocarpa Miquel in Ann. Mus. Lugd.-Bat. II. 84 (1866); 

 Prol. Fl. Jap. 16 (1866). — Engler in De Candolle, Monog. Phaner. 

 IV. 379 (1883). — Hemsley in Jour. Linn. Soc. XXIII. 148 (1886). — 

 Sargent in Garden & Forest, VI. 163 (1893); X. 384, fig. 49 (1897); 

 For. Fl. Jap. 34 (1894). 



Kiangsi: Ruling, thickets, alt. 1300 m., common, July 31, 1907 

 (No. 1691; bush 2-4 m. tall). Western Hupeh: Changlo Hsien, 

 woods, alt. 1000-1500 m., June 1907 (No. 3316; thin tree, 6 m. tall); 

 without locality, April 1900 (Veitch Exped. No. 194). Fokien: 

 without precise locality, April to June 1905, Dunn's Exped. (Herb. 

 Bot. Gard. Hongkong, No. 2825). Korea: Fusan, May 1906, U. 

 Faurie (No. 484). 



This ornamental species is common on the Lushan range in Kiangsi, but is 

 very rare in western Hupeh which is the western hmit of its distribution. It occurs 

 in the thickets and margins of woods usually as a large bush and less commonly 

 as a slender tree from 6 to 8 m. tall. The leaves are reddish when young and as- 

 sume brilUant tints in autumn. 



Engler (in Bot. Jahrb. XXIX. 433) states that he regards R. trichocarpa Miquel 

 as a hairy-fruited variety of R. vernicifera De Candolle. But the dehiscent drupe 

 and the absence of poisonous, varnish yielding sap, as well as other characters, 

 make it abundantly distinct from De CandoUe's species. 



Rhus sylvestris Siebold & Zuccarini in Abh. Akad. Miinch. IV. pt. 

 III. 140 (Fl. Jap. Fam. Nat. II. 32) (1846). — Miquel in Ann. Mus. 

 Lugd.-Bat. II. 84 (1866); Prol. Fl. 16 (1866). —Engler in De Can- 

 dolle, Monog. Phaner. IV. 396 (1883). — Hemsley in Jour. Linn. Soc. 

 XXIII. 147 (1886).— Diels in Bot. Jahrh. XXIX. 433 (1900).— 

 Shirasawa, Icon. Ess. For. Jap. I. 97, t. 58, fig. 1-17 (1900). 



Kiangsi: Kuling, thickets, alt. 1000 m., common, August 1, 1907 

 (No. 1687; bush 1.5-2.5 m.). Western Hupeh: Changyang Hsien, 

 woodlands, alt. 1000-1300 m., May and September 1907 (No. 160; 

 slender tree 6-10 m. tall, flowers white); Patung Hsien, woodlands, 



