284 WILSON EXPEDITION TO CHINA 



The plant collected by Piasezkii in Shensi and referred by Maximowicz according 

 to Hemsley in Jour. Linn. Soc. XXIII. 57 (1886) to Xylosma senticosum Hance is more 

 probably Xylosma racemosum, var. pubesce?is, since it is unlikely that a subtropical 

 plant would be found so far north. Both agree in having pubescent branches, but 

 the leaves in Hance's plant are described as only 6-8 lines long. 



Xylosma Dunnianum L6veill6 in Fedde, Rep. Nov. Sp. IX. 455 (1911) apparently 

 belongs to some other genus since he describes petals and says they are "twice as 

 long as the sepals." 



Two other species of Xylosma occur in Yunnan: 

 Xylosma longifolium Clos in Ann. Sd. Nat. ser. 4, VIII. 231 (1857). — Hooker 

 f., Fl. Brit. Ind. I. 194 (1872). 

 Yunnan: Mengtze, alt. 1500 m., A. Henry (Nos. 9901, 9901* 9901"); Szemao, 

 alt. 1600 m., A. Henry, (No. 12635); Talang, alt. 1600 m., A. Henry (13334). 



Xylosma controversum Clos in Ann. Sci. Nat. s6r. 4, VIII. 231 (1857). — Hooker, 

 f., Fl. Brit. Ind. I. 194 (1872). 

 Yunnan: Szemao, alt. 1300-2000 m., A. Henry (Nos. 11884", 12757). 



CARRIEREA Franch. 



Carrierea calycina Franchet in Rev. Hort. 1896, 497, fig. 170. — 

 Diels in Bot. Jahrh.XXlX, 478 (1900). — Bean in Kew Bull. Misc. 

 Inform. XXII. 353 (1909). 



Western Szech'uan: Mupin, side of streams, alt. 600-1100 m., 

 June and November 1908 (No. 1212, in part; tree 6-10 m. tall, 1-1.60 

 m. girth, flowers white) ; Niu-tou-shan, west of Kuan Hsien, alt. 1600 

 m., June 1908 (1212, in part; tree 6 m. tall, 30 cm. girth, flowers white); 

 Hung-ya Hsien, side of streams, alt. 1000 m., September 1908 (No. 

 12 12, in part; tree 6-10 m. tall, 1-2 m. girth) ; without precise locality, 

 ravines, 1300 m., July 1903 (Veitch Exped. No. 3227); Mt. Omei, 

 June 1904 (Veitch Exped. No. 4752). Western Hupeh: without 

 precise locality (Veitch Exped. No. 1104). 



This handsome tree is very rare in western Hupeh, but common in western 

 Szech'uan, especially by the side of woodland streams up to 1200 m. altitude. 

 Whilst not forming a tall or even large tree, the much-branched and flat head is 

 wide-spreading; the bark is grey and usually smooth, but in very old trees it 

 becomes furrowed and corrugated. The flowers are ivory-white and of much 

 substance. 



A second species of this genus, Carrierea Dunniana L6veill6, is described in Fedde, 

 Rep. Nov. Sp. IX. 459 (1911), but we have seen no specimens and the description is 

 too meagre. 



IDESIA Maxim. 



Idesia polycarpa Maximowicz in Bull. Acad. Sci. St. Petershourg, 

 s6t. 3, X, 485; in Mel Biol. VI. 19 (1866).— CarriSre in Rev. Hort. 



