38 WILSON EXPEDITION TO CHINA 



Popuhis alba, var. tomeniosa Wesmael in Bull. Soc. Bot. Belg. XXVI. 373 

 (1887).— Burkill in Jour. Linn. Soc. XXVI. 535 (1899). 



Populus alba Burkill, I. c. (non Linnaeus) (1899). — ?Nakai in Jour. Coll. 

 Sci. Tokyo, XXXI. 211 (Fl. Kor. II.) (1911). 



Populus pekinensis L. Henry, Rev. Hort. 1903, 355, fig. 142. 



Populus alba, var. seminuda Komarov in Act. Hort. Petrop. XXII. 20 (1903). 



Populus glabrata Dode in Mem. Soc. Hist. Nat. Autun, XVIII. (Extr. Monog. 

 Ined. Populus, 27, t. 11, fig. 25") (1905). 



CHINA. Chili: Siwantze, G. E. Simon (ex Carriere, type); near Peking, 

 Skaischkow (fide Maximowicz); same locality, E. Bretschneider; same locality, 

 S. W. Williams ("common over northern China, 50 feet high, timber not durable, 

 flowers in April"); Yellow Temple, near Peking, Sept. 16, 1903, C. S. Sargent 

 ("leaves very lustrous"); Peking, October 7, 1905, J. G. Jack. Chekiang: 

 Shanghai, cultivated in PubUc Garden, 1908, D. Macgregor. 



A picture of a cultivated specimen of this tree will be found under Nos. 650 and 

 0321 of the collection of Wilson photographs and also in his Vegetation of Western 

 China, No. 403. 



18. Populus adenopoda Maximowicz. See p. 23. 



19. Populus Sieboldii Miquel in Ann. Mus. Lugd.-Bat. III. 29 (1867), exclud. 

 plantis masculis. — Wesmael in De Candolle, Prodr. XVI. pt. 2, 327 (1868); in 

 Mem. Soc. Sci. Hainaut, III. {Mo?iog. Populus, 57) (1869). — Dippel, Handb. 

 Laubholzk. II. 192, fig. 91 (1892). — Koehne, Deutsche Dcndr. 80 (1893).— 

 Schneider, III. Handb. Laubholzk. I. 17, fig. 3 h-i, 7 h-1 (1904). — Dode in Mem. 

 Nat. Hist. Autun, XVIII. [Extr. Monog. Ined. Populus, 32, t. 11, fig. 33) 

 (1905). — Ascherson& Graehner, Sijn. Mitteleur. Fl. IV. 29 (1908). — Gombocz 

 in Math. Termesz. Kdzl. XXX. 131 (Monog. Gen. Populi) (1908). — Henry in 

 Elwes & Henry, Trees Gr. Brit. & Irel. 1794, t. 408, fig. 6 (1913). 



Populus tremula, var. villosa Franchet & Savatier, Enum. PI. Jap. 1. 463 (non 

 Lang) (1875). — Maximowicz in Btdl. Soc. Nat. Mosc. LIV. 49 (1879). — 

 Shirasawa, Icon. Ess. For. Jap. 1. 37, tab. 18, figs. 1-10 (1900). — Matsumura 

 Ind. PL Jap. II. 7 (1912). 



NORTHEASTERN ASIA. Saghalien: Korsakof, rare, June 1908, U. Faurie 

 (No. 279). 



JAPAN. Hokkaido : Hakodate 1861, C. Maximowicz; Shibetsu, July 12, 1884, 

 K. Miyabe; (near Mori, September 26, 1892, C. S. Sargent. Hondo: without 

 locality, P. von Siebold (type, ex Herb. Lugd. Bat.); prov. Mutsu, prope Aomori, 

 in sylvis. May 1902, U. Faurie (Nos. 5085, 5087, 5088); same locality, June 1905, 

 U. Faurie (No. 6644); prov. Shimotsuke, Lake Chuzenji, August 11, 1905, J. G. 

 Jack; Nikko, April 25, 1904, N. Mochizuki; prov. Shinano, above Narai, alt. 

 1200 m., September 3, 1905, J. G. Jack. 



This Japanese species seems to be distinct in the rather close dentation of its 

 leaves. 



This tree is widely distributed in Japan from about central Hondo northward 

 through Hokkaido to southern Saghalien. In Hondo it is not plentiful, but in 

 Hokkaido it was formerly very abundant ; but as its wood makes the best match- 

 sphnts in Japan it has been promiscuously felled for this purpose. In the govern- 

 ment forests in the more inaccessible parts of Hokkaido it still remains in fair quan- 

 tity. It is a tree of medium size with smooth grayish-green bark, and is very like 

 the common Aspen (P. tremula Linnaeus) in habit and general appearance, and like 

 that species it produces suckers freely. E. H. W. 



