SALICACEAE. — POPULUS 33 



Populus balsamifera, var. suaveolens Burkill in Jour. Ldnn. Soc. XXVI. 536 



(pro parte) (non Loudon) (1899). — Shirasawa, Icon. Ess. For. Jap. 1. 37, 



t. 18, fig. 11-24 (1900). 



NORTHEASTERN ASIA. Mandshuria: ad fl. Amur., Sept. 1, 1855, R. 



Maack; ad fl. Li-Fudin, 1860, C. Maximowicz; prov. Sheng-king, June 25, 1906, 



F. N. Meyer (No. 22; young shoots slightly angular ^); Kabarovka, August 23, 



1903, C. S. Sargent; banks of Chita River, Chita, August 12, 1903, C. S. Sargent. 



Sagh alien: without locality, Fr. Schmidt (ex Herb. Petrop.); Korsakof, July 



and September 1908, U. Faurie (Nos. 280, 280^18). Kamtschatka: Petropav- 



lovski, 1853-56, C. Wright. 



JAPAN. Hokkaido: Sapporo, Prov. Ishikari, May 1884, K. Miyabe; same 

 locality, August 21, 1905, J. G. Jack; " in arena rivorum Kamikawa," July 1905, 

 U. Faurie (No. 6642). Hondo: prov. Shimotsuke, Lake Chuzenji, August 11, 

 1905, J. G. Jack. 



This magnificent Poplar grows to a larger size than any other species of eastern 

 Asia, and ranks with the largest trees which grow there. It is abundant in Hok- 

 kaido, rather less so in southern Saghahen, and is rare in Hondo, where it occurs 

 sparingly in the Nikko region and northward. At its best it is a tree from 27 to 30 

 m. tall with a trunk 5 or 6 m. in girth. The branches are massive and wide- 

 spreading and form a flattened rounded and somewhat oval crown. The bark is 

 gray and deeply fissured on the trunk of old trees but smooth and yellowish-gray 

 on the branches and also on the trunks of young trees. It is seen at its best in the 

 moist bottom lands of river- valleys. Pictures of this tree will be found under Nos. 

 x237, x238, x239, x244, x367, x507 of my collection of Japanese photographs. 



E. H. W. 

 9. Populus szechuanica C. Schneider. See p. 20. 

 ^ Populus szechuanica, var. tibetica Schneider, n. var. 



Populus balsamifera Thomson, W. Himalaya dk Tibet, 180 (1852). — Stewart, 

 Punjab PI. 204 (1869). — Hooker f., Fl. Brit. Ind. V. 638 (in part, not Lin- 

 naeus) (1888). — Brandis, Ind. Trees, 640 (1906). 

 Populus tristis Koehne, Deutsche Dendr. 83 (non Fischer) (1893), quoad speci- 

 mina citata No. 2-4. — Henry in Elwes & Henry, Trees Gr. Brit. & Irel. VII. 

 1840, in adnot., 1841 (1913). 

 A typo recedit gemmis, ramulis leviter angulatis ramisque et petiolis breviter 

 pubescentibus, foliis initio utrinque deinde tantum nervis plus minusve puberulis 

 V. subglabrescentibus etiam axi amentorum foemineorum hirtella. 



Arbor ad 28 m. alta. Foha turionum ut videtur elhptico-lanceolata, basi sub- 

 rotundata v. late cuneata, apicem versus sensim acuta, visa ad 12 cm. longa et ad 

 5.5 cm. lata, margine glanduloso-crenato-dentata, ramulorum fructiferorum ovata, 

 basi plus minusve rotunda, apice acuta v. subacuminata v. late ovata v. ovato-ro- 

 tunda, basi leviter v. distinctius cordata, apice plus minusve acuminata, 10-14 cm. 

 longa et 6-8.5 cm. lata, margine satis crebre glanduloso-dentata, pleraque ciliata; 

 petioli 2-6 cm. longi. Flores non vidi. Capsulae subsessiles, glabrae, ovoideo- 

 globosae, 3-4-valvae. 



CHINA. Western Szech'uan: without precise locaUty, ravines, alt. 3000- 

 3600 m., June 1904 (Veitch Exped. No. 4527; tree 16 m. tall, with smooth bark). 



INDIA. Kashmir: "Northwestern Tibet," cultivated, alt. 2000-4500 m., 

 T. Thomson (ripe open fruits, type) ; Ladak, Khdrbu Koma to Shdksi, southwest 



^ This specimen may represent the same form as P. suaveolens, var. macrocarpa 

 Schrenk, see p. 19. I am not quite sure whether this is a form of P. suaveolens 

 or P. Maximowiczii, 



