18 WILSON EXPEDITION TO CHINA 
timber tree); without locality, A. Henry (No. 5423; male catkins, 
No. 4013, fruits). 
Possibly P. Fargesii may prove to be the preceding species, but according to 
Burkill, 1. c., Franchet himself pointed out that his P. Fargesii should be united 
with P. lasiocarpa. Unfortunately 1 have not seen Franchet’s type specimen 
which came from Tchen-keou-tin, Szech'uan, and his description is too insuffi- 
cient. The pubescence of the leaves and branchlets of P. lasiocarpa is variable, 
and cultivated plants usually are much more glabrous than the wild trees. 
In moist woods this is a very common tree in western Hupeh and eastern Sze- 
ch’uan, but I do not remember meeting with it in western Szech'uan. It is a tree 
of medium size with a straight and relatively thin trunk clothed with dark gray 
fissured bark. The crown is pyramidal or rounded at the top and rather sparingly 
branched and the branchlets are thick. Colloquially it is known as the Tai-erh-po. 
Pictures of this Poplar will be found under Nos. 561, 563, 572, 0127 and 0130 of the 
collection of my photographs and also in my Vegetation of Western China, Nos. 401, 
402. 
The specimen figured in the Botanical Magazine (l. c.) has polygamous flowers, 
but this is not normal in this or any other species of Poplar, though it has been 
detected occasionally in many species and probably occurs from time to time in 
them all. In the Botanical Magazine (l. c.) it is stated that the introduction of 
this Poplar was effected by means of “a living plant." This should read “plants,” 
since the original consignment which 1 sent to Messrs. Veitch comprised about a 
dozen small specimens of this tree, and probably normal flowers of the two sexes 
will appear when these trees flower. E. H. W. 
Populus suaveolens Fischer in Allg. Gartenzeit. IX. 404 (1841); in 
Bull. Acad. Sci. St. Pétersbourg, IX. 348 (1842).— Ledebour, Fl. 
Ross. III. 2, 629 (1850). — Maximowicz in Bull. Soc. Nat. Mosc. 
LIV. 51 (1879), tantum forma a pro parte. — Koehne, Deutsche Dendr. 
84 (pro parte) (1893). — Schneider, Ill. Handb. Laubholzk. I. 14 (pro 
parte) (1904).— Dode in Mém. Soc. Nat. Hist. Autun, XVIII. (Eztr. 
Monog. Inéd. Populus, 61) vix v. tantum pro parte (1905). — Asch- 
erson & Graebner, Syn. Mitteleur. Fl. Y. 48 (pro parte) (1908). — 
Gomboez in Math. Termesz. Kózl. XXX. 110 (1908), exclud. var. 8. — 
Henry in Gard. Chron. ser. 3, LIII. 198, fig. 88 (1913); in Elwes & 
Henry, Trees Gr. Brit. & Irel. VII. 1841, t. 410, fig. 25 (1913). 
Populus balsamifera Pallas, Fl. Ross. I. 1, 67, t. 41 (excl. fig. B) (non Lin- 
naeus) (1784). 
Populus balsamifera, var. y intermedia Loudon, Arb. Brit. 111. 1674 (1838). — 
Populus balsamifera, var. ¢ suaveolens Loudon, Arb. Brit. 111. 1674 (1838). — 
Wesmael in De Candolle, Prodr. XV1. 2, 330 (1868); in Mém. Soc. Sct. 
Hainaut, 111. 246 (Monog. Populus, 66) (pro parte) (1869). — Burkill in 
Jour. Linn. Soc. XXVI. 535 (1899), pro parte, includ. var. laurifolia. — 
Matsumura, Ind. Pl. Jap. Il. pt. 2, 7 (1912). 
Populus pseudobalsamifera Turezaninow in Bull. Soc. Nat. Mosc. I. 101 (no- 
men nudum, non Fischer) (1838) secundum specim. originale, fide Henry. 
