32 WILSON EXPEDITION TO CHINA 
P. K. Subramaina Jyer (No. 86); Bhotan, without locality, W. Grifith (Nos. 957, 
2559, ex Haines). 
This species may represent a distinct group of sect. Tacamahaca according to its 
rather long stalked fruits, its densely ciliate leaves, its long anthers, etc. Dode 
refers it to his “groupe Ciliata” together with P. Jacquemontiana Dode (in Mém. 
Soc. Hist. Nat. Autun, XVIII. [Eztr. Monog. Inéd. Populus, 66, t. 12, fig. 108] [1905]) 
from the same geographical region without referring to any specimens. The only 
difference I can detect in his description is in the pubescent fruit. Having seen 
no specimen I cannot judge from Dode's insufficient indications if his species is 
distinct or only a variety of P. ciliata. 
7. Populus suaveolens Fischer. See p. 18. 
Populus suaveolens, var. Przewalskii Schneider, n. var. 
Populus suaveolens, var. a Maximowiez in Bull. Soc. Nat. Mosc. LIV. 51 
(1879) quoad specim. Piasezki. 
Populus Przewalskii Maximowiez in Bull. Acad. Sci. St. Pétersbourg, XXVII. 
540 (1882); in Mél. Biol. XI. 321 (1881). — Dode in Mém. Soc. Hist. Nat. 
Autun, XVIII. (Extr. Monog. Inéd. Populus, 55) (1905), exclud. synon.! — 
Gomboez in Math. Termesz. Kózl. XXX. 101 (Monog. Gen. Populi) (1908). 
Populus Przewalskii, f. microphylla Gombocz, 1. c. (1908). 
TIBET. 'Kukunor: * ad Hoangho superiorem ejusque affluentes nec non ad 
lacum Kukunor,” 1872 and 1880, N. M. Przewalski (type of P. Przewalskii, ex 
Maximowicz). 
CHINA. Kansu: “inter fl. Hoangho et murum magnum, in Liang-tshoue 
et Shan-dan-siang viis publicis, in arenosis Han-tschou,” July, August 1875, P. J. 
Piasezki (co-type of P. Przewalskii, ex Maximowicz). ^ 
: eu hate “ circa lacus Ubsa,” 1879, G. N. Potanin (with not quite ripe 
ruits). 
According to Maximowiez his P. Przewalskii is distinguished by “ capsulis 
parvis subsessilibus ovoideis obtusis pubescenti-pilosis maturis glabratis, stig- 
matibus 3." 1 have not seen a type specimen, but by the kindness of the Keeper 
of the Kew Herbarium I have been able to examine Potanin's specimen mentioned 
above. It agrees well with Maximowicz’s description. The leaves are ovate- 
oblong and somewhat acuminate at the apex and orbicular-cuneate at the base, 
both surfaces being more or less sparsely and finely puberulent; the petioles are 
loosely villose. The perianth and the ovaries of the male flowers are more or less 
pubescent; but further observations are needed to determine if the pubescence of 
the floral parts of Populus is a good character or not. The shape, the texture, an 
the pubescence of P. suaveolens Fischer seem to be very variable. See also p. 20; 
some of the sterile specimens here mentioned may belong to var. Przewalskit. 
__ 8. Populus Maximowiczii A. Henry in Gard. Chron. ser.3, LITI. 198, fig. 89 (1913) 
in Elwes & Henry, Trees Gr. Brit. & Irel. VIL. 1838, t. 410, fig. 24 (1913). 
Populus suaveolens, var. latifolia Regel in Mém. Acad. Sci. St. Pétersbourg, 
ser. 7, IV. 133 (Tent. Fl. Ussur.) (1862). — Gombocz in Math. Termes? 
Közl. XXX. 112 (Monog. Gen. Populi) (1908). ; 
Populus suaveolens Maximowiez in Bull. Soc. Nat. Mosc. LIV. 52 (formae sub 
b et c indicatae) (non Fischer) (1879). — Sargent in Gard. & Forest, VI. 
404 (1893); Forest Fl. Jap. 71 (1894). — Komarov in Act. Hort. Petrop. 
XXII. 17 (Fl. Mansh. 11.) (pro parte maxima) (1904). — Dode in Mém. 
Soc. Hist. Nat. Autun, XVIII. (Extr. Monog. Inéd. Populus, 61) (pro 
one Nakai in Jour. Coll. Sci. Tokyo, XXXI. 211 (Fl. Kor. 
