536 198. SALICACER. 
Curuur: Peking (Bushell!); SutxakrNa : Corean Gate and 
Laohoo (Ross, 17, 69). Herb. Kew. 
Siberia. 
Var. Simonii, Wesmael in Bull. Soc. Roy. Bot. Belg. xxvi. 
p. 378. 
Populus Simonii, Carriére in Revue Hortic. 1867, p. 360; Mazim. in 
Bull. Soc. Imp. Nat. Mosc. 1879, p. 52; Kanitz in Ber. math.-nat. Ungarn, 
(repr.) p. 7, and Pl. Exped. Széch. p. 58; Bretschn. Hist. Eur. Bot. Disc. 
p. 832. 
CHHL: Siwantze (Simon, 151!); SmrwakrNG: between 
Kaichow and Kinehow (Ross, 211); Kawsum: Sziningfu 
(Szechenyi ex Kanitz). Herb. Kew.: Mus. Paris. 
3. Populus euphratica, Olivier, Voy. iii. tt. 45, 46 ; Brandis, 
For. Fl. p. 474, t. 63; Wesmael in DC. Prod. xvi. 2, p. 326, et 
Monogr. tt. 10-13, et in Bull. Soc. Roy. Bot. Belg. xxvi. p. 375; 
Regel in Act. Hort. Petrop. vi. p. 473; Aitchison in Trans. 
Linn. Soc. n. s. iii. p. 111; Hook. f. Fl. Brit. Ind. v. p. 638; 
Trautv. in Act. Hort. Petrop. ix. p. 190; Engler in Notizbl. K. 
Bot. Garten zu Berlin, ii. p. 217. 
Populus diversifolia, Schrenck, Enum. 1842, p. 15; Komarow in Ber. 
Petersb. Naturf.Ges. xxiii., ex Just's Jahresbericht, 1894, ii. p. 84; Bretschn. 
Hist. Eur. Bot. Disc. p. 986. 
Onrnrr: Peking (Alcock!); Kansun: beyond the Great Wall 
(Piasezki ex Maximowicz). Herb. Kew. 
Distributed from N. China, south-westward through N.W. 
India, Afghanistan, and Turkestan to Syria, Egypt, and British 
East Africa. 
4. Populus lasiocarpa, Oliver in Hook. Ic. t. 1943. 
— Fargesii, Franchet in Bull. Mus. Hist. Nat. de Paris, 1896, 
p. 280. 
Houren: District of Chienshih (4. Henry, 5423 A !), Patung, 
in the mountains only (A. Henry, 4013!) ; SZECHUEN : 'T'ehen- 
keoutin (Farges!). Mus. Brit.; Herb. Kew. ; Mus. Paris. 
Monsieur Franchet himself pointed out to me that his 
P. Fargesii skould be placed under P. lasiocarpa. 
5. Populus nigra, Linn. Sp. Pl. ed. 1, p. 1034; var. sinensis, 
Carrière in Revue Hortic. 1867, p. 340; Wesmael in DC. Prod. 
xvi. 2, p. 327, et in Bull. Soc. Roy. Bot. Belg. xxvi. p. 976; 
Maxim. in Bull. Soc. Imp. Nat. Mose. 1879, p. 50 ; Franchet in 
Mém. Soc. Sc. Nat. Cherbourg, xxiv. p. 255. 
