170 WILSON EXPEDITION TO CHINA 
165. Salix microstachya Turczaninow apud Trautvetter in Mém. Sav. Étr. Acad. 
Sci. St. Pétersbourg, III. 628, t. 4 (Salicetum) (1837); in Bull. Soc. Nat. Mose. 
XXVII. 377 (1854); Fl. Baical.-Dahur. 104 (1856). — Regel in Act. Hort. Petrop. 
VI. 466 (1880). — Wolf in Act. Hort. Petrop. XXIII. 156 (1903). 
Salix angustifolia, B leiocarpa Ledebour, Fl. Ross. IIl. pt. 2, 604 (1850). 
Salix angustifolia, 8 microstachya Andersson in De Candolle, Prodr. XVI. pt. 2, 
315 (1868). 
? Saliz cyanolimnea Hance in Jour. Bot. XX. 294 (1882). 
? Salix Wilhelmsiana Franchet in Nouv. Arch. Mus. Paris, sér. 2, VII. 93 (Pl. 
David. I. 283) (non Marshall von Bieberstein) (1884). 
Salix Wilhelmsiana, 8 microstachya Herder in Act. Hort. Petrop. XI. 456 (1891). 
The type was collected by Turczaninow in western Siberia on the Irkut River, 
and according to Hance’s description I have little doubt that the following specimen 
belongs to the same species: 
TIBET. Kukunor: “ad lacum Ko-ko-nor,” 1881, W. Mesny (Herb. Hance 
No. 22009; ex Hance). E 
MONGOLIA: Ordos “ dans les plaines humides," June, A. David (No. 2719; 
with fruits, ex Franchet); “ Ou la chan, bords des ruisseaux des montagnes, A. 
David (No. 2676; ex Franchet). sa 
David's specimens may belong to S. cheilophila Schneider (see p. 69), which is 
very similar, although it may be distinguished by its mostly two-colored bracts and 
minute stigmas. 
166. Salix Bockii Seemen. See p. 71. 
167. Salix Duclouxii Léveillé in Bull. Soc. Bot. France, LVI. 298 (1909). ; 
CHINA. Yunnan: Yunnan Fu, valleys, July 23, 1905, F. Duclouz (No. 670; 
c? and 9 types). : 
Through the kindness of Mgr. Léveillé I have received c? and 9 catkins and ; 
leaf of his type. The flowers appear in summer like those of S. Bockii Seemen, ar 
I suppose both species are very closely related. The c have the same long glani 
as the 2 flowers, the bracts are acute and somewhat like those of S. variegata 
chet. It needs more material in order to decide whether our plant is a good species 
or only a form of S. Bockii. 
168. Salix variegata Franchet. See p. 70. 
169. Salix andropogon Léveillé in Fedde, Rep. Spec. Nov. III. 21 (1906); 1n 
Bull. Soc. Bot. France, LVI. 297 (1909); Fl. Kouy-Tchéou, 381 (1915). 
CHINA. Kweichau: “ Lit du fleuve, submergé aux grandes eaux,” 
ber 15, 1904, J. Esquirol (No. 327; g and 9 types). ^. 
Mgr. Léveillé has kindly sent to the Arnold Arboretum a g' and a 9 catkin E 
this Willow. The species is very closely related to S. variegata Franchet, and 
cannot distinguish the 9 flowers from those of that species. The pubescence of 
catkins is sometimes somewhat yellowish, but I would not say: “ rhachi fulvo- 
villoso,” as Léveillé does. The ¢ catkins differ in several respects. The young 
anthers bear some hairs at the end of each connective, something I have never geen 
in any other species of Saliz. These hairs seem to fall off from the older anthers 
toward the base of the catkin. The filaments are pubescent at the base, une on 
S. variegata Franchet I have found them always glabrous, but von Seemen descr? 
the base of the filaments of the type of his S. densifoliata as "dicht weissgrau 
behaart,” a character which is variable in several species. The bracts of S. ando- 
pogon are villose and ciliate. Léveillé’s indication * squama . . . albide villosa, 
ebarbata ” seems to be a misprint for “ et barbata.” I have seen only very young 
small leaves which are nearly glabrous, the very short petioles being tomentose. 
