146 WILSON EXPEDITION TO CHINA 



p. 62). S. brackista also is nearly related to S. Lindleyana Andersson, which differs 

 in its more glaucous leaves, in the glabrous filaments and in the much broader ven- 

 tral gland. 



The specific name is derived from ffpdxicrTos, very small. 



120. Salix Souliei Seemen. See p. 62. 



121. Salix oreophila Hooker f. apud Andersson in Jottr. Linn. Soc. IV. 57 (1860) ; 

 in De Candolle, Prodr. XVI. pt. 2, 296 (1868). — Hooker f., Fl. Brit. Ind. V. 635 

 (1888). 



INDIA. Sikkim : " reg. alp. alt. 15-16000 ped.," J. D. Hooker (type; cf 

 flowers and fruits). 



This is a very small, flabellately branched, prostrate shrub. The leaves are green- 

 ish beneath ; their nerves are impressed above, and do not show on the lower surface; 

 the serration is rather deep, and the teeth are incurved, or the leaves are rather 

 trilobate at the apex. The bracts, at least of the cf plant, are sUghtly lobulate; 

 the filaments are glabrous. 



Salix oreophila, var. secta Andersson in De Candolle, Prodr. XVI. pt. 2, 

 297 (1868). — Hooker f., Fl. Brit. Ind. V. 635 (1888). 



Salix secta Hooker f. apud Andersson in Jour. Linn. Soc. IV. 57 (1860). 



INDIA. Sikkim : "reg. alp., alt. 14000 ped.," J. D. Hooker (type, cT and also 

 9 , ex Andersson, who says: " 1700Q ped."). 



S. secta Hooker f . seems to be only a very small form of S. oreophila Hooker f., 

 differing in its smaller, somewhat broader leaves, which are lobulate at the apex 

 (foliis cuneatis apice 3-5-fidis). The bracts in the male co-type before me are ob- 

 tuse at the apex and the filaments are glabrous as in the type of S. oreophila. It 

 resembles the European S. serpyllifolia Scopoh. These are, so far as I know, the 

 smallest Willows known. 



122. Salix calyculata Hooker f . apud Andersson in Jour. Linn. Soc. IV. 55 (1860) ; 

 in De Candolle, Prodr. XVI. pt. 2, 296 (1868). — Hooker f., Fl. Brit. Ind. V. 635 

 (1888). 



INDIA. Sikkim: "reg. alp., alt. 12-15000 ped.," J. D. Hooker (type; cf 

 and 9). 



According to Hooker, this is " a very small gnarled shrub, with ascending branch- 

 lets." I have seen the types the leaves of which apparently are not yet fully devel- 

 oped. The cf flowers have two very long and narrow glands, the dorsal being 

 scarcely smaller than the ventral. They are about half as long as the oblong glab- 

 rous bracts which are ciliate and somewhat emarginate at the apex. The free glab- 

 rous filaments are only H longer than the bracts. The 9 flov/ers apparently are not 

 in a normal condition, the ovaries being narrowly oblong with short sessile stigmas. 

 Andersson says: " capsulis breviter pedicellatis ovatis glabris, stylo mediocri, 

 stigmatibus brevibus." The gland is rather broad, ovate-rectangular, truncate or 

 emarginate at the apex; the bracts are glabrous, broadly obovate, crenulate at the 

 apex, nearly enveloping the ovaries. The younger branchlets and leaves are loosely 

 covered with long silky hairs. 



A cf specimen, collected by G. Forrest, Yunnan, Tah Range, alt. 3300-3800 m., 

 August 1906 (No. 4603), which was named S. microphyta Franchet by Diels (in 

 Not. Bot. Gard. Edinburgh, VII. 252 [1912]) looks very much hke S. calyculata. 

 The flowers have glabrous filaments and two rather large and broad glands. The 

 Yunnan plant, however, differs widely from S. microphyta Franchet (see p. 62) 

 and may represent a new species; certainly it needs further study. 



