SALICACEAE. — SALIX 71 
the @ catkins in S. densifoliata Seemen is precisely the same as described by 
Franchet. See the keys on p. 79 and p. 90. 
This pretty low-growing and creeping Willow is abundant on the rocks and on 
the sandy foreshores of the Yangtsze River from Ichang westward through the 
gorges for some 300 miles, but searcely reaches Chungking. During the summer 
floods this plant is submerged for weeks together, but in the winter it is very con- 
Spieuous with its vivid green leaves, the plants forming broad mats of verdure. 
The flowers open in December and January and are borne at the ends of the pre- 
vious season's branchlets as is usual in most species of Willow, whereas in SS. 
Bockii Seemen, which in herbaria looks similar, the flowers are borne on the shoots 
of the current season and while these shoots are still growing. E. H. W. 
Salix Bockii Seemen in Bot. Jahrb. XXIX. 278, t. 3, fig. a-M 
(1900).—Léveillé in Bull. Soc. Bot. France, LVI. 297 (1909). — Bean, 
Trees & Shrubs Brit. Isl. II. 477 (1914). 
Western Szech’uan: near Wa-shan, side of streams, common, alt. 
600-1500 m., July 1908 (No. 1414; bush 0.9-1.5 m. tall; flowers white, 
conspicuous; à and 9); Yachou Fu, side of streams, abundant, 
alt. 600-1500 m., August 1908 (No. 1414; 9 flowers and fruits); 
Mupin, alt. 2600 m., September and October 1910 (No. 4369; € flowers 
and fruits); generally shingly beds of streams, alt. 1000-3000 m., Sep- 
tember 1910 (No. 4351; bush 0.9-3 m. tall; 7); banks of Yangtsze 
River, June 1903 (Veiteh Exped. No. 4510; bush 0.3-0.6 m. tall; 
c and 9). Eastern Szech’uan: Chungking, E. Faber (No. 3; 
small shrub; 3); Mt. Omei, 1600 ft., E. Faber (No. 74; 9); Kiating 
Fu, E. Faber (No. 211; g). Southeastern Szech'uan: Nan- 
ch'uan, A. v. Rosthorn (No. 1509, type; 9). 
In western Szech'uan at altitudes between 300 and 3000 m. this Willow is abun- 
dant on the sandy foreshores and in the gravelly and stony beds of rivers and 
mountain-torrents. It also occurs sparingly on the banks of the Yangtsze River 
west of Chungking and near Sui Fu and on the lower reaches of the Min River in 
the neighborhood of Kiating Fu. It grows from 1 to 3 m. tall and often covers 
large areas. The leaves are gray-green and in late summer and autumn it is a 
decidedly ornamental flowering shrub. The catkins are freely borne on the current 
season's and actively growing shoots, and in this character this Willow is unique 
among the Chinese species. E. H. W. 
Salix myrtillacea Andersson in Jour. Linn. Soc. IV. 51 (1860). — 
Hooker f., Fl. Brit. Ind. V. 637 (1888). 
Saliz subpyenostachya Burkill in Jour. Linn. Soc. XXVI. 532 (1899).— 
Léveillé in Bull. Soc. Bot. France, LVI. 301 (1909). 
Western Szech'uan: west of Kuan Hsien, Pan-lan-shan, alt. 
3300-3600 m., June 1908 (No. 2161; bush 0.6-1.2 m. tall; with young 
fruits); Tachien-lu, alt. 3000-4300 m., E. Pratt (No. 835, type of S. 
