SALICACEAE. — SALIX 129 



same hybrid. The type was collected in Hondo, near Mt. Indonosan, July 22, 

 1887 (No. 21; ex Herb. Bot. Gard. Tokyo; ex von Seemen); see p. 131. 



A rather distinct form seems to be Wilson's No. 7104 from the same locality 

 as No. 7103. Here the fruits with their short bracts and their short broad gland 

 much more resemble S. vulpina Andersson. Most of the leaves are distinctly whit- 

 ish beneath, and the young ones bear a rusty tomentum on the lower surface. The 

 catkins are very long, measuring from 6 to 8 cm. in length, nearly sessile, and re- 

 semble those of S. japonica Thunberg, especially var. Oldhamiana, which can, 

 however, be distinguished at once by its longer bracts with whitish (not rusty) 

 pubescence. 



The specific name is derived from KaKurroi, useless. 



90. Salix daiseniensis Seemen, Salic. Jap. 65, t. 15, fig. a-d (1903). — L^veill^ 

 in Bull. Acad. Int. Geogr. Bot. XIV. 210 (1904); XVI. 145, 146 (1906).— Koidzumi 

 in Tokyo Bot. Mag. XXVII, 266 (1913). 



Salix vulpina, var. daiseniensis Koidzumi in Tokyo Bot. Mag. XXVII. 90 

 (1913). 



JAPAN. Hondo: prov. Hoki, Mt. Daisen, May 26, 1899, U. Faurie (Nos. 

 3708, 3709, types; d" and 9 , ex Seemen); prov. Itachi, Tsukuba, April 14, 1909 (ex 

 Herb. Sakurai); prov. Rikuchu, Amibari, August 1909 (ex Herb. Yokohama 

 Nursery Co.; with fruits); same locality, April 1, 1911 (ex Herb. Sakurai). Hok- 

 kaido: Rebunziri, mountains, August 1, 1899, U. Faurie (No. 3712; with ? ex 

 von Seemen). 



A doubtful species. According to von Seemen the catkins of S. daiseniensis 

 resemble those of S. Buergeriana Miquel, but they appear with the leaves, and the 

 d^ flowers have one or two stamens, while the flowers of S. Buergeriana are preco- 

 cious and the cf flowers have only one stamen. Koidzumi first made S. daiseni- 

 ensis a variety of S. vulpina Andersson, but later kept it distinct and placed it in 

 the sect. Phylicifoliae, saying: "Species habitu S. Sieboldianae Blume sat similis 

 sed f oliis tenuioribus ; filamentis hberis fere glabris diagnoscenda. ' ' The specimen ex 

 Herb. Sakurai from the type locality has glabrous ovaries. So far as I can judge, 

 S. daisoiiensis may be a hybrid between one of the forms of S. vulpina Anders- 

 son and S. Sieboldiana Blume. I am not, however, quite sure if all the specimens 

 above represent such a hybrid. See also S. a?npherista Schneider. 



91. Salix amnicola Wolf in Act. Hort. Petrop. XXVIII. 31 (1911). 

 NORTHEASTERN ASIA. Maritime prov. : distr. Khabarovsk, " in alveo 



amnis Amur," May 19, 1910, N. Kuznetzov (No. 38, type; 9 ex Wolf). 



The leaves of this species are, according to Wolf, lanceolate or elliptic-lanceolate, 

 entire, from 2.5 to 5.4 cm. long and about M as broad, somewhat pubescent on 

 both sides and glaucous beneath. The female catkins are sessile and appear with 

 the leaves; they are cylindric and 3 to 4 cm. long, the bracts are Ungulate and 

 acute or obtusish; the ovaries are shortly stipitate, silky, and bear a style being 

 a little longer {]4-H of the ovary) than the pedicel; the stigmas are bilobate or 

 bipartite and about as long as the style; the gland is as long as the pedicel, 

 which in the fruit becomes M longer than the gland. 



Sect. 16. HAST AT AE Borrer in Hooker, Brit. Fl. 433 (1830); in Loudon, Arh. 

 Brit. 1592 (pro parte) (1838). —Andersson inSvensk. Vetensk. Akad. Handl. VI. 

 157 {Monog. Salic.) (1867); in De Candolle, Frodr. XVI. pt. 2, 251 (pro parte) 

 (1868). —Seemen, Salic. Jap. 18 (1903). — Koidzumi in Tokyo Bot. Mag. XXVIl. 

 89 (1913). 



