SALICACEAE. — SALIX 109 
JAPAN. Hondo: prov. Sagami, “ circa Hami prope Yokoska in locis inunda- 
tis,” L. Savatier (No. 2718, type of S. eriocarpa, ex Franchet & Savatier); Kama- 
kura, April 6, 1880 (No. 11, ex Bot. Inst. Coll. Sci. Tokyo, type of S. dolichostyla, 
ex von Seemen); prov. Mutsu, Aomori, in river valleys, May 6, 1898, U. Faurie 
(Nos. 1259, 1260, co-types, ex von Seemen); “in plateis Aomori," May 1905, U. 
Faurie (No. 6623; tree 7-8 m. tall; 7). Shikoku: prov. Tosa, Nanokawa, April 
4, 1890, K. Watanabe (9 ). 
According to the description of the authors this species certainly is the same as 
S. dolichostyla Seemen, the type of which came from about the same region. It 
must be very nearly related to S. jessoensis Seemen, and there is a 9 specimen be- 
fore me from Sapporo, May 1892 (No. 51 ex Herb. Bot. Gard. Tokyo), which agrees 
with this species in every respect but has two glands like S. eriocarpa. 
According to Lackschewitz (in Schedae Herb. Fl. Ross. VII. 107, No. 2255 
(1911]). — Toepffer, Salicol. Mitt. No. 5, 236 [1912]), S. mixta Korshinsky (in Act. 
Hort. Petrop. XII. 391 [1892]), is the same as S. dolichostyla Seemen. Having be- 
fore me ¢ and 9 specimens collected by Korshinsky “ad ostium Ussuri prope 
Polowinnaja," May 16, 1891 (9) and on the middle Amur, May 5, 1891 (g), I 
agree with Lackschewitz that S. mizta is a very similar plant, although 1 have not 
found a dorsalgland in the 9 flowers which according to Lackschewitz is not 
always present; Korshinsky does not say anything about the glands. As it is 
the case with other species, the dorsal gland of the 9 flowers may be sometimes 
wanting. Further investigation of good specimens of all these species is needed to 
prove whether they are connected with S. jessoensis Seemen and whether the sec- 
tions Fragiles and Albae can be separated by the glands in the 9 flowers or not. 
The ventral glands of the c flowers of S. mixta Korshinsky are variously dentate 
or lobulate in the specimen before me, and the dorsal gland is smaller and often 
entire, while Lackschewitz says: “‘nectarium duplex, internum oblongum, externum 
lineare." According to Komarov in Act. Hort. Petrop. XXII. 28 (FI. Mansh.) 
(1903) S. mizta is a hybrid between S. purpurea Linnaeus and S. viminalis Lin- 
naeus, but this is certainly a mistake. Nakai (in Jour. Coll. Sci. Tokyo, XXXI. 
215 [Fl. Kor. 11.] [1911]) mentions S. mixta from Korea. : 
There is another species of this section, Salix elegantissima K. Koch (in Wochen- 
schr. Ver. Befórd. Gartenb. Preuss. XIV. 380 [1871]; Dendr. II. pt. 2, 505 (1872]), 
which is supposed to have been introduced into Europe from Japan. It may repre- 
Sent a hybrid between S. babylonica Li and S. hondoensis Koidzumi. Von 
Seemen (Salic. Jap. 77 [1903]) believes S. elegantissima a hybrid between S. baby- 
ica and S. fragilis Linnaeus, like S. blanda Andersson (in Svensk. Vetensk. Akad. 
Handl. VI. 50 [Monog. Salic.] [1867]); and Wolf (1900) and I (1904) reached the 
same conclusion. But in Ascherson & Graebner (Syn. Mitteleur. Fl. IV. 73 
[1908]) Seemen places S. elegantissima in the sect. Fragiles without any other re- 
at than: “ Vielleicht aus Japan stammend.” See also S. lasiogyne Seemen, 
Sect. T. ALBAE Borrer in Hooker, Brit. Fl. 418 (1830); in Loudon, Arb. 
Brit. YII. 1522 (1838). — Kerner in Verh. Zool.-Bot. Ges. Wien. X. 185 (1860). — 
Seemen in Ascherson & Graebner, Syn. Mitteleur. Fl. IV. 78 (1908). 
Saliz, sect. Subalbae Koidzumi in Tokyo Bot. Mag. XXVII. 88 (1913), in 
adnot. 
Vide sect. 6, ab ea praecipue differt petiolis semper eglandulosis, floribus femi- 
neis glandula una ventrali instructis. 
