162 WILSON EXPEDITION TO CHINA 
una ventrali plus minusve ovato-elongata; c' staminibus 2 liberis v. basi coalitis 
v. stamine uno, antheris flavis; 9 ovariis pedicellatis v. sessilibus sericeis, stylis 
brevibus v. mediocribus, stigmatibus brevibus v. oblongis. 
This is an interesting section on account of the 1-2 stamens of the c? flowers. 
The following species need careful comparison; they are certainly very closely re- 
lated, but without having seen many complete specimens of the different forms it 
is impossible to obtain a clear idea of their taxonomic value. 
150. Salix Sieboldiana Blume, Bijdr. Fl. Ned. Ind. X. 517 (1825). — Andersson 
in Mem. Am. Acad., n. ser. VI. 451 (Gray, Bot. Jap.) (1859); in Svensk. Vetensk. 
Akad. Handl. VI. 81, t. 5, fig. 47 (Monog. Salic.) (1867); in De Candolle, Prodr. 
XVI. pt. 2, 224 (1868). — Miquel in Ann. Mus. Lugd.-Bat. III. 28 (1867); Prol. Fl. 
Jap. 216 (1807). — Franchet & Savatier, Enum. Pl. Jap. I. 460 (1875).— Seemen, 
Salic. Jap. 63, t. 14, fig. F-K (1903). — Léveillé in Bull. Acad. Int. Géogr. Bot. XIV. 
210 (1904).— Koidzumi in Tokyo Bot. Mag. XXVII. 93 (tantum var. typica) (1913). 
? Salix caloptera Miquel in Ann. Mus. Lugd.-Bat. III. 26 (1867); Prol. Fl. Jap. 
214 (1867). 
? Salix brachylepis Franchet & Savatier, Enum. Pl. Jap. II. 503 (1879). 
JAPAN. Kyushu: near Nagasaki, open places, common, March 18, 1914, 
E. H. Wilson (No. 6301; bush 0.6-1.8 m. tall, erect, spreading; c^; No. 6301, 
9); Kagoshima, roadside, common, March 3, 1914, E. H. Wilson (No. 6165; 
bush 0.6-1.5 m. tall; c^; No. 6165*, 9); same place, Fogo, roadsides, abundant, 
March 14, 1914, E. H. Wilson (No. 6277; bush 0.6-1.5 m. tall; c; No. 6277, 2; 
S. Buergeriana?); Mt. Kirishima, roadside thickets, March 6, 1914, E. H. Wilson 
(No. 6179; bush 0.6-1.8 m. tall; cà; No. 6179, 9). Shikoku: prov. Tosa, 
April 11, 1888, T. Makino (No. 37%; à); same prov., Nanokawa, April 10, 1888, K. 
Penna 3s ). Hondo: prov. Musashi, Renkoji-mura, April 13, 1895 (ex Herb. 
okyo; 9). 
This may be distinguished from the following species, according to von Seemen, 
by the broadly rounded or cordate base of the leaves, and by the male flowers with 
1-2 stamens; but not having seen mature leaves of the two species, I do not know 
whether these are forms of one species (Koidzumi) or of two distinct species (See- 
men). The type was sent to Java by P. von Siebold under the name S. alba. See 
Blume, 1. c., and Seemen, l. c. 
151. Salix Buergeriana Miquel in Ann. Mus. Lugd.-Bat. III. 28 (1867); Prol. 
Fl. Jap. 216 (1867). — Franchet & Savatier, Enum. Pl. Jap. I. 460 (1875). — See- 
men, Salic. Jap. 66, t. 16, fig. A-D? (1903). — Léveillé in Bull. Acad. Intern. Géogr. 
Bot. XIV. 210 (1904); XVI. 143 (1906). 
Saliz Sieboldiana, var. Buergeriana, f. 1. genuina Koidzumi in Tokyo Bot. Mag. 
XXVII. 93 (1913). 
JAPAN. Kyushu: base of Nishi-Kirishima, roadsides, March 10, 1914, E. H. 
Wilson (No. 6248; bush 0.5-1.5 m. tall; g'; No. 6248%, 9); Nagasaki, March 21, 
April 2, 1862, C. Mazimowicz (type, c^; mixed with 9 S. vulpina Andersson In 
Herb. Gray); same locality, March 20, April 10, 1863, C. Mazimowicz (9; both 
specimens as S. Miqueli); Ehiko-san, May 3, 1907, U. Faurie (Nos. 10, 11; c^; No- 
12, with fruits). : 
_ This species is very similar to S. Sieboldiana Blume, from which it differs, accord- 
ing to von Seemen, who saw the types, in its leaves being attenuate, obtusish E 
acute at the base and in its c? flowers with only one stamen. In both the species 
the pedicels measure from % to 34 and the styles from 14 to 14 of the length of 
the ovaries; the glands are mostly shorter than the pedicels. The aments appear 
