SALIC ACEAE. — SALIX 165 



only in the more glabrous branohlets, leaves and bracts, which are a little broader 

 toward the base. The gland is the same in both. Only the cf sex is known. 



There may be other forms of S. gracilistyla Miquel or hybrids of it with different 

 species. I mention a 9 specimen of Wilson's from Hondo: slopes of Fuji-san, 

 abundant, above 800 m.. May 8, 1914, bush 1.8-3.6 m. tall, in which the ovaries 

 have a distinct pedicel nearly as long as the gland ; the style is only half as long as the 

 ovary, and the bracts are very acute and black in the upper part. The leaves are 

 only half grown and are entire, with a pubescence very much like that of the typical 

 form. 



Sect. 33. HELIX Dumortier in Bijdr. Natuurk. Wetemch. 1825 {Verh. Gesl. 

 Wilgeii, 15) (1825). 



Salix, sect. Purpureae E. Fries in Syllog. PI. Nov. II. 37 {Conspec. Disp. Salic. 



Suec.) (1828). — W. D. Koch, De Salic. Comm. 24 (1828). — Andersson in De 



Candolle, Prodr. XVI. pt. 2, 306 (1868). — Seemen, Salic. Jap. 20 (1903); 



in Ascherson & Graebner, Sijn. Mitteleur. Fl. IV. 60 (1908), exclud. S. 



caesia. — Schneider, III. Handb. Laubholzk. I. 68 (1904). 

 Salix, sect. Monandrae Borrer in Hooker, Brit. Fl. 413 (1830). — Wolf in Act. 



Hort. Petrop. XXI. 135 (1903). 

 Salix, sect. Subviminales Seemen, Salic. Jap. 20 (pro parte) (1903). 



Arbores et frutices elati v. frutices satis parvi, ramis plerisque elongatis flexilibus. 

 Folia saepissime late usque lineari-lanceolata, 4-12-plo longiora quam lata et 

 pleraque acuta, rarius elliptica v. oblanceolata et breviora latioraque, margine In- 

 tegra V. serrato-denticulata. Amenta praecocia v. subcoetanea sessilia v. subsessilia, 

 angusto-cylindrica v. cylindrica, densa; flores c? glandula una, staminibus 2 fila- 

 mentis plus minusve v. totis coaMtis, interdum etiam antheris flavis coalitis; flores 9 

 ovariis sericeis v. glabris sessilibus v. subsessilibus v. breviter pedicellatis, styUs 

 nullis V. brevibus v. elongatis, stigmatibus satis brevibus. 



I place *S. Pierotii Miquel in this section and keep separate sect. Caesiae (see p. 

 173). Probably also such species as S. myrtillacea Andersson and S. Bockii Seemen 

 and their relatives should be referred to distinct sections. 



157. Salix Pierotii Miquel in Ann. Mus. Lugd.-Bat. III. 27 (1867) ; Prol. Fl. 

 Jap. 215 (1867). — Franchet & Savatier, Enum. PI. Jap. I. 461 (1875); II. 506 

 (1879). — Seemen, Salic. Jap. 60, t. 13, fig. e-f (1903); apud Siuzev in Trav. 

 Mus. Bot. Acad. Sci. St. Pitersbourg, IX. No. 2 (1912) ex Toepffer, Snlicol. Mitt. No. 

 5, 248 (1912). — Schneider, III. Handb. Laubholzk. I. 66, fig. 23 a, 27 1-m (1904). — 

 L6veill6 in Bull. Intern. Acad. Geogr. Bot. XIV. 210 (1904); XVI. 145 (1906). 



Salix japonica Dippel, Handb. Laubholzk. II. 221 (non Thunberg) (1892). 



NORTHEASTERN ASIA. Amur and Ussuri: fide von Seemen (1912). 



JAPAN. Hondo : " Iwajama, ubi frequens in jugis et in vallibus," April, P. von 

 Siebold (type, ex Miquel). Shikoku: prov. Tosa, Nanokawa, June 20, 1889, K. 

 Watanabe (sterile). Kyushu: "in promontorio Nomo Saki," Pierot (co-type, ex 

 Miquel). 



So far as I can judge mainly from plants cultivated in the Arnold Arboretum it is 

 a good species, easily distinguished from S. purpurea Linnaeus and S. Miyabeana 

 Seemen. The mature leaves are broadest below the middle, and their serration is 

 closer (5-6 teeth in 1 cm.) than in S. Miyabeana Seemen, where the leaves are 

 broadest at or above the middle and have a coarser serration (about 3 teeth in 1 

 cm.). The young twigs of S. Pierotii are pubescent, and often glabrous and yellow 

 in <S. Miyabeana, which has longer stipules. 



