Salicaceae 



367 



koku, Kyushu. s. Kuriles. In western Honshu (Kinki Distr. 



and westw.), Shikoku, and Kyushu this plant is sometimes 

 differentiated as S. alopechroa Kimura with aments having 

 much more reduced leaves at base, the staminate shorter, 

 thicker, and larger. 



23. Salix shiraii Seemen. Shirai-yanagi. Shrub with 

 dark brown branches, gray-appressed pubescent only when 

 young; leaves with petioles 6-10 mm. long, the blades ovate to 

 narrowly so, 2.5-5.5 cm. long, acuminate to caudately acumi- 

 nate, sometimes acute, vivid green, acutely appressed-toodied, 

 rounded to shallowly cordate, rarely subacute at base, glaucous 

 and glabrous, sometimes gray-pubescent beneadi when young; 

 staminate aments nearly sessile, about 4 cm. long, 5 mm. wide, 

 densely flowered, the bracts small, broadly ovate, rounded at 

 apex, densely white-hairy; stamens 2, the filaments free, gla- 

 brous; pistillate aments rather loosely flowered; capsules long- 

 sdpitate, glabrous, 2.5-3 mm. long; style slender, the stigmas 

 short. Mountains; Honshu (nearNikko). 



24. Salix rupifraga Koidz. Koma-iwa-yanagi. Shrub, 

 with grayish brown glabrous branches, often with long grayish 

 appressed-pubescence while young; leaves with petioles 4-10 

 mm. long, the blades ovate-oblong to oblong, 4-6.5 cm. long, 

 1.5-2.5 cm. wide, acuminate to very acute, loosely and acutely 

 appressed-toothed, acute to obtuse or sometimes nearly rounded 

 at base, silky pubescent on both surfaces when young, becom- 

 ing glabrate except the puberulent midrib above, glaucous be- 

 neath; staminate aments cylindric, 2-2.5 cm. long, about 6 

 mm. across, short-pedunculate, the bracts elliptic or ovate, very 

 obtuse, long white-hairy on both surfaces, about 1.3 mm. long; 

 pistillate aments to 5 cm. long in fruit, densely flowered; 

 ovaries glabrous, short-stipitate; styles and stigmas very short, 



stigmas bifid. Mountains; Honshu (Kai and se. Shinano 



Prov.). 



Var. eriocarpa Kimura. Distinguished by the pubescent 

 ovaries. Occurs with the typical phase. 



25. Salix japonica Thunb. S. babylonica var. japonica 



Anderss.; S. jatiriei Seemen Shiba-yanagi. Shrub with 



brownish slender branches pubescent while young; leaves 

 with petioles 3-5 mm. long, silky at first, soon glabrous, the 

 blades lanceolate to broadly so, 5-8 cm. long, 1.5-2.5 cm. 

 wide, glabrous, appressed-toothed, obtuse to rounded at base, 

 vivid green above, glaucous or grayish beneath; staminate 

 aments 3-8 cm. long, about 5 mm. across, rather loosely 

 flowered; filaments pilose below; pistillate aments short- 

 pedunculate, linear, rather loosely flowered, 6-12 cm. long, 

 the axis scattered short-pilose, the bracts ovate, rounded at 

 apex, sparsely short-pilose; capsules stipitate, glabrous; style 



short, the stigmas oblong. Hills and mountains; Honshu 



(centr. distr.); common. 



26. Salix rorida Lacksch. S. daphnoides sensu auct. 



Japon., non Vill.; S. lac^schewitziana Toepfer Ezo-yanagi. 



Tree with glabrous, reddish, slightly glaucous branches; leaves 

 with petioles 2-8 mm. long, the blades glabrous, lanceolate, 

 5-12 cm. long, 7-30 mm. wide, long-acuminate, acute to ob- 

 tuse or rounded at base, glaucous beneath, serrulate; staminate 

 aments nearly sessile, 1.5-3.5 cm. long, 12-13 mm. across, very 

 densely flowered, the bracts narrowly obovate, 2-2.5 mm. long, 

 glandular on margin, densely long silvery-hairy, the filaments 

 glabrous; pistillate aments 2-^ cm. long, 1-1.5 cm. across, 

 very densely flowered; ovaries glabrous, stipitate; style slender, 

 rather elongate, the stigmas short, bifid. Hokkaido, Hon- 

 shu. Sakhalin, Amur, Ussuri, and Korea. 



Var. roridaeformis (Nakai) Ohwi. S. roridaejormis Na- 

 kai; S. lac\schcu'itziana var. roridaejormis (Nakai) Kimura; 



5. rorida var. eglandulosa Kimura Ko-Ezo-yanaci. Bracts 



eglandular. Honshu (Kamikochi in Shinano). Korea 



and Sakhalin. 



27. SalLx kinuyanagi Kimura. 5. viminalis sensu auct. 

 Japon., non L. Kinu-yanagi. Tree or shrub with gray- 

 ish villous, rather thick branchlets; leaves with petioles 10-18 

 mm. long, the blades chartaceous, narrowly lanceolate, 10-20 

 cm. long, 1-2 cm. wide, caudately acuminate, obtuse to acute 

 at base, with obsoletely undulate and slighdy recurved mar- 

 gins, appressed puberulent above while young, long-silvery ap- 

 pressed-villous beneath; staminate aments ellipsoidal or ovoid, 

 densely flowered, sessile, 2.5-3.5 cm. long, 15-20 mm. in di- 

 ameter, the bracts broadly lanceolate, acute, villous outside, 

 3-3.2 mm. long; filaments free, glabrous. Widely culti- 

 vated in Honshu, Shikoku, and Kyushu; pistillate plant un- 

 known to us. 



SaUx X thaumasta Kimura is a hybrid of No. 27 with 

 S. gracilistyla. 



28. Salix petsusu Kimura. S. viminalis sensu auct. 

 Japon., non L.; S. viminalis var. yezoensis C. K. Schn.; 5. 



yezoensis (C. K. Schn.) Kimura Ezo-no-kinu-yanagi. 



Tree resembling No. 27, differing in the radier slender 

 branches, these less densely hairy with shorter pubescence, the 

 branchlets grayish brown, densely white-pubescent while 

 young; leaves widi pubescent petioles 8-15 mm. long, the 

 blades lanceolate to oblong-lanceolate, 10-20 cm. long, 1.5-2 

 cm. wide, long-acuminate, acute to obtuse at base, entire, 

 usually glabrous above, with dense silvery appressed hairs be- 

 neath; staminate aments short-cylindric or ovoid-cylindric, 

 2-3.5 cm. long, 1-1.5 cm. in diameter, sessile; pistillate aments 

 cylindric, 3.5-6(-10) cm. in fruit, die bracts 2-2.5 mm. long, 

 dark brown above, white-hairy on back. Hokkaido, Hon- 

 shu (centr. distr. and northw.). Sakhalin. 



29. Salix sachalinensis F. Schmidt. S. opaca Anderss. 

 ex Seemen; S. si\o\iana Makino; S. makinoana Seemen, pro 

 parte; S. pilgeriana Seemen; S. sachalinensis var. pilgeriana 



(Seemen) C. K. Schn. Onoe-yanagi. Tree; branches 



glabrous, brownish, slightly pubescent while young, the hairs 

 short and grayish; leaves with petioles 2-6 mm. long, the 

 blades lanceolate to narrowly so, 6-10 cm. long, 8-20 mm. 

 wide, gradually acuminate at both ends, entire or obsoletely 

 undulate with slightly recur\'ed margins, short-appressed 

 silky pubescent beneath especially while young, pale and 

 scarcely glaucous on under side; staminate aments short- 

 pedunculate, densely flowered, cylindric, 2-4 cm. long, 5-6 

 mm. in diameter, the bracts lanceolate, obtuse, with long whit- 

 ish hairs especially on margin, the filaments glabrous; pistil- 

 late aments densely flowered, 2.5-5 cm. long; capsules with 

 short whitish pubescence, stipitate; style elongate, slender, to 



1.5 mm. long, the stigma short, oblong, entire. Valleys in 



mountains; Hokkaido, Honshu, Shikoku; rather common. 

 Amur, Ussuri, Sakhalin, Kamchatka, and Kuriles. 



The following hybrids are known: S. X euerata Kimura 

 (5. gilgiana X S. sachalinensis); S. X ampherista Kimura 

 {S. sachalinensis X S. vulpina) ; S. X ikenoana Kimura {S. 

 integra X S. sachalinensis). 



30. Salix integra Thunb. S. purpurea sensu auct. Ja- 

 pon., non L.; S. multinervis Fr. & Sav.; S. purpurea var. 

 multinervis (Fr. & Sav.) Matsum.; S. savatieri Camus; S. 

 purpurea subsp. amplexicaulis sensu auct. Japon., non Bory & 



