1904], 



OBSERVATIONS ON THE FLORA OF JAPAN. 141 



sub-5-nerved, deciduous ; unguis ^ as long as the the lamina, narrower 

 below. Stamens 5, slightly exceeding the calyx-lobes ; filament subulate, 

 white ; anther broadly rounded, emarginate at the apex, bilobed at the 

 base, the cell semiorbicular. Staminodes 5, slightly shorter than the calyx- 

 lobes, spathulate ; the lamina broadly deltoid-flabellate, truncate and with 

 a comb of 5-6 finger-like short branches, which are unequal in length an 1 

 merely obtuse (no globule) at the end, 1 mm. or a little more across ; the 

 stipitate portion rectangular. Pistil equal to the calyx-lobes in height ; 

 ovary ovoid, sessile, smooth, green, with 3 parietal placentas, many-ovuled ; 

 style very short ; stigmas 3, conspicuous, erect-patent and slightly recurved, 

 elliptical-oblong, obtuse. Capsule (immature) globose, green, crowned 



with a short style and stigmas, about \\ mm. across. Seeds (immature) 

 numerous, oblong, often narrowed below, 1 mm. long. 



Nom. Jap. Hime-umebachiso (nov.). 



Hab. Prov. Shinano : Alpine summit of Mt. Shirouma (Kican Shi- 

 mural August 20, 1904). 



Rare.. By the much smaller and more delicate habit, the reniform 

 leaves, the long-unguiculate petals, the staminodes with shorter fewer and 

 not capitellate branches, and 3-carpellary ovary, etc., present one should be 

 specifically separated from Parnassia palustris Linn. 



Salix Thunbergiana Blume subsp. melanostachys Makino. 



Salix melanostachys Makino in herb. Sc. Coll. Imp. Univ. Tokyo. 



Salix nigrolepis Shirai MS. 



Shrub, attaining about 2 m. or more in height, many-branched. 

 Branchlets terere, glabrous, purplish brown ; bud-scale coriaceous, glabrous 

 but sometimes slightly puberulent. Leaves petiolate ; young ones glabrous, 

 but sometimes ciliated and puberulent on veins beneath ; adult ones lan- 

 ceolate, oblanceolate, or obovato-lanceolate, acute or acuminato-acute with 

 a mucronate tip, acute at the base, serrulate with mucronate small teeth, 

 very narrowly reflexed on margins, chartaceo-coriaceous, glabrous on both 

 sides, green above, glaucous beneath, attaining 9 cm. long, 2^ mm. wide; 

 midrib prominent beneath : veins numerous, about 6-15 on each side, 

 rather loose, slender, erect-patent, arcuate upwards and reaching the 

 margin, prominent beneath ; veinlets very numerous, rather close, transverse 

 between the veins, delicate, prominent beneath, forming small areolae be- 

 tween veinlets ; petiole 2-12 mm. long, semiterete, dilated towards the base, 

 glabrous ; stipules sessile or subsessile, oblique in form, falcato-lunate, acute* 



