dec. i9io.] MAKING.— OBSERV. ON THE FLORA OB 1 JAPAN 293 



wide ; wings divergent, thin, oblanceolato-oblong, obtuse and 

 sometimes subailgulate at the apex, finely and densely vein.d, 

 virideseent, often shaded with purple, about 10mm long, 4-5 

 mm. wide. 



Nom. Jap. Hosoye-kayede (R. Yatabe), Ashiboso^urinoki 

 (M. Shirai). 



Hah Prov. Suruga : Mt. Fuji (Herb.! T. Makino, 1908); 

 Prov. Musashi: Tokyo, cultivated (M. Katniya ! 1909; T. 

 Makinol July and Oct. 1910). 



Acer (Macrantha) insillare Makino, sp. nov. 



A tree; trunk strictly erect; branches terete, smooth, gla- 

 brous, green, but castaneo-nigrescent when dried. Leaves 

 long-petiolate, ovate, oval-ovate or ovato-rotund, cordate or 

 subcordate at the base, duplicately serrate with acute or 

 subobtuse short teeth, 5- or sub-5- or sub-3- lobed, membrana- 

 ceous, glabrous, but when young ferrugineo-pubescent along 

 the nerves, ferrugineo-pubescent at the axil of veins beneath, 

 subquinquenerved at the base, 7— 14cm. long, 4— 14cm. wide ; 

 the terminal lobe large, deltoid or ovato-deltoid, caudately 

 long-acuminate at the apex ; upper lateral lobes short, acute 

 or short-acuminate ; lower lateral lobes small or obscure ; veins 

 loose, erect-patent ; veinlets very finely anastomosing ; petiole 

 rather stout, 2J-9cm. long and glabrous, but shorter and thinly 

 ferrugineo-pubescent when young. Raceme terminal, solitary, 

 simple, cernuous, rather densely niany-flowered, attaining about 

 8cm. long including the peduncle ; rachis slender, ferrugineo- 

 pubescent ; pedicels erect-patent, filiform, thinly ferrugineo-pubes- 

 cent, 3-8mm. long. Flowers (female) medium-sized, about 

 lcm. across. Sepals 5, shorter than the petals, linear-oblong, 

 obtuse or acutish, very scantily pubescent dorsally or glabrous, 

 about 3mm. long. Petals 5, cuneato-oblanceolate, obtuse 

 or acutish, irregularly crenato-serrate above, 4 J— 5|mm. long, 

 Disk orbicular, crenate. Stamens (rudimental) 8, very short ; 

 filament subulate; anther elliptical. Ovary compressed, pu- 

 bescent with curled hairs ; wings oblong, obtuse, spreading ; 

 style erect, very short ; stigmas 2, long and slender, revolute. 



