154 



Leaves minutely distinctly serrulate, A. morrisonense. 



(7) Lobes of leaves usually 3, if more, less than 5, obtuse at the apex. (8) 

 Lobes of leaves 5, or more than 5, acute or acuminate at the apex. (9) 



(8) Lobes serrate on the margin A. Tutclteri var. SMmadai. 



Lobes entire on the margin or nearly so. ..A. trifidwn var. formosanum. 



(9) Leaves 7-lobecl A. dupUcdoserratum. 



Leaves 5-lobed. (10) 



(10) Lobes lanceolate A. serrulatum. 



Lobes ovately triangular A. Oliverianum var. NaJcaharai. 



Acer albo-purpurascens HAY ATA Materials for a Flora of Formosa 

 G4. Branches rubro-purpurascent, terete, glabrous. Leaves elongately oblong 

 or oblong lanceolate, 10 cm. long, 3 cm. brood, acuminate at the apex, 

 (acumen linear, obtuse at the apex, 1-i cm. long), acute at the base, 

 uudulately entire, or entire, greenish above, glaucous below, obscurely 

 3-nerved, central nerve strong, rubescent, lateral nerves very much slender 

 or rarely obsolete, primary lateral veins 7 on both sides, nearly straight, 

 divaricate at an angle of 50, nerves, veins and veinlets slightly elevated, 

 reticulate above, prominently reticulate below, petioles 1.1 cm. long, sulcate 

 inside. 



HAB. Giokusan. 



Near Acer Iceviyatum WALL, and still more A. Fargesi and also some 

 form of A. oblongum WALL., but quite easily distinguishable by the leaves, 

 Avhich are acuminate at the apex and acute at the base. 



Acer caudatifolium HAY ATA Materials for a Flora of Formosa p. 05. 

 Branches fusco-cinerascent, remotely leafy. Leaves ovately lanceolate, 8 cm. 

 long, 3^ cm. broad, acuminate at the apex, cordate at the base, obscurely 

 3-lobecl crenately serrate, obscurely 5-nerved, central nerve 3-times 

 long as lateral nerves, and 7-times long as basal nerves, primary 

 lateral veins 5 on both sides, divaricate from the costa at an angle of 40, 

 nerves, veins and veiulets elevated below, rubesceut, pallid below, petioles 

 li cm. long, sulcate inside. 



HAB. Giokusan. 



