244 ROSACES. 



baccata from which this differs in having much smaller fruits and oblong 

 leaves acute at both ends. 



Pyrus formosana KAWAKAMI et KOIZUMI in HAYATA Materials for a 

 Flora of Formosa p. 100; KAWAKAMI in Tokyo Bot. Mag. XXV. p. 146. 

 Branches longitudinally rugose, fusco-purpurascent or cinerascent, noted 

 transversely with leaf-traces. Leaf-buds ovate, 5 mm. long, perules triang- 

 ularly acute, glabrous. Leaves 2-3-clustered at the apex of branches, 

 patent, membranaceo-coriaceous, elongately oblong or ovately oblong, 9-10 

 cm. long, 4 cm. broad, acute or acuminate at the apex, acute at the base, 

 glabrous on both surfaces, pallid beneath, veinlets transversely elevated 

 primary veins 9-10 on each side, inconspicuous alwve, elevated beneath, 

 costas sulcate above, prominent beneath, petioles 3 cm. long, sulcate 

 above, glabrous. Fruits apple-like, depressiugly glolwse, 3 cm. long, 3 cm. 

 broad, yellowish when matured. 



HAB. Binkiho. 



This differs from P. Mallus in the serration and the shape of the leaves. 



11. Cototieaster MEDIK. 



Dichotomoiis Key to the Formosan Species. 



(1) Flowers in cymes, cymes terminal G. formosana. 



Cymes on shortened lateral branches. (2) 



(2) Stones completely included C. tailoensis. 



Stones partly included, the upper half exposed C. Koizumii. 



Cotoneaster formosana HAYATA Materials for a Flora of Formosa p. 

 101. Branches straight, rubescent, cinereo-pubescent, at last glabrate, 

 sometimes with branches turning to the spines. Leaves 3-5 clustered at 

 the apex of the leaves, shortly petioled, oblong-obovate, 23 mm. long, 12 mm. 

 broad, truncately emarginate at the apex, truncate at the base, quite entire 

 canescently pubescent, at last glabrous above, pallid beneath, petioles 

 4 mm. long. Flowers white ? 7 mm. in diameter, corymbose, (corymbs 

 bracteate), at the axils of the upper leaves, or terminal. Calyx 4^ mm. in 



