RATINDACEJE. 153 



Nepltelium Longana CAMB. ; Bot. Mag. t. 4096 ; BENTH. Fl. Hongk. 

 p. 47 ; HIERN in HOOK. f. Fl. Brit. Ind. I. p. 688 ; FORBES et HEMSL. Ind. 

 Fl. Sin. I. p. 139 ; HENRY List PI. Formos. p. 29. 



Dimocarpus Longan LOUR. Fl. Oocliinch. ed-WiLLD. p. 288. 



Scytalia Longan ROXB. Fl. Ind. H. p. 270. 



HAB. Tamsui, Bioritsn, Maruyama, Shiriu. 



DISTRIB. China ; in Hongkong ; India. 



i 



7. Pometia J. R. et FORST. 



Pometia pinnata J. R. et FORST " Char. Gen. p. 110. t. 55 " ; HOOK. 

 f. Fl. Brit. Ind. I. p. G91, (in nota P. tomentosa} ; HAYATA Materials for 

 a Flora of Formosa p. 64. 



HAB. Taito: Beiriu, by T. KAWAKAMI and Z. KOBAYASHI, May, 1906, 

 (No. 1522). 



DLSTRIB. Pacific islands. 



8. Acer LINN. 



Dicholomous Key to the Formoscm Species. 



(1) Leaves entire not lobed. (2) 



Leaves more or less lobed or very slightly lobed, lobes serrate. (4) 



(2) Leaves ovate, broadest at the basal portion. . .A. ollongum var. Itoanum. 



(not in Formosa.) 

 Leaves obovate, broadest at the upper portion or lanceolately oblong. (3) 



(3) Leaves obovate, broadest at the upper portion A. oblongum. 



Leaves elongately oblong, acuminate at the apex. . . A. alkopurpurascens. 



(4) Leaves very slightly lobed only on the margin ; length of lateral lobes 



never exceeds ^ of that of leaves. (5) 

 Leaves lobed, length of lateral lobes exceeds .1 of that of leaves. (7) 



(5) Leaves slightly lobed on the margin, lateral lobes elongately caudate. . . 



A. nibescens. 



Leaves slightly lobed, lateral lobes very obscure. (6) 



(6) Leaves obscurely crenulato- serrate A. cavdatifolium. 



