MATERIALS FOK A FLORA OF FORMOSA. 67 



Prov. Sinano, 1864 leg. Tschonoski." The present plant differs from 

 it in the leaves with larger serration and longer side lobes placed on 

 a little upper portion. Our plant is also very near A. rufinerve from 

 which it is distinguishable by the leaves with more round or slight- 

 ly cordate base; from A. erosum Pax, by the quite glabrous leaves. 



Acer oblongum var. Itoanum Hayata n. v. 



Acer oblongum var. microcarpum T. Itö in Itö et Matsum. Tent. 

 Fl. Lutch. p. 387. (non Hiern.) 



Pami cinereo-rubescentes, glabri, ramulis fusco-rubescentibus, 

 teretibus lenticellis minutis parce dispersis. Folia opposita, longe 

 petiolata, ovata, 7 cm. longa, 33 mm. lata, apice acuminata, (acumi- 

 nibus circ. 1 cm. longis apice obtusis), margine intégra vel leviter 

 undulato-integra, utrinque glabra, concolora, vel subtus glauca, 

 costis venis venulisque utraque leviter elevatis reticulatis, basi 

 3-nervia, nervis basilaribus a nervo centrali angulo 40°-50° divari- 

 catis, venis primariis nervi centralis utraque latere 2, coriacea. 

 Fructus in cymas terminales dispositi. Carpella glabra, cum alis 

 circ. 3 cm. longa, loculis leviter nervosis, a medio leviter elevatis, 

 gradatim ad alas abeuntibus, alis cultriformibus semi-oblongis, 2 

 cm. longis, 1 cm. latis, latere exteriore rectis, latere interiore 

 rotundatis apice obtuso-rotundatis, sinibus inter alas rotundato- 

 angustatis, alis latere exteriore angulo 40° divaricatis. 



TTah. Loo-choo : Kushimajiri, leg. S. Tanaka, Mai. 1801, et 

 Prof. .1. ^Iatsibiura; Nagodake, leg. G. Nakahara, Aprili. 1007. 



The present plant was erroneously regarded by myself and 

 otlirr botanists as identical with .1. oblongum Wall. At Kew, I 

 liavt^ C(^mpii^ed the plant with the type of the named species and 

 found tliat they do not entirely agree. I have examined several 

 forms of Acer oblongum from the Himalayas, Cliina and Formosa, 



