MATERIALS FOR A FLORA OF FORMOSA. 67 
Prov. Sinano, 1864 leg. Tscuonosxr.” The ptesent 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 Hayara n. v. 
Acer oblongum var. microcarpum T. Ivo in Ivo et Marsum. Tent. 
Fl. Lutch. p. 587. (non Hrery.) 
Rami 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 em. longis apice obtusis), margine integra vel leviter: 
undulato-integra, utrinque glabra, concolora, vel subtus glauca, 
costis venis venulisque utraque leviter elevatis reticulatis, basi 
d-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 Jeviter elevatis, 
gradatim ad alas abeuntibus, alis cultriformibus semi-oblongis, 2 
em. longis, 1 ecm. latis, latere exteriore rectis, latere interiore 
rotundatis apice obtuso-rotundatis, sinibus inter alas rotundato- 
angustatis, alis latere exteriore angulo 40° divaricatis. 
Has. Loo-choo: Kushimajiri, leg. S. Tanaka, Mai. 1891, et 
Prof. J. Marsumura; Nagodake, leg. G. Naxanara, Aprili. 1907. 
The present plant was erroneously regarded by myself and. 
other botanists as identical with A. oblongum Watt. At Kew, I 
have compared the plant with the type of the named species and 
found that they do not entirely agree. I have examined several 
forms of Acer oblongum from the Himalayas, China and Formosa, 
