98 WILSON EXPEDITION TO CHINA 
Acer nikoense Maximowicz in Bull. Acad. Sci. St. Pétersbourg, XII. 
227; in Mél. Biol. VI. 370 (1867). 
The typical form is known only from central Japan. 
Acer nikoense, var. megalocarpum Rehder, n. var. 
A typo recedit foliis subtus densius villosis, foliolis majoribus, medio 
saepe 12-16 cm. longo et brevius petiolulato, fructibus majoribus, alis 
loculo incluso 5-5.5 cm. longis et 15-17 mm. latis, gemmis dense 
cinereo-pubescentibus. 
Western Hupeh: north and south of Ichang, woods, rare, alt. 
1200-1800 m., May 1907 (No. 638, in part); Hsing-shan Hsien, alt. 
1500-1800 m., May and November 1907 (No. 638, in part); Ching-lo 
Hsien, alt. 1200-1800 m., May 1907 (No. 638, in part); Patung Hsien, 
alt. 1200-1800 m., May 1907 (No. 638 in part); no locality, May 1900 
(Veitch Exped. No. 368). 
The Japanese tree is smaller in every part and less pubescent than the Chinese 
variety. 
