286 WILSON EXPEDITION TO CHINA 
2444, 2684). Western Szech’uan: west and near Wén-ch'uan 
Hsien, woods, alt. 1000-1300 m., July and October 1908 (No. 500°; 
tree 10 m. tall, 65 cm. girth, flowers nearly white). 
A common, rather slender, loosely branched tree with grey bark deeply furrowed in 
adult, smooth in young trees. The leaves vary considerably in size and shape 
and also i in degree of serration and pubescence. A colloquial name for this tree 
around Ichang is ** Yu-kuei-chou.” 
ITOA Hemsl. 
Itoa orientalis Hemsley in Hooker’s Icon. XXVII. t. 2688 (1901). 
Western Szech’uan: thickets around base of Mt. Omei, alt. 600 
m., September 1908 (No. 3057; small tree, 6 m. tall); ravine, Mt. 
Omei, alt. 600 m., October 1903 (Veitch Exped. No. 3228). Yunnan: 
Mengtze, alt. 1600 m., A. Henry (No. 9408). 
Usually a slender tree, with light grey bark and tough wood. 
