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see Cyclocarya paliurus
A tree 50 or more ft high, the young shoots downy, glandular. Leaves 8 to 12 in. long composed usually of seven or nine leaflets, which are oblong or oval, very obliquely tapered or rounded at the base, pointed or blunt at the apex, finely toothed, 21⁄2 to 5 in. long, 1 to 21⁄2 in. wide, dark glossy green, and glabrous except for fine down on the midrib on both surfaces; common stalk not winged, downy. Male catkins slender, 21⁄2 to 4 in. long, frequently in pairs. Fruiting catkin 8 to 10 in. long, each nut surrounded by a wing, the whole forming a circular disk 11⁄2 to 21⁄2 in. across.
Native of the mountains of Central China; discovered by Henry in 1888, and introduced by Wilson for Messrs Veitch in 1901. The fruits of this species are very remarkable, suggesting miniature cymbals; in having the wing continuous all round the nut, they distinguish it from all other species. Seeds were again sent by Wilson during his later journeys.
The proposed new genus Cyclocarya (see synonym) is reduced to the level of a subgenus of Pterocarya by Wayne E. Manning in Bull. Torr. Club, Vol. 102, pp. 157-66 (1975).