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Rh Franchet, ''Journ. de Bot.,'' 1898, p. 318.

1. Pterocarya Paliurus, Batalin, ''Act. Hort. Petrop.'' xiii. 101 (1892); Franchet, ''loc. cit.; J.H. Veitch in Journ. R. Hort. Soc.'' 1903, xxviii. 65, fig. 26. China: mountains of Szechwan, Hupeh, and Chekiang.

(Sectio nova).


 * Buds naked, without scales.

2. Pterocarya stenoptera, C. DC. China, Tonking.

3. Pterocarya hupehensis, Skan, ''Journ. Linn. Soc. (Bot.''), xxvi. 493 (1899). China: mountains of Hupeh.

4. Pterocarya Delavayi, Franchet, ''Journ. de Bot.'' 1898, p. 317. China: mountains of Yunnan.

5. Pterocarya caucasica, C.A. Meyer. Persia, the Caucasus.

Tree attaining 100 feet. Twigs glabrous except for some pubescence at the tips. Rachis of the leaf not winged. Leaflets fifteen to twenty-seven, membranous; under surface without glands and glabrous except for stellate pubescence on the nerves and in their axils. Fruit, ½ inch broad, glabrous; wings semi-orbicular. In cultivation. See description below.