Geological Survey Bulletin 204 Fossil Flora of the John Day Basin, Oregon

Family SIMARUBACEÆ.

AILANTHUS OVATA Lesq.

AILANTHUS OVATA Lesq., Cret. and Tert. Fl., p. 254, Pl. LI, figs. 7, 8, 1883.

The type specimens only are known. I have examined these specimens, both being preserved on the same piece of matrix. The figure of the branch shows the buds much clearer than they appear on the specimen, but it is perhaps correctly referred. The samaras are described by Lesquereux as being rounded at one end and acute at the other. An examination shows that the bluntness described is due to the ends of one or two being broken or covered by matrix, while in one well preserved both ends are similar and acute.

Locality.—Bridge Creek, Grant County, Oregon. Collected by C. D. Voy. (Types in Mus. Univ. Cal., Nos. 1765, 1766.)