(>2 FOSSIL FLORA OK THE JOHN DAY HASIN, OKEGON. [hvi.l. 20-1. 



Family HAMAMELIDACE^E. 



LigiiDAMBAK KURor^:uM Al. Br. 



LiijriDAMBAK KUROP.EUM Al. Br. Newberry, Later Kxtinct FloraH, p. 100, PL XLVII, 

 iiiis. 1-3, 1898 (1899). 



A,s Nevvl)orrv well .says (op. cit. p. lol), thi.s species is hardly to be 

 distinguished from large leaves of Lesquereux's Llquidainljar call- 

 fhriueuin^ from the Auriferous gravel of California. But it appears 

 that the large form is rare among the Auriferous gravel examples, 

 most of them being much smaller and only three lobed. It therefore 

 seems best to keep them apart for the present, although they are 

 undoubtedly close. Its identity with the European form is also a 

 matter for future settlement. 



Locality. — Bridge Creek, Grant County, Oregon. Collected by 

 Rev. Thomas Condon (U. S. Nat. Mus., Nos. 7094, 7095, 7096). 



LiQUIDAMBAR EUROPIUM I'ATULUM, n. var. 

 PI. X, fig. 5. 



Liquidamhar europxuin Al. Br. Lesquereux, Proc. U. S. Nat. Mus., Vol. XI, p, 14, 



1888. 



This specimen, the only one thus far found at this locality, was 

 referred b}^ Lesquereux, without comment, to Z. europse,iLm.. It is a 

 well-known fact that this is a very variable species, which more than 

 likely covers several distinct forms, but the leaf under consideration 

 differs markedl}^ from any that I have seen fig-ured in European 

 books. It is distinctly different from the large five- to seven-lobed 

 leaves found at Bridge Creek, nor is it the same as Lesquereux's Z. 

 calif (yrnicum^ from the Auriferous gravels. I have therefore ventured 

 to give it subspecific rank under the w^iwq oi L.europanuii 2>atulum. 

 It may be described as follows: Leaf coriaceous in texture, three-lobed 

 and much broader than long; central lobe obtusely elliptical; lateral 

 lobes lanceolate-acuminate, nearly at right angles to the central lobe; 

 margin finelj^ and sharply serrate throughout. 



The width of this leaf is about 14 cm. and the length only about 8 

 cm. The central lobe is about 4 cm. broad and the same in length, 

 while the lateral lobes are but little more than 2.5 cm. broad. 



Locality. — Van Horn's ranch. South Fork of John Day River, about 

 12 miles west of Mount Vernon, Grant Count}^, Oregon. Collected 

 by Maj. Charles E. Bendire (U. S. Nat. Mus., No. 8544). 



LiQUIDAMBAR PROTENSUM ? linger. 



LuiUiDAMiiAK I'ROTENSUM ? UiigBr. Lesqucreux, Proir. IT. S. Nat. Mus., Vol. XI, p. 

 13, PI. VIII, fig. 3, 1888. ** 



1 regard this identification as extremely doubtful. The specimen 

 lacks practically all of the margin, and other of its characters have 



