DESCRIPTIONS OF SPECIES. 33 



such was the case, it resembled in general aspect the leaves of S. orbicu- 

 laris Heer (PL Tert. Helv., Vol. Ill, p. 167, PI. CXLVII, figs. 18, 19), 

 and perhaps as much those of the living 8. rotundifolia. 



From S. orbicularis it differs, however, in the shortness of the exterior 

 pair of lateral nerves and in the polygonal reticulation of the secondary 

 nervation. 



Formation and locality: Tertiary (Eocene?). Birch Bay, Washington. 



Order IRIDACE^E. 



Trts sp.? Newb. 



PI. XXII, fig. 6. 

 Ills. Cret. and Tert. PI. (1878), PL VII, fig. 6. 



Note.— The only manuscript relating to this specimen which I have been able 

 to find is the above designation, in pencil, on the margin of the plate. Locality 

 not known. — A. H. 



MONOCOTYLEDON OF UNCERTAIN AFFINITIES. 



Monocotyledon gen. et sp.? Hollick. 



PL XL VI, fig. 9. 



Note. — This figure apparently represents the lower portion of a leaf of some 

 monocotyledon, but neither the specimen nor any manuscript referring to it was 

 found except a memorandum of the locality on the plate margin, and there is no 

 indication of Dr. Newberry's ideas concerning its affinities. — A. H. 



Formation and locality: Tertiary (Miocene). Bridge Creek, Oregon. 



DICOTYLEDONE^E. 



Order JUGLANDACEiE. 



Juglans nigella Heer. 



PL LI, figs. 2 (in part), 4. 



Fl. Foss. Arct., Vol. II, Abth., II (1869), p. 38, PL IX, figs. 2-4. 



Note. — So identified by Dr. Newberry, as indicated by memorandum on 

 margin of plate. — A. H. 



Formation and locality: Tertiary (Miocene). Admiralty Inlet, Alaska. 



MON XXXV 3 



