MIOCtiNE FLORA— ALASKA. 261 



NYSSACE^. 



Nyssa arctica, Heer. 

 " Fl. Arct.," ii, p. 477, pi. xliii, fig. 12c ; 1, figs. 5, 6, 7. 



The fruit which I refer to this species is of the same size and form as 

 fig. 6, I. c, but less distinctly striate lengthwise; the cross-wrinkles slightly 

 marked by Heer in fig. Qb enlarged, being as prominent as the longitudinal 

 striae. The fruit, somewhat deteriorated by maceration, most probably 

 represents the same species, abundantly found in Greenland. 



Hab. — Unga Island, Alaska. 



Diospyros anceps, Heer. 

 " Fl. Tert. Helv.," iii, p. 12, p!. cii, figs. 15-18 ; " Beit, zur Sibir. Fl.," p. 42, pi. xi, fig. 7. 



The leaves agree by all the characters with Heer's species, especially 

 similar to figs. 16, 17 of the "Fl. Helv.," I. c, the smaller leaf being of the 

 same size as fig. 16. The other specimen, which is fragmentary, is much 

 like fig. 7 of the Siberian Fl. The leaves are broader than in D. Alaskana, 

 the lateral nerves more distant, &c. 



Hab. — Cook Inlet, Alaska. 



ERICINE^E. 



Vaccinium reticulatum, Al. Br. 



Heer, " Fl. Tert. Helv.," iii, p. 10, pi. ci, fig. 30. 



Leaves petiolate, oval, very entire, obtuse at the apex, narrowed at the base in 

 rounding to a short alate petiole ; lateral nerves open, few, interspersed with tertiary 

 shorter ones; surface deeply reticulate. 



The leaves, from their size, shape, and nervation, correspond with those 

 described by Heer, I. c, the only difference being that one of the leaves I 

 had for examination, the largest, has the short petiole winged. In fig. 30 

 of Heer the petiole seems also bordered in the upper part by the decur- 

 rent base of the leaf, but the appearance is less distinct. Moreover, there 

 are other leaves in the same collection of Mr. Dall which are smaller and 

 with naked petiole. The difference is not, therefore, of specific value. 

 Bab. — Cook Inlet, Alaska. 



