574 



WARREN S. SMITH 



Genus Sequoia 



Sequoia nordenskioldi (Heer) (Figs. 5, A, 7, C, 8, B) 



Heer: Flora Foss. Arct., II ("Miocene Spitzbergens," 1870), 36; Taf. II, 



Fig. 13/;; Taf. IV, Figs. 1a, b, 4-38. 

 Newberry: Later Extinct Floras of N.Am., p. 20; PI. XXVI, Fig. 4. 



Sequoia nordenskioldi is represented by a few leafy branches 



occurring with the Taxodium, but 

 in addition by a handsome cone. 

 The cross-section is given in Fig. 5. 

 The form is referred to S. norden- 

 skioldi rather than to S. langsdorfii 

 because the leaves are very little if 

 at all narrowed before they join 

 and run down the stem. The 

 cone is almost identical with that 

 of Heer {op. cit., Taf. IV, Fig. 4a), 

 except that these dimensions are 

 20X22 mm., not 16X13 mm., as 

 Heer gives, and that here no leaves 

 remain on the branch. This cone 

 is not as elongate as in S. langsdorfii. 



Fig. 8. — A, Pterospermites whitei. 

 B, Sequoia nordenskioldi i. C, Sapin- 

 dus obtusifolius. (§ natural size.) 



Dicotyledons 



There are no identifiable monocotyledons found in these beds. 



Dicotyledons are represented by ten fairly well-preserved forms, 



and by fragments of many more. The genera are: Ficus, Juglans, 



Hicoria, Laurus, Magnolia, Populus, Protoficus, Pterospermites, and 



Sapindus. 



Genus Ficus 



Ficus ungeri (Lesq.) 



Lesquereux: Supplement Ann. Rept., 1871, p. 7; Fig. 1. 

 Hayden Survey, VII (1878), 195; PL XXX, Fig. 3. 



Numerous fragments in F 831+ 50 beds are referred doubtfully 

 to this form. The open-bowed secondaries in almost opposite 

 pairs and the "very entire" margin are identical. Noted from 

 Green River group, Middle to Upper Eocene. 



