FOSSIL FLORA. 70] 



This line .species belong-s certainl}- to the g-euus Mao-nolia, as attested 

 by the shape and the forking, camptodrome secondaries. It is, however 

 quite unHke any of the other species found in the YeUowstone National 

 Park. Perhaps its clo.sest relation is 31. ralifornica Lx.,^ from the Chalk 

 Bluffs of California. It is different in shape, l)ein<;- ovate in.stead of Ijroadlv 

 oval, and has somewhat different secondaries. The large quath-angular 

 finer nervation is similar in both. 



It does not approach very closely to either nf tlie living- American 

 species, being- perhaps closest to M. tiniiiiii/afa L., the well-known cucumber 

 tree.^ The shape of the leaves is i)ractically the same, bur the nervation 

 differs somewhat. 



I have named this species in honor of Prof George E. Culver, who 

 as.sisted in maldng the collection from this place. 



Habitat: East bank of Lamar River, ])etween Cache and Calfee creeks; 

 collected by F. H. Knowlton and George E. Culver, August, 1888. 



Magnolia ? pollarui n. sp. 

 PL LXXXI, figs. 9, 1(1. 



Petals of firm texture, elliptical or elliptic-ovate in outline, narrowed 

 below, rounded-ol)tuse above; nervation of numerous approximateh- par- 

 allel nerves aboiit 2 nun. apai-t. 



The best preserved of these 2 specimens (fig. 9) has T.o cm. in length 

 preserved, and was probably fully 8.5 cm. in length when perfect. It is 

 3 cm. broad in the middle, and is narrowed at base to a point of attach- 

 ment some 5 or 6 mm. broad. The upper point is unfortunately destroyed, 

 but it seems probable, from tlie appearance of the margin and nerves, that 

 it was obtuse. The nerves arise from the l)asal part and run approximately 

 parallel, spreading slightly in the middle and converging toward tlie apex. 

 In the middle these nerves are between 3 and 4 mm. apart, Init in the apex 

 they are separated by only about 2 mm. There is some evidence of inter- 

 mediate nerves, or possibly cross veinlets, l)ut these are s<:) indistinct that 

 a positive statement concerning tliem can not be made. 



The other specimen (fig. 10) is a trifie over 5 cm. in length, but lacks 

 both upper and lower parts. It was probably 6.5 or 7 cm. in length when 



'Mem. Mus. Comi). Zixil., Vol. VI, No. 1, p. 2,5, PI. VI, figs. 5, 7. 

 = Cf. Sargent: Silva of X. A., Vol. I, Pis. IV, V. 

 3ION XXXII, PT II 4(j 



