LESQUEREux] PALEONTOLOGY LIGNITIC FLORA SPECIES. 401 



Though these remains are referable to the same kind of vegetables as 

 those published by D'Ettiughausen, their relation to the genus Pisonia 

 is uncertain. 



Habitat. — Black Butte, very rare. 



CiNNAMOMIIM AFFINE, Lesqx. 



From the comparison of a large number of specimens representiug 

 various forms of this species, (mentioned first in Am. Jour. Sc, vol. 

 xlv, p. 206,) it proves to be, as I supposed, a mere variety of G. Mis- 

 sissippiense, Lesqx., described in Trans. Phil. Soc, vol. xiii, p. 418, PI. xix, 

 Fig. 2. 



Habitat. — The species is common at Golden, and found in the whole 

 thickness of the North American lignitic measures. 



Daphnogene Anglica(I), Heer. 



This form has been described from fragmentary specimens as Cinna- 

 momum Ros87nwssleri, Heer, in Report for 1872, (p. 379.) From a more 

 complete leaf, it appears referable to Heer's species as described in Flor. 

 Helv., (vol. iii, p. 315.) He says that the leaves are ovate-lanceolate, 

 long-acuminate, triplenerved, with the middle and lateral nerves branch- 

 ing, remarking still that it differs from D. melastomaeea, Ung., by the 

 equilateral base of the leaves and the lateral veins at a more acute angle 

 of divergence. In comparing the American leaf with Unger's species, 

 the same difference is marked as that indicated by Heer, and it appears, 

 therefore, that these leaves of ours are, if not identical, at least very 

 closely allied to the Eocene species of England. 



Habitat. — Golden, Capt. Berthoud. 



DiosPYEOS BRACHYSEPALA, Heer. 



Leaves broadly oval or slightly obovate, obtuse, narrowed in a curve 

 to the base, entire, rather membranaceous, but not thick ; secondary 

 veins alternate, curving to and along the borders, mostly simple or with 

 few branches, deflected downward in reaching the middle nerve. Though 

 this leaf is not in a perfect state of preservatiou, the details of areola- 

 tion being obsolete, it agrees in its recognizable characters with Heer's 

 description of the species in Fl. Tert. Helv., HI, (p. 11, PL, cii, Figs. 

 1-14,) resembling especially Fig. 6 for its form and Fig. 2 for the nerva- 

 tion or the distribution of the lateral veins. Leaves of the same kind 

 have been described in Eeport for 1872, (p. 394,) from Black Butte. 



Habitat. — Sand Creek, Colorado, A. Ji. Marwine. 



Viburnum marginatum, Lesqx. 



This species is described from Black Butte, the only locality where it 

 has been discovered tillnow, in Eeport for 1872, (p. 395.) By its size and 

 the nervation of its leaves, it i8 related to Viburnum giganteum. Sap., (Fl. 

 Foss. Ae Sezanne, p. 370, PL ix, Fig. 1,) distinct, however, by the more 

 tapering point of this last species, and the form of its triangular some- 

 times double dentate teeth. The anthor remarks also the relation 

 of his species to the American living V. lantanoides, and to V. erosiim, 

 Thb. of Japan, to which the species of Black Butte has still more afliuity 

 than the Eocene species of France. 



Viburnum Lakesii, sp. nov. .. 



Leaf coriaceous, round in outline, obtuselyC?) trilobafe (the upper part 

 is broken,) with obtuse sinuses ; serrate along the borders to near its 

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