(78 ) 
LAURACEAE. 
Laurus Linn. Sp. Pl. 369. 1753. 
As commonly restricted, the existing species are but two, 
of southern Europe, the Canary Islands and Madeira. The 
family is large and chiefly tropical. The fossil species are 
numerous, over thirty being found on this continent. It may 
be remarked, however, that there is considerable uncertainty 
in the generic diagnoses which are based upon nothing but 
leaf remains of the Laurineae. Remains referred to Laurus 
are common in the European Tertiary and Heer records one 
species from the Tertiary of Siberia, besides four at Atane, 
three at Patoot, and four in the Tertiary of Greenland. The 
American species are distributed as follows: Raritan 3, 
Island Raritan 4, Dakota 11, Mill Creek 1, Woodbine 1, 
Montana 3, Vancouver 1, Cret. of N. W. Terr. 1, Laramie 
4, Livingston 1, Denver 3, Ft. Union 2, Tertiary of Yellow- 
stone Park 2, Eocene 1, Eolignitic 4, Miocene 7. 
Laurus Horvaz Heer. Pl. 50. f. 7, 8; pl. 52. f. 7, 8. 
Laurus Hollae Heer, Fl. Foss. Arct. 6’: 76. pl. 33. f. 
13; 44. f- 56; 45. f. 3. 1882. Lesq. Fl. Dak. Group, 
92. pl. 12. f. 8. 1892. Hollick, Trans. N. Y. Acad. 
Sci. 12:7. pl. 2. fi 717. 1892. 
Previously known from the Dakota Group, Kansas; Cre- 
taceous, Staten Island; Atane schists, Greenland. Ours are 
rather poor specimens for positive determination; as far as 
they go they agree admirably with the above species. 
Laurus PROTEAEFOLIA Lesq. 2. 47. f. 9; pl. 49. f. 6. 
Laurus proteacfolia Lesq. Bull. U. S. Geol. and Geog. 
Surv. Terr. 1: 393. 1876; Ann. Rep. 7d¢d. 1874: 
342. pl. 5. f. 1, 2. 1876; Cret. & Tert. Fl. 52. pi. 3. 
J: 9,10; pl. 16. f. 6. 1883; Fl. Dak. Group, 92. 1892. 
Lesquereux’s specimens were from the Dakota Group at 
Morrison, Col., and Fort Harker, Kansas. The Cliffwood 
forms which Hollick refers to Lawrus plutonia Heer are some- 
what larger than the majority of Heer’s figures of that 
species, and our remains which seem to be species of Laurus 
