304 Annals of the Carnegie Museum. 



Occurrence: All five specimens are from the Dakota Sandstone 

 (Cretaceous). No. 2j is from Ellsworth County, Kansas, Baron de 

 Bayet Collection, Accession No. 2348; Nos. 2^a, 2^b are from Salina, 

 Kansas, x-\ccession No. 4799 ; No. 2^c, locality not given, Accession 

 No. 4799; No. 6s, Fort Ellsworth, Kansas, Accession No. 4799. All 

 in Carnegie Museum, Pittsburgh, Pa. 



32. Sassafras mirabile Lesquereux. 



Sassafras mirabile Lesquereux, Hayden's Report, 1872, p. 424; Cretaceous 

 Flora, U. S. Geological Report of the Territories, VI, 1874, p. 80, PI. 12. 

 fig. I ; The Cretaceous and Tertiary Floras, U. S. Geological Survey of the 

 Territories, VIII, 1883, p. 56; The Flora of the Dakota Group, U. S. 

 Geological Survey, Monograph XVII, 1S92, pp. loi, 102, 231. 

 Newberry, The Later Extinct Floras of North America, U. S. Geological 

 Survey, Monograph XXXV, 1898, pp. 105, 106, PI. i, fig. 4. 

 Berry, Notes on Sassafras, Botanical Gazette, XXXIV, Dec., 1902. pp. 426- 

 450. 



Description : Leaf coriaceous, three-lobed, about 12 cm. from apex 

 of middle lobe to the base and about 12 cm. between the apices of the 

 two outer lobes ; base decurrent to a petiole about 2 cm. long. " The 

 three primary nerves separate at a comparatively short distance above 

 the decurrent base of the leaves, the lateral ones bearing outside in 

 the lower part one or two thin marginal veinlets, which follow the 

 borders in successive bows, joining the point of the lowest secondary 

 veins ; these are all simple, entering the points of obtuse teeth, which 

 mark the borders of the lobes from the base to the point." — Les- 

 quereux. The first pair of secondaries originating from the middle 

 primary vein are formed about one-third of the distance from the 

 base to the apex and extend to the sinuses. In outline the leaf re- 

 sembles our modern Platanns occidentalis. 



Occurrence : Ellsworth County, Kansas, Dakota Sandstone (Cre- 

 taceous). Baron de Bayet Collection, Accession No. 2348, Carnegie 

 Museum. Pittsburgh, Pa. (No. 6). Another specimen {No. 6a) is 

 from Fort Harker, Kansas, Leo. Lesquereux Collection (C. M., Ac- 

 cession No. 4799). 



33. Sassafras Harkerianum Lesquereux. 



Sassafras Harkeriana Lesquereux, Hayden's Report, 1872, p. 425. 



Sassafras Harkerianum Lesquereux, Cretaceous Flora, Report of the U. S. 



