98 THE FLORA OF THE DAKOTA GROUr. 



Daphnophyllum angustifolium, sp. nov, 

 PI. XXXVI, Fig, 8. 



Leaves coriaceous, entire, long and narrowly lanceolate, gradually taper- 

 ing u])ward to a long, acuminate point, more rapidly downward to the thick 

 median nerve; secondaries at an acute angle of divergence, close, parallel, 

 equidistant, camptodi-ome. 



The genus Daphnophyllum has been admitted by Heer for the descrip- 

 tion of some leaves with ('amj)todrome secondaries distributed somewhat 

 like those of species of Ficus and Laurus. 



This leaf is referred to this genus on account of its great affinity in 

 form, size, and punctulate sui-face to leaves of some species of Laurus, being 

 especially similar to those of L. priiiii(/enki Ung., var. crdacea Lesq. (PI. XIIL 

 Fig. 4), and others of the Tertiary of Europe, while at the same time, by 

 the closeness of the simple camptodrome secondaries, it has a degi'ee of 

 likeness to species of Ficus, as F. multinervis Heer, of the Tertiary of Europe, 

 and F. atavina Heer, of the Cretaceous of Greenland. It is 12*"" long, 2.5"" 

 broad at the middle, long-acuminate, and tapering also to the base (broken 

 above the point of union to the petiole) ; the secondaries, very numerous, 

 3"°™ to S-S™"" distant, diverge at angle of 30° and curve slightly in passing 

 toward the borders, following them in successive simple bows. The surface 

 is rugose or punctulate, irregularly marked by small dots like the impres- 

 sion of basilar points of hairs. 



The leaf is comparal)le to that of Ficus dcgener Ung., as figured in 

 Watelet (PI. Foss. du liassin de Paris, PI. xlii. Figs. 3-5). linger describes 

 his species in Fl. von Sotzka, p. Kio, PI. xiii. Figs. 1-7, as having the leaves 

 broadly lanceolate, obtuse, narrowed to a short, thick petiole, dentate, crenu- 

 late; primary nerve strong; secondaries indiscernible. As described by 

 Watelet, the leaves are linear-lanceolate, entire ; the secondaries close, 

 numerous, canq3todi-ome, and crossed at right angles by distant nervilles. 

 One of the leaves is punctulate and the areolation, or rather the secondary 

 nervation, is not distinct. ( )ur leaf well agrees with this last description, 

 but certainly not with that of linger, though Watelet sees no difference 

 between his leaves and those described by Uuger. 



Habitat : Ellsworth Coimty, Kansas. No. 97 of the museum of the 

 Univei'sity of Kansas ; A. Wellington, collector. 



