DESCRIPTION OF SPECIES. 153 



Leguminosites vha seolites '? Heer. 

 PL LV, Eig. 10. 



Fl. Foss. Arct., vol. 3, Abth. 2, p. 118, PI. xxxiv, Figs. 7-11. 



Leaf short petiolate, elliptical, acuminate; secondaries emerging at an 

 acnte angle of divergence, thin, parallel, curved, and camptodrome. 



It is not certain that the specimen is referable to this species, which is 

 represented by eleven different leaflets by Heer. He describes the leaflet as 

 inequilatei-al. All are mere fragments, none being complete, and therefore it 

 is not possilde to make a satisfactory comparison. The lower part of our 

 leaflet is oval, as in Fig. i) of Heer's PI. xxxiv (loc. cit.); the secondaries 

 are of the same character, but the leaf from Kansas is narrowed upward into 

 a prolonged acumen and its base is ecjuilatcral. For this, liowe\'er, the 

 figures of Heer do not appear inequilateral. 

 . Habitat: Kansas. 



INGA CRETACEA, sp. DOV.' 



I'l. LV, Fig. 11. 



Leaves long, narrowly lanceolate, gradually acuminate, narrowed at 

 base to a short petiole; midrib narrow; secondaries oblique, mostly opposite, 

 camptodrome. 



This leaf, which is preserved entire, is !)""' long and 2"'" broad below 

 the middle, has a short, thick petiole 1"'" long, is unequal on the sides, and has 

 about foui-teen pairs of very oblique secondaries diverging 30° from the 

 mi(hil) and a little ciu-ved in passing toward the borders, which they follow 

 in sim|)le festoons. This leaf might be compared to mau}^ species of Legu- 

 minosites. But the more closely related of those recognized in a fossil state 

 is /. Icari Vng. (Fl. v. Kumi, p. (53, PI. xvi, Fig. 10). There is opjjosed for 

 comparison a specimen of the living /. smiialata Mart. 



The leaf from the Dakota Group is a little narrower and the seconda- 

 ries are at a more acute angle of divergence. A number of I'ertiarA' leaves 

 referred by various authors to Cassia have also a, great analogy of character 

 with this one, l)eing, however, generally shorter. 



Habitat: Near Fort Harker, Kansas. No. 27(!T of the U. S. National 

 Museum. 



' This species was figured aud described under the iiiinio of " iei/MmiHosi(es Ungey'i , &f. nov . " but 

 ill a list of Dakota grouj) plants purchased for the U. S. Geological Survey and sent by Prof. Lesque- 

 reux at a liiter date than that on which work on the manuscript occurred, the type specimen is named 

 Inga cretacea. It is therefore clear that his iutentiou was to change it from its problematical position 

 under Leguminosites to the more deliiiite position under Inga, and I have done so. — F. H. K. 



