DESCRIPTION OF SPECIES. 189 



Habitat: Ellsworth County, Kansas. Nos. 231), "iSc, 50, 51, etc., of 

 the museum of the University of Kansas. Collected by A. WeUiugton. 



Protophyllum Sternbeegii Lesq. 

 PI, XLII, Fig. 1. 



Cret. Fl., p. 101, PI. xvi ; PI. xviii, Fig. 2 ; Cret. and Tert. Fl., p. 89. 



The specimen here tig-ured shows very clearly the characters of the 

 species. 



The leaves are ovate, obtusely pointed, truncate at the base, wliicli 

 covers by a narrow border the upper part of the petiole, and the basilar 

 jirimaries are in two pairs, the up})er at right angles, the other pair diverg- 

 ing downward into the prolonged base of the leaves. Contrary to the 

 general distribution of the secondaries, those of this species are at an acute 

 angle of 40°, and are alternate from the base of the leaf 



Hal)itat: Ellsworth County, Kansas. No. 22 of tlie museum of the 

 University of Kansas; A. Wellington, collector. 



Protophyllum undulatum, sp. nov. 

 PI. XLII, Fig. 2. 



Leaf large, coriaceous, round-ovate, narrowed to the apex (broken), 

 rounded at base, distinctly and regularly undulate or obtusely dentate; 

 secondaries basilar, tlu-ee or four pairs, derived from the base of the midrib, 

 the upper at right angles, the lower cur\ang downward into the prolonged 

 base of the leaf; secondaries, five to six paii-s, the lower opposite, all 

 parallel and equidistant, at an angle of divergence of 45° to 50°. 



This form or species is in its characters intermediate between P. Stern- 

 hcrf/ii Lesq. and I', quadratum Lesq. (Cret. Fl., p. 104, PL xix. Fig. 1). The 

 leaf is broader than that of the first-named species and has its base more 

 prolonged, has a larger number of basilar nerves, the lower secondaries 

 being opposite and the borders evidently regularh- undulate-dentate. Fi-om 

 the second it diti'ers still more by the Ijroader b;ise of the leaves, the median 

 nerve being narrower, though the leaf is larger, the secondaries somewhat 

 curved, and the borders dentate. It may, however, represent a variety of 

 this last species. 



Habitat: Ellsworth County, Kansas. No. 50 of the (•ollecti(m of the 

 nmseum of the University of Kansas. Collected by A. Wellington. 



