194 THE FLORA OF THE DAKOTA GROUP. 



There are two specimens of this remarkable species; the best preserved 

 is smaller, neai-ly round, 3"™ in diameter, the midrib passing under the l)asal 

 border, scarcely 2°"" above the truncate base. The secondaries are of seven 

 pairs, the lowest, which are at right angles to the midrib, are thick and 

 rigid, forming with the transverse, thick, parallel nervilles a very rough sur ■ 

 face. These may be young, not fully developed leaves of P. riifjosmn Lesq. 



Habitat: Ellsworth County, Kansas. No. 1171 of the collection of 

 Mr. R. D. Lacoe. 



Peotophyllum ckednekioides Lesq. 

 PI. XXXVI, Fig. 11; PI. XLllI, Figs. 4,5. 



Haydeu's Ann. Rept., 1874, p. 363, PI. in, Fig. 1 ; PI. Vlli, Fig. 4 ; Lesquereux, Cret. 

 and Tert. Fl., p. 90, PI. ii. Figs. 1-3. 



As may oe seen in comparing the leaves refen-ed to this species, they 

 are very variable in size and also in the characters of nervation, Ijeing nearly 

 entire or imdulate on the borders, round or obtuse at the apex, witli distant 

 primary nerves and a thin basilar nerve underneath or with all the lateral 

 nerves alternate, parallel, simple, or branching, distributed like secondaries. 

 From this it may be reasonable to conclude that some of the numerous 

 forms described above as species may ultimately be recognized as mere 

 varieties when it is possible to compare a larger number of specimens. 



Habitat: Ellsworth County, Kansas. No. 866 of the museum of the 

 University of Kansas; E. P. West, collector, 



Peotophyllum pseudospeemoides, sp. nov. 

 PI. LIX, Fig. 2. 



Leaves small, coriaceous, ovate, obtuse, truncate at base, sharply 

 dentate on the borders; primary nerve narrow, prolonged to a short petiole; 

 middle pair of secondaries at a distance from the borders, oblicpie, with 

 lower pairs of secondaries nearly at right angles to the midrib, arched down- 

 ward, simple, and five upper pairs, oblique and parallel to the middle; all 

 more or less branching, craspedodrome ; teeth short but acute, w'tli shallow 

 sinuses. 



Habitat: Kansas 



