No. 462.] FOSSIL GRASSES AND SEDGES. 347 
Hollick) do not show any recognizable remains of sedges. 
Dawson has described one doubtful form from the lower Cre- 
taceous (Urgonian) of British Columbia, and Heer has described 
two species founded on rather more definite remains of leaves 
from the Kome beds (Urgonian) of Greenland. This paucity 
of remains renders the discovery of the following species of 
some importance, as it was evidently abundant in the Atlantic 
coastal plain at a time when those transition beds between the 
typical Raritan and the typical Matawan were being laid down. 
Carex clarkii sp. nov. (Fig. 1.) 
Remains consist of fragments of leaves up to 6 cm. in length, 
and varying in width from r.5 to 4 mm., averaging between 2 




NT RUE ine bit from Grove Point, Maryland. 

Fic. 1. — Specime 
and 3 mm. in the specimens collected. Leaves slightly keeled, 
evidently becoming somewhat thicker and narrower toward the 
base. Midrib moderately prominent, lateral veins very fine and 
scarcely discernible, except in the larger specimens. 
