180 THE POTOMAC OK YOUNGER MESOZOIC FLORA. 



ably because more material was obtained thei-e than at most places. PI. 

 LXXXIIT, Fig. 1, gives the upper portion of an unusually large leaflet, in 

 which the nerves are obscure, but may be seen to converge at the summit. 

 Fig. 2 of the same plate shows two leaves of medium size in a position as 

 if coming off from a common stem. PI. LXXXIV, Fig. 10, gives three 

 leaflets detached, and from displacements overlapping one another. Figs. 

 14 and 15 of the same plate give the base and the tip of the leaf fragments 

 slightly enlarged, to show the nervation. The base given in Fig. 14 is 

 more abruptly rounded off than usual, but little narrowing toward the base 

 having taken place ; posslbl}' such leaflets, with tliose such as given in Fig. 

 8 of the same plate, may belong to a different species. 



This Fodozamites does not seem to be near any of the heretofore de- 

 scribed species. 



PODOZAMITES PEDICELLATUS, sp. nov. 

 Plate LXXVI, Fig. 1 ; Plate LXXVIII, Fig. 7; Plate LXXXII, Fig. .5. 



Leaves not seen ; leaflets large and long, length not fully disclosed 

 maximum width varying from 26""' to 35™"" ; shape probaldy oblong to elon- 

 gate-elliptical, gradually narrowed to the base, and elliptically shaped there, 

 furnislied with a long, broad pedicel, curved to one side, deciduous; nerves, 

 forking near the base, then nearly parallel, tips of leaflets not seen. 



Locality : Fredericksburg ; rare. 



This possibly may be a Narjciopsis, as the nerves at the tips of the 

 leaflets were not seen, but tlie deciduous nature of the leaflets indicates 

 that they belong to Podozamites. 



PODOZAMITES GRANDIFOLIUS, Sp. UOV. 

 Plate LXXXII, Fig. 2; Plate LXXXIII, Fig. ."S. 



Leaflets very large, 4.5"'" wide and over 20"" long; shape not seen, 

 probably elongate-elliptical, with stout pedicel at base ; nerves where seen 

 strong, parallel, remote, composed of two nerve-strands which are closely 

 placed, and form a flat nerve-bundle. 



Localities : Fredericksburg ; road-side near Potomac Run ; rare. 



This plant is quite rare, and, owing to their great size, the leaflets were 

 found only in a fragmentary condition; hence their shape could not be made 



