DESCKUTIOX OF TLIK Sl'EClHS. 179 



leaves of Nageiopsis, a genus of conifers described in this work, \n\\ tlicv 

 differ from tliis in the very deciduous nature of tlie leaflets, and aljove all 

 in the eonveru-enco of the nerves at their sunnnit. 



I'ODOZAMITES STHKALCATUS, S]). nov. 

 Plate 1. XVIII, Fig. O; Piatr CLXX, Ti-. '.i. 



Leaves uidcnovvn; leaflets subfalcate, narrowl v elliptical to strap-shaped, 

 obtuse or subacute, g-raduallv nan-DWcd ti> the base so as to form a l>road, 

 short pedicel, thick and leathery; nerves slender, ami not well disclosed, 

 forking near the base, then nearlv parallel to near the tips, where they con- 

 verge. 



Locality: 72d mile-post near Hrooke ; x'are. 



Only detached fragments of leafliits were found. The leaflets must 

 have varied a good deal in size, as PI. LXVIII, Fig. (!, represents a nearly 

 complete leaf, which is much smaller than that of which PI. C"LX?\, Fig. II, 

 repre.sents a fragment. The shorter form, PI. LXVITI, Fig. (!, is a good 

 deal like Zainitcs ovatHs,:\\v{ Z. rt^7W.9 Schenk,' forms which Schimper makes 

 Podozuinitrs. The longer leaflet on the other hand is somewhat like Z. 

 nvrvosus Sclienk, same plate. Fig. 10. 



PODOZAMITES DISTANTINERVIS, Sp. UOV. 



riatf LXXIX. Fig. .-.: Plate LXXXH. Fijj. 4: Pl.ite LXXXIII. Figs. 1, 2, (i, 7; Plate LXXXIV. Figs. 

 1, 2, 8, 10, 14, 15: Plate hXXXV, Figs. 12, Hi. 



Leaves comparatively large, pinnate: leaflets large, elongate-ellii)tical 

 in form, \arving a good deal in size, maximum width varying from -jy""" to 

 4(t""", usually comparatively broad, full length not .seen, ])ut ranging from 

 11""" to over 14"", obtuse or subacute at tip, usually sonu'what narrowed 

 toward the base, and at the base rather abruptly rounded off into a short 

 pedicel : nerves strong, quite remote, forking at or near the base, and then 

 jiarallel to near the ti]), where they converge and connive more or less. 



Localities: Road-side near Potomac Run; Fredericksburg: near Tele- 

 graph Station ; rare. 



This is the most connnon f'odozamitcs, but still it is not abundant. 

 More specimens were found at Fredericksburg than anywlu'ie else, prob- 



' Schcuk, Koss. Ptlaii/. iler Weiisil.iiL .soliielit.ii, 1-71, I'l. 111. Fig,. 7, 6. 



