200 THE POTUMAO OR YOUNGER MESOZOIC FLORA. 



parallel to the tip, where they are somewhat crowded, the outer ones end- 

 ing in the margin below the apex. 



Locality : Fredericksburg. 



The specimens of this pretty plant are quite rare. The lower leaflets 

 are markedly smaller than those higher on the leafy twigs, but this is a 

 feature not uncommon in plants of this genus. 



Nageiopsis obtusifolia, sp. nov. 



Plate LXXXV, Fig. 7. 



Leaves short in proportion to width, very obtuse, attached b}- a short 

 slightly twisted pedicel, broadly elliptical or oblong in shape, broadest 

 near the base, slightly inequilateral at base ; nerves forking once or twice 

 near the base and then parallel to near the summit, where they are a little 

 crowded together, tlie outer ones ending in the margins a little belovy the 

 apex. 



Locality : Road-side near Potomac Run. 



This plant was evidently very rare. It shows the unusual feature of 

 having the margin of the base on the lower side more convex and broader 

 than on the upper side, which latter is cut away in a concave manner. 

 The nerves also tend to go off in bundles, branching more than once at 

 the base of the leaves. It is very rare. 



Nageiopsis in^quilateralis, sp. nov. 



Plate LXXXV, Fig. G.- 



Leaves snort and broad in proportion to length, slightly inequilateral 

 at base, obtuse, elliptical, broadest near base, abruptly narrowed on the 

 lower side at base, and more gradually rounded off on the upper side ; 

 leaf-substance very thick, epidermis dense and shining; nerves not dis- 

 tinctly seen, but parallel towards the upper part, and slightly crowded at 

 the summit of the leaflets. 



Locality : Kankey's. 



Only one specimen of this plant was found. The thick epidermis 

 obscures the nerves. 



