New Species of Fossil Plants. 417 
ing or diverging lobes ; nerves very thin, flabellate or dicho- 
tomous from the base, very close and slender near the margin ; 
surface more or less covered with short straight hairs. 
Genus NEUROPTERIS. 
19. Nevropreris speciosa (spec. nov.) Leaves oval, 
lanceolate, cordate at the base, 3 to 6 inches long, 14 to 2 
inches broad ; margins entire, nervules flabelliform, and dicho- 
tomous froní a scarcely inflated medial nerve; distant, very 
slender and distinct; very arched downwards, and then 
turned upwards on the margins. 
20. Nevropreris utrsuta Lesqx. Neuropteris cordata 
Brongt. — Neuropteris angustifolia Brongt. —Neuropteris 
Scheuchzeri Hoff. Neuropteris acutifolia Brongt? Frond 
pinnate or bipinnate ; pinnules trifoliate except near the 
summit of the pinnæ, where they become simple; leaves 
cordate at the base, lanceolate, acute, or obtuse ; sometimes 
irregularly lobed, strongly nerved, till above the middle; 
nervules dichotomous, very arched and close ; leaflets of the 
kidney shaped, round, oval, much smaller, with the 
nerves flabelliform from the base, without any medial nerve ; 
Surface of the leaves more or less covered with short straight 
airs, 
21. Nevroprenis CLARKSONI (spec. nov.). Stems irregu- 
larly bipinnately branching; pinnules simple, broadly lanceo- 
te above ; cordate or irregularly auriculate, and hastate at 
the base by the inferior lobe being more or less elongated ; 
terminal pinnule lance shaped, equally bilobed in the middle ; 
nervules dichotomous, distinct, strongly marked from a thick 
medial nerve, which áscends nearly to the summit. ; 
22. NEUROPTERIS rissa (spec. nov.) Frond? Pinnule 
Oval, truncate at the base or cordate; margin undulate ; 
Rervules dichotomous from a medial nerve ; very distant.and 
r, scarcely marked. ps 
EUROPTERIS DELICATULA (spec.nov.). Frond bipin- 
JOURNAL B. s. N. H. 54 AUGUST, 1854. 
