96 CLADOPHLEBIS. 
Russta. Asplenium Whitbiense, Schmalhausen, Mém. Ac. Imp. St. 
Pétersbourg, vol. xxvii. sér. vii. 1880, pl. xi. figs. 1-10. 
PrRsIA. Pecopteris Whitbiensis, Schenk, Bib. Bot. Uhlworm und Haen- 
lein, vol. vi. 1887. 
INDIA. Alethopteris Whitbhyensis, Feistmantel, Foss. Fl. Gond. vol. ii. 
1880, pl. ii. figs. 1-4, etc. 
CHINA. Asplenium Whitbyense, Schenk, Richthofen’s China, vol. iy. 
pl. xxxi. 
Asplenium argutulum, loc. cit. pl. xlvii. fig. 1. 
JAPAN. Asplenium Whitbiensis, Yokoyama, Journ. Coll. Sci. Japan, 
vol. iii. 1890, pl. iii. fig. 3; pl. x. fig. 1 and 2a. 
Asplenium argutulum, Geyler, Paleontographica, vol. xxiy. 
USTs ol, zeeck, tive, il, 
AMERICA. Cladophlebis faleata, C. virginiensis, C. acuta, Fontaine, Potomac 
Flora, pl. iv. fig. 8; pl. ii. figs. 3-8; pl. v. fig. 7, etc. 
AFRICA. Alethopteris, sp. Cf. Asp. Whitbyense (Hr.) and Asplenium. 
Cf. nebbense, Brong. (Heer), Feistmantel, Abh. k. béhm. Ges. 
Folg. vii. vol. iii. 1889, p. 68, pl. ii. fig. 12. 
Cladophlebis Albertsii (Dunk.). 
V. 2794. Pl. VIII. 
In this largest example of the species the main rachis has a 
length of 18 cm., and is broad and flat on the upper surface. The 
pinne are fairly perfect throughout the entire length of the frond. 
The falcate form of the pinnules is well marked; their margins 
appear to be entire for the most part, but some show indications 
of denticulation ; the outlines are not very well defined in such 
a matrix as we have in this specimen. JDetails of venation not 
shown. LEcclesbourne. Rufford Coll. 
V. 712. Part of a frond well preserved, with rachis about 
12 cm. long. The shape of the pinnules varies considerably from 
the broadly deltoid and falcate form of the more terminal pinne 
to the long, narrow, and less distinctly faleate pinnules of the 
larger and more basal pinne. ‘The latter come very near the 
fragment figured by Dunker; Schenk’s pinna agrees rather with 
one of medium size. 
Venation distinct and the axes of pinne prominent. Margins 
of the pinnules apparently entire, but in some cases there are 
traces of denticulation; here, again, the outlines are not very 
sharply defined. Ecclesbourne. Dawson Coll. 
