146 ARBER : FOSSIL FLORA OF SOUTH YORKSHIRE COALFIELD. 
Eremopteris of Schimper. The two halves of this nodule are 
seen on Plate XIV., Figs. 1 and 2. The frond was compound, 
with long, wedge-shaped, divided, alternate pinnules, each segment 
traversed by a single nerve, which forks below the next 
division of the leaf. This frond differs specifically from 
E. artemisicB folia, Sternb., the best known member of the genus 
in. Britain, in the size and shape of the pinnules. I have not 
been able to identify it with any other species of this little known, 
and somewhat rare genus, with which I am acquainted. 
The following is a diagnosis of the new species : — Frond 
compound. Rachis of ultimate pinnae grooved. Pinnules 
alternate, large, semi-erect, more than 4 cm. in length, un- 
symmetrically wedge-shaped, deeply divided or segmented, 
divisions long, cuneiform -linear, broadest at the apex. Nervation 
simple, dichotomous. A single nerve enters the base of the 
pinnule, where it quickly dichotomises, giving a nerve to each 
segment, which in turn forks a little below the next higher 
division of the segment. 
Neuropteris osmundoe (Artis.) 
Plate XV., Figs. 1 and 2. 
1824. Filicites osmundce, Artis, Antedil. Phytol., p. 7, Plate VII. 
1890. Neuropteris osmundoe, Kidston, Trans. Yorks. Nat. Union, 
Part XIV., pp. 42, 75, 91. 
1891. Neuropteris osmundoe, Kidston. Trans. Manchester Geol. 
Soc, Vol. XXI., p. 5. 
1894. Neuropteris osmundce, Kidston, Trans. Roy. Soc. Edinb., 
Vol. XXXVII., Part III., p. 591. 
The only figure of this rare plant, hitherto published, is that 
of the type specimen, from Elsecar Colliery, near Wentworth, 
Yorkshire, of which a very good drawing was given by Artis. 
This shows the nervation clearly, and emphasises the unequal size 
of the pinnae, and the serrated or notched nature of their margins. 
The plant is also now known from the Middle Coal Measures of 
South Wales, and South Lancashire, as well as from Nottingham, 
though it appears to be very uncommon in aU these districts. 
