The Coal of Australia. 
435 
pinnatifid; lobes very oblique, elliptical, generally three on 
each side, and the apex of the pinnules three-lobed; nerves 
bipinnate, three branches reaching the margin of each lobe. 
It is extremely difficult to distinguish this species from the 
Pecopteris Murrayana of the Yorkshire oolitic coal-fields, with 
which it is nearly identical in form and neuration. The oval 
outline of the pinnules is the most obvious character, contrasting 
with the trigonal, wide-based leaflets of the English plant; this, 
together with their more oblique setting on the rachis, more 
oblique, narrow and deeply-cleft lobes, and the decurrent, narrow, 
alate margin to the straight rachis, will I think be sufficient to 
distinguish the species. 
In the shale of Mulubimba, N. S. Wales. 
Splienopteris pluinosa (M’Cov). 
Sp. Char. Bipinnate; pinnae curved, elongate, narrow, plumose, 
with a scarcely alate margin to the rachis; pinnules close, 
oblique, ovate, pointed, deeply cleft into about four oblique 
mucronate lobes on each side, exclusive of the largely trilobed 
apex ; nerves strong, much-branched, so that about six branches 
reach the margin of each of the lobes of the lower side, and 
seven to each of those of the upper margin. 
The number of lobes of the leaflets and complexity of the 
neuration will readily distinguish this species. The average length 
of the leaflets 5 lines. 
Rare in the shale of Mulubimba, N. S. Wales. 
Splienopteris flexuosa (M’Coy). 
Sp. Char. Bipinnate ; pinnse very long, with a strongly flexuous 
naked rachis; pinnules large, moderately oblique, unequal, 
ovate, sides cut into two very large obtusely rounded lobes on 
each side, apex trilobed; nerves strong, much-branched, seven 
branches reaching the margin of each lateral lobe, and three 
going into each of the three lobes of the apex. 
This strongly-marked species is not sufficiently allied to any 
published form to render a comparison necessary. The average 
length of the leaflets is about 8 lines, width 4 lines. 
In a brown bed of clay, Mulubimba, N. S. Wales. 
