[MaTTHEw] FLORA OF THE LITTLE RIVER GROUP NO. III 11 
? P.—princeps, Dn., inserted on the authority of the author of the 
species, but there is nothing to represent it in the collection of types. 
? Lepidodendron Gaspianum, Dn.; the remarks in reference to the 
preceding species apply to this. 
Rhizomes and roots which may belong to the above group, are here 
added, viz: d | 
Pinnularia dispalans, Dn. Probably the stolens or roots of 
Annulariæ. 
P.—elongata, Dn. 
P.—nodosa, Dn. The author of this name suggests that this may 
be the root or rhizome of Asterophyllites [Lepidocalamus] scutigera.! 
FILICIN Æ. 
Of the many genera which Sir William Dawson’s list places among 
the Ferns, there is only one, Pecopteris, which modern discoveries of 
the fruiting organs of several of these “ fern’? genera, with certainty, 
leaves there. Among the Pecopterids there is at least one species 
possessing the usual sori (or an appearance of such) which we are 
accustomed to associate with the reproductive organs of the Filicide. 
These organs are in rows on the backs of the pinnules, and the plant 
has the pectinate arrangement of the pinnules on a stout rachis which 
we are accustomed to associate with the typical species of this genus. 
: PECOPTERIDÆ. 
Pecopteris serrulata, Hartt, (allied to P. plumosa Brongt. and 
P. Silesaica, Gôpp. fide Dawson.) 
? P.—obscura, Lesq. (The occurrence of this species is doubtful). 
P.—(Aspidites) pretiosa, Hartt. 
P.—(Cyathites) densifolia, Dn. 
PTERIDOSPERMA. 
In cases where we think it has been shown that seed-bearing species 
of fern-like plants have been found in this flora, the generic name has 
been changed for the species in question from that given by Sir William 
Dawson; but, otherwise his name has been preserved even where the 
port of the plant indicated a generic relationship to one of the Car- 
boniferous Age that has been shown to be seed-bearing. 

1 Except a iew species the remainder oi tnis tiora has not yet been revised, the 
list therefore is only tentative. 
