BY THE REV. J. E. TENISON-WOODS, F.G.S., F.L.S. 109 



so-called Pecopteris desnoyersii, Br., of the Oolithe a Fougeres, 

 Mamers, Sarthe. Common in the fine sandstone of Clarke's Hill, 

 N.S.W." 



Cyclopteris. Brongniart. 



Frond simple, pedicellate, flabelliform or reniforni, symmetrical, 

 membranaceous, margin sub-entire, crenulate, or fringed ; veins 

 arising from the base, forking frequently, radiating, slender, all 

 reaching the margin. 



This genus connects the Sphenopterideaa and Neuroptericleae. No 

 pinnate form is included in it. It is related to species of Hymeno- 

 phyllum with a simple frond such as \£T. reniforme, which grows in 

 N. Zealand. 



Cyclopteris cuneata. Carruthers (Quart. Jour. Geol. for 1872. 

 Append, to Daintree's Essay, p. 355, pi. 29, fig. 5.) — Form of the 

 entire frond unknown, pinnae entire, large cuneate, narrowed at the 

 base, with the distal margins rounded, veins delicate, once or twice 

 dichotomously divided, sometimes anastomosing once in their length 

 in the middle of the pinnae. 



" Notwithstanding the slight anastomosis of the veins, these 

 separate pinnae, which are not very frequent, represent a very 

 distinct species of the genus Cyclopteris. Locality, Tivoli Coal 

 Mine." 



Dr. O. Feistmantel thinks this is not a complete frond or leaflet, 

 but a wedge-shaped fragment broken off by chance. This is 

 certainly my opinion after having examined the type specimen 

 which is preserved in the Brisbane Museum. The fragmentary 

 character and the anastomosis of the veins inclines me to agree 

 with Dr. Feistmantel in not regarding this as a Cyclopteris. 

 Possibly it may belong to some fern of the net-veined order 

 (Dictyopteridese). See further remarks on some fossils of this kind 

 from the Ipswich coal beds. Some fragments of Sageno%)teris may 

 resemble it. 



PECOPTERIDEiE. 



Frond undivided, simple, or pinnate many times in a beautiful 

 manner. Pinnules often entire, but here and there sub-divided 

 and with a dentate margin, base wholly adnate, rarely constricted, 



