392 Mr Arher, A note on some fossil plants, etc. 



other fossils recorded from the Palaeozoic rocks. Psygmophyllum 

 as at present constituted is probably a composite genus. At a 

 future opportunity it is proposed, when describing these fossils 

 more fully, to review the present position of our knowledge of 

 the plants which have at one time or another been assigned to 

 it. The present preliminary note may serve to record the dis- 

 covery of these interesting fossils in a region which hitherto has 

 remained almost a terra incognita in a palaeobotanical sense. 



Text-fig. 2. Sphenophyllum, sp. 



A stem showing two nodes, to which fragments of leaves are attached. 



No. 339 Sedgwick Museum, Camb. x 1|. 



The only evidence of the age of the rocks from which these 

 specimens were obtained is that presented by the fossils them- 

 selves. From the occurrence of Sphenophyllum tenerrimum, 

 Stur, one would suppose that the period is either Lower Carboni- 

 ferous or Upper Devonian, the former being more probable. 



