562 



CYCADOPHYTAN FRONDS 



[CH. 



certainly a Conifer as Nathorst has also suggested. No satis- 

 factory example of Cycadites has been described from Palaeozoic 

 strata ; Goeppert's Cycadites gyrosus 1 is founded on material too 

 imperfect to determine, and an examination of his Culm species 

 C. taxodinus in the Breslau Museum led me to refer it to a Conifer. 

 The specimens figured 2 by Zeiller from Lower Gondwana rocks 



FIG. 617. Pseudocycas insignis. From the Lias of Hor. A, nat. size; B, ca. x 2. 



(After Nathorst.) 



in India as Cycadites ? sp. are portions of linear leaves or leaflets 

 5 mm. broad with a median rib but they can hardly be accepted as 

 evidence of the presence of a Cycadean plant. 



Pseudocycas insignis Nathorst. 



The fronds of this Cenomanian species from the West of Green- 

 land reach a breadth of 16 cm. ; the rachis, 1 cm. broad, has two 



Goeppert (66). 



2 Zeiller (02) B. PL vii. fig. 4. 



