90 DIGTrOPHYLLtTM:. 



Dictyophyllum, sp. 



Localities and Sbrizons. — Collyweston (Inferior Oolite) ; Stones- 

 field ? (Great Oolite). 



Fid. 8. — Dictyophyllum, sp. A, fragment of sterile lamina ; B, fragment of 

 fertile lamina. V. 9003. Nat. size. 



V. 9003. Text-fig. 8. 



An imperfect fragment of a leal with a bluntly crenulate 

 margin showing the yenation-characters of Dictyophyllum and 

 Protorlii/pis. The fragment B, Fig. 8, afEords slight indications 

 of sori. The larger piece (A) hears a close resemhlance to 

 leaves of the genus ProtorMpis, as for example the type-specimen 

 of Andrae's P. Buchii,^ but the material is too imperfect to- 

 identify with certainty. A species from the Lower Jurassic 

 rocks of Cracow,^ described by Eaciborski as Dictyophyllum 

 craeoviense, beeurs a close resemblance to the fragment represented 

 in Text-fig. 8. A comparison may be made also with' the small 

 frond of Dipteris conjugata figured in pi. xlviii. fig. 23, of the 

 paper' on recent and fossil Dipteridinas already referred to. 



CoUyweston Slate. C. W. Peach Coll. 



V. 4672. Fragment of the same type of leaf as that shown in. 

 Text-fig. 8. 



CoUyweston. C. W. Peach Coll. 



A fragment of Dictyophyllum in the Oxford Museum (Stones- 

 field ?) may be specifically identical with the CoUyweston plant. 



' Andrae (53), pi. viU. fig. 1. 



' Eaciborski (94), pi. xiv. figs. 6-10. 



3 Seward & Dale (01). 



