FOSSIL PLANTS OF BRITAIN. 183 



ACROSTICHITES, Gopp. 



Fronds simple or pinnate ; veins oblique, dichotomously forked, digitate, 

 or anastomosing. 



* Frond bipinnate. 



Acros. Williamsonis, Gopp. page 285. Pecopteris William- 

 sonis, Brong. Prod, page 53; Hist. i. page 324, tab. 110, 

 fig. 1, 2 ; Lindl. and Hutt. i. page 125, tab. 126. Oolite 

 shale, Scarborough. 



** Frond digitate. 

 Phillipsii, Gopp. page 286. Glossopteris Phillipsii, 



Lindl. and Hutt. i. page 167, tab. 63; Stemb. part v. and 

 vi. page 69. Sagenopteris, Presl. Pecopteris pauci/olia, 

 Phillips, tab. 8, fig. 8, h. Oolite shale, Gristhorpe Bay. 

 in(Bquilaterus, Stemb. ; Gopp. page 287. Keuper, 



SchruUendorf, Franconia ; Sinsheim, Baden. 



WOODWARDITES, Gopp. 



Fronds pinnatifid ; veins areolately reticulated, dichotomous towards the 

 margin; the areoles irregular, smaller near the midrib. 



JVoodw. ohtusilohus, Gopp. page 289, tab. 21, fi^. 1. Sagen- 

 opteris, Presl. Coal measures, Waldenburg. 



acutilohus, Gopp. page 289, tab. 21, fig. 2. Lonchop- 



teris Goppertiana, Presl. Coal measures, Waldenburg. 



Brownii,^oh.^ iy<?m^7e/^Ye5, Gopp. page 334, tab. 38, 



fig. 1. Phlehopteris contigua, Lind. and Hutt. ii. tab. 144, 

 page 177. Oolite shale, Gristhoi-pe Bay. 



Clathropteris, Brong. 



Fronds pinnate. Midrib thick and excurrent ; veins simple, straight, 

 parallel, united by transverse venules, forming quadrangular areas : (as in 

 Meniscium, Drynaria, and some species of Acrostichum. Goniophlebium of 

 Smith. 



Clath. meniscioides, Gopp. page 290, tab. 15, fig. 7. Filici- 

 tes meniscioides, Brong. Ann. des Sci. Nat. ] 825, vol. iv. 

 page 218 ; Bronn, Leth. Geogn. ii. tab. 13, fig. 2, page 149. 

 Zm.v, Hor; Neue- welt near Basle. 



* J udging from the anastomosed veins at the base parallel to the midrib, 

 this species may be regarded as belonging to Woodwardites rather than to 

 Hemitelites, to which Goppert has referred it. 



( To be continued). 



