Maryland Geological Survey 111 



Cycadites Rosmeri Schenk 



Dioonites Dunkerianus (Goeppert) 



Dioonites Gocppertianus (Dunker) 



Equisetum Burchardti Dunker 



Hausmannia dichotoma Dunker 



Jeanpaulia Brauniana Dunker 



Lomaiopteris Schimperi Schenk 



Marsilidium speciosum Schenk 



Matonidium Althausii (Dunker) Ward 



Microdictyon (Laccopteris) Dunkeri (Schenk) 



Onycliiopsis psilotoides (Stokes and Webb) Ward 



Pachyphyllum curvifolium (Dunker) Schenk 



Pachyphyllum crassifolium Schenk 



Pecopteris Murchisoni Dunker 



Protopteris Witteana Schenk 



Pterophyllum LyelUanum Dunker 



Ruffordia Goepperti (Dunker) Seward 



Sagenopteris Mantelli (Dunker) 



Sphenolepis Kurriana (Dunker) Schenk 



Bphenolepis Sternbergiana (Dunker) Schenk 



Spirangium Jugleri (Ettings) Schenk (probably not a plant) 



Sphenopteris delicatissima Schenk 



Sphenopteris adiantifrons Ettingshausen 



Sphenopteris Fittoni Seward 



Tempskya Schimperi Corda 



The ferns are largely in the majority in this list, numbering 18 species, 

 while the conifers furnish but 7 species and the cycads 6 species. 



From the neighboring area of Westphalia Hosius and von der Marck ^ 



have described the following species, which they designate as Neocomian : 



AMetites Linkii (Roemer) Dunker 



Dioonites abietinus Miquel 



Laccopteris Dunkeri Schenk 



Lonchopteris recentior Schenk 



Pinus Quenstedti Heer ? 



Piteairnia primceva Hosius and Von der Marck 



Podozamites cequalis Miquel 



Protopteris punctata Sternberg 



Pterophyllum 'blechniforme Hosius and Von der Marck 



Pterophyllum Germari B. v. Otto 



Pterophyllum saxonicum Reich ? 



Sagenopteris neocomiensis Hosius and Von der Marck 



^ Hosius and Von der Marck, Die Flora der westfalischen Kreideformation, 

 Palaeontographica, Band xxvi, 1880, pp. 80-95; Nachtrag, Band xxxi, 1885, 

 p. 231. 

 8 



