Palaeontologie. 537 



The author while ostensibly describing the Maryland flora has 

 included sorae of the more important forms from the State of Vir- 

 ginia, a natural part of the same area. All, however, of the Lower 

 Cretaceous plants from Virginia are not included but are reserved 

 for a subsequent publication. 



The present work includes a very füll discussion and Illustration 

 of the following species: 



F i 1 i c a 1 e s : Schisaeopsis americana ßerry, Ruffordia acrodentata 

 (Fout.) Berry, R. Goepperti (Dunker) Seward, Acrostichopteris cyclo- 

 pteroides Fout, A. adiantifolia (Fout.) Berry, A. parvifolia Fout, A. 

 pluripartita (Fout.) Berry, A. longipennis Fout, A. expansa (Fout.) 

 Berry, Knowltonella Maxoni gen. et sp. nov., Dicksoniopsis vernonen- 

 sis (Ward) Berry gen. nov., Cladophlebis Browniana (Dunker) Seward, 

 C. constricta Fout, C. rotundata Fout, C. virginiensis Fout, C. parva 

 Fout, C. Albertsii (Dunker) Brongn., C. Ungeri (Dunker) Ward, C. 

 distans Fout, Dryopterites macrocarpa (Fout.) ßerry gen. nov., D. 

 pinnatifida (Fout.) Berry, D. cystopteroides (Fout.) Berry, D. elliptica 

 (Fout.) Berry, D. dentata (Fout.) Berry, D. virginica (Fout.) Berry, 

 Aspleniopteris pinnatifida Fout, A. adiantifolia Fout, Onychiopsis 

 latiloba (Fout.) Berr} r , O. psilotoides (Stokes Webb) Ward, O. brevi- 

 folia (Fout.) Berry, O. Goepperti (Schenk) Berry, 0. nervosa (Fout.) 

 Berry, Sagenopteris latifolia Fout, 5. elliptica Fout, S. virginiensis 

 Fout, Tempskya Whitei sp. nov., Taeniopteris auriculata (Fout.) 

 Berry, T. nervosa (Fout.) Berry, Scleropteris elliptica Fout, Thinnfeldia 

 Fontainei Berry, T. granulata Fout, T. rotundiloba Fout, T. mary- 

 landica Fout. 



Lycopodiales: Selaginella marylandica Fout. 



Equisetales: Eqnisetum Lyelli Mantell, E. Burchardti (Dunker) 

 Brongn. 



Cycadophytae: Cycadeoidea marylandica Ward, C. Tysoniana 

 Ward, C. McGeeanaWard,C. Fontaineayia Ward, C. Goucheriana Ward, 

 C. Uhleri Ward, C. Bibbinsi Ward, C. Clarkiana Ward, C. Fisherae 

 Ward, Dioonites Buchianus (Ettings.) Born., Cteuopteris insignis Fout, 

 C. angustifolia Fout, C. longifolia Fout, Ctenopsis latifolia (Fout.) 

 Berry, gen. nov., Zamiopsis dentata (Fout.) Berry, Z. petiolata Fout, 

 Z. laciniata Fout, Nilsonia oregonensis (Fout) Berry, N. densinerve 

 (Fout) Berry, Zamites tenuinervis Fout, Z. crassinervis Fout, Dicho- 

 tosamites cycadopsis (Fout.) Berry, gen. nov., Cycadeospermum inary- 

 landicum sp. nov., C. obovatnm Fout, C. acutum Fout, C. rotundatum 

 Fout, C. spatulatum Fout, Podosamites subfalcatus Fout, P. acutifolius 

 Fout, P. inaequilateralis (Fout.) Berry, P. distantinervis Fout, P. 

 Knowltoni Berry, P. lanceolatus (L. & H.) F. Braun. 



Ginkgoales: Baier a foliosa Fout. 



Coniferales: Nageiopsis longifolia Fout, N. angustifolia Fout, 

 N. samioides Fout, Cephalotaxopsis maguifolia Fout, C. brevifolia 

 Fout, Brachyphyllum crassicaule Fout, B. parceramosum Fout, 

 Araucarites aquiensis Fout, A. patapscoensis sp. nov., Abietites ma- 

 crocarpus Fout, A. longifolius (Fout.) Berry, A.foliosus (Fout.) Berry, 

 A. marylandicus Fout, Pinus vernonensis Ward, Cupressinoxylon 

 Wardi Knowlton, C. McGeei Knowlton, Frenelopsis ramosissima Fout, 

 F. parceramosa Fout, Sphenolepis Kurriana (Dunker) Schenk, 5. 

 Sternbergiana (Dunker) Schenk, Laricopsis angustifolia Fout, Arthro- 

 taxopsis expansa Fout, A. grandis Fout, Widdringtonites ramosus 

 (Fout.) Berry, Cedrus Leei (Fout.) Berry, Sequoia Reichenbachi (Geno.) 

 Heer, S. rigida Heer, 5. delicatula Fout, 5. ambigua Heer. 



Angiospermae: Cyperacites potomacensis sp. nov., Plantagi- 



