Vol. 69.] 



THE CLEVELAND DISTRICT OF YORKSHIRE. 



225 



In the ' Proceedings of the Cleveland Naturalists' Field-Club ' l 

 for 1910 the same list is given, with the addition of the following 

 species : — 



Coniopteris hymcnoplnjlloides. 

 Flower of Williamsonia pecten. 

 Flower of Williamsonia gigas. 



Nilssonia schaumburgensis (Dunk.) 

 [N. oriental is]. 



On p. 264 of the same publication the following are recorded :- 



Zamites sp. 

 Taxites zamioides. 



.Nilssonia tenuicatus 2 [N. oriental is]. 

 Nilssonia schaumburgensis [N. orien- 



talis]. 

 Tod-it es williamsoni. 



Zamites buchianus [Pseudoetcnis 



lanci]. 

 Ptcrophyllum sp. 

 Cladophlebis lobifolia* 

 Coniopteris hymenophylloides. 



A somewhat similar list is tabulated, on pp. 15 & 1G of the 

 " Naturalist ' for that year, by Mr. Lane aud Mr. Saunders. 



With the exception of Dictyozamites, none of the species seem to 

 have been described, though in parts of the Cleveland ' Proceedings ' 

 referred to above, figures have been given of Ginkgo digitata, and 

 plants thought to be Zamites buchianus, Nilssonia schaumburgensis, 

 and Cladophlebis haiburnensis. In the present paper the chief 

 points of interest in the various species are noticed, and those 

 which prove to be new are dealt with in detail. 



III. List of the Species described in this taper. 



Equisetales. 



Equisetites columnaris Brongn. 



HyDROPTERIDE.E (?) 



Sagenopteris phillipsi, var. -major 

 Seward. 



Filices. 



Laccopteris polypodioid.es Br. 



Dictyophyllum rugosum L. & H. 



Htachypteris hallei Thomas. 



Coniopteris hymenophylloides Br. 



Coniopteris quinqueloba (Phillips). 



Todites ■williamsoni (Br.). 



Cladophlebis denticulata Br. 



Marattiopsis anglica, sp. nov. 

 Bennettitales. 



Williamsonia, spectabilis Nathorst. 



Williamsonia whitbiensis Nathorst. 



Williamsonia sp., female strobilus. 



Zamites (Williamsonia) gigas L. 

 & BT. 



Ptilophyllum (Williamsonia) pecten 

 (Phillips). 



Taniopteris vittata Br. 



Tceniopteris major L. & H. 



Tcenioptcris sp. 



Wielandiella ( Anomozamites) nils- 



soni (Phillips). 

 Otozamites feist manteli Zigno. 

 Otozamites graphicus (Leckenby, ex 



Bean MS.). 

 Dictyozamites hawelli Seward. 

 Cycadean stem, cf. Wielandiella sp. 



Cycadales (?) 



Nilssonia mediana (Leckenby ex 



Bean MS.). 

 Nilssonia oriehtalis Heer. 

 Pseudoctenis lanei, sp. nov. 



GlNKGOALES. 



Ginkgo digitata (Br.). 

 Baiera longifolia (Pomel). 

 Czekanowskia murrayana (L. &"H.). 



CONIFERALES. 



Elatides sp. cf. E. setosa (Phill.). 

 Taxites zamioides (Leckenby ex 

 Bean MS.). 



Vol. ii (1910) pt. 4, p. 206. 

 Probably a misprint for tcnuinervis. 



