118 The Lower Cretaceous Floras oe the World 



Sphenopteris (?) DeGeeri Nathorst^ 



Sphenopteris sp., A, B 



Schizolepis cylindrica Nathorst 



Schizolepis (?) retro flexa Nathorst 



Stenorrhachis (?) clavata Nathorst 



Tieniopteris Lundgreni Nathorst (cf. Beyrichii Schenk) 



Thinnfeldia arctica Heer 



Xenoxylon phyllocladoides Gothan 



Heer's supposed monocotyledon Hypoglossidium antiquum is consid- 

 ered by ISTathorst as the impression of some coniferous scale, Baiera 

 cretosa is considered a fern petiole, and Baiera dichotoma an undeter- 

 minable plant fragment: Sphenopteris sp. A is considered as close to the 

 widespread Onychiopsis psilotoides, while CladopMehis sp. A suggests the 

 widespread CladopMehis Alhertsii, and Cladoplilehis sp. B the equally 

 widespread Cladopfilebis Browniana. The two species of Baiera recog- 

 nized are close to the Potomac species Baiera foliosa, and upon the whole 

 the present writer is disposed to consider the flora as exhibiting a Lower 

 Cretaceous rather than an Upper Jurassic facies, whatever may be its 

 exact stratigraphic position. In this connection mention should be made 

 of the fossil wood described by Gothan ^ from this and the nearby island 

 of King Charles Land. His identifications include 



Anomaloxylon magnoradiatum Gothan 

 Cedroxylon transiens Gothan 

 Cedroxylon cedroides Gothan 

 Cedroxylon phyllocladoides Gothan 

 Cupressinoxylon cf. McGeei Knowlton 

 Phyllocladoxylon sp., Gothan 

 Piceoxylon antiquis Gothan 

 Protocedroxylon araucarioides Gothan 

 Protopiceoxylon extinctum Gothan 

 Thylloxylon irregulare Gothan 

 Xenoxylon latiporosum (Cramer) Gothan 



Kootanie 



A history of the study of the fossil plants of the Kootanie formation 

 down to 1905 is given in Professor Ward's monograph (loc. cit.). The 



^ Gothan, Die Fossilen Holzer von Konig Karls Land, Kgl. Svenska Vetens.- 

 Akad. Handl., Band xlii, No. 10, 1907. 



