276 CZEKANOWSKIA. 



to the Beania typo, and it is not improbable that these examples- 

 indicate ancestral features, as Celakovsky ' has suggested. Without 

 wishing to overstrain such arguments as may be adduced in favour 

 of this view, we prefer to regard Beania gracilis as a female flower, 

 which was more probably borne by a plant belonging to the 

 Ginkgoaceas than by a member of the true Cycadacese. 



A type of flower similar to Beania has been described by 

 Xathorst as Zamiostrolus stenorachis, from the Rhtetic plant-beds- 

 of Scania. 2 



48,040. PI. IX. Fig. 11 ; and Carruthers, 1869, pi. iv. fig. 1. 



The main features of the type - specimen are well shown in 

 Carruthers' drawing, but the central axis and the wrinkled seeds 

 are rather more clearly reproduced in Fig. 11, PI. IX. 



Gristhorpe, near Scarborough. 



13,522 and 13,523. Single seeds with wrinkled testa. 

 Lower Shale, Cloughton. 



? GINKGOACE^E. 

 Genus CZEKANOWSKIA. 



[Heer, Flor. foss. Arct. vol. iv. (2), p. 65, 1877.] 



Heer places the genus CzeJcanowskia among the Conifcrae, and 

 defines it as follows : 



" Folia numerosa in ramulo abbreviate caduco fasciculato, 

 subulata, rigida, diehotoma, squamis compluribus persistentibus 

 circumdata. Flores feminei racemosi. Fructus pedunculo brevi 

 insidens, nucidis duabus valde appro ximatis." 



The long and narrow needle-like leaves, originally placed by 

 Lindley & Hutton 3 in the genus Solenites and compared by them 

 with the recent Isoetes, are considered by Heer to belong to 



1 Celakovsky (90). 



2 Xatliorst (75), pi. xiii. 



5 Lindley & Hutton (34), pi. exxi. 



