280 CZEKAXOWSKIA. 



1856. Isoetites Murrayana, Zigno, Flor. foss. Oolit. vol. i. p. 216. 



1864. Solenites Murmyana, Leckenby, Quart. Journ. Geol. Soc. vol. xx. 



p. 76. 

 1870. Isoetites Murmyana, Schimper, Trait, pal. veg. vol. ii. p. 75. 

 1875. Solenites Murrayanus, Phillips, Geol. Yorks. p. 198, pi. x. fig. 12. 

 1877. Czekanowskia riyida, Heer, Flor. foss. Arct. pis. v. and vi. (pars). 



C. setacea, ibid. 

 1885. ? Pinus suskwaensis, Dawson, Trans. Roy. Soc. Canada, pi. ii. fig. 6. 

 1892. Solenites Murrayana, Fox-Strangways, Tab. Foss. p. 138. 



1895. Cf. Czekanowskia capillaris, Newberry, U.S. Monograph, xxvi. p. 61, 



pi. ix. figs. 14-16. 



1896. Czekanowskia riyida, Hartz, Med. om Gronland, pis. xvii., xviii. 

 ? C. setacea, ibid. pi. xvii. 



1900. Cf. Czekanowskia, sp., Nathorst, Norwegian Polar Exped. pi. i. 



The name Flabellaria ? viminea, applied by Phillips to an 

 imperfect specimen of Czekanowskia Murrayana, never came into 

 general use, and, in spite of the few years' priority of Phillips' 

 term, it is better to adopt the better known name of Lindley & 

 Hutton, by whom the plant was first described. A specimen in 

 the Whitby Museum (No. 2493) labelled Flabellaria viminea is 

 possibly the type of Phillips. 



The type-specimen of Lindley & Hutton, obtained from Gristhorpe 

 Bay, was compared by these authors with Isoetes and Pilularia, 

 also with grasses and other monocotyledons. The bladder-like 

 swellings shown in their figure are no doubt due to the partial 

 peeling off and separation of the carbonaceous film from the 

 surface of the shale ; no definite swellings like those represented 

 in the fossil flora can be detected in the specimen. Their drawing 

 of the epidermal cells does not afford any indication of the 

 occurrence of stomata, but in all the leaves of which I have 

 examined fragments under the microscope stomata are abundant 

 (Fig. 48). 



In the third edition of the Geology of the Yorkshire Coast, 

 Solenites Murrayana is compared with the more slender examples 

 of Baiera gracilis. 



A comparison of several specimens of Heer's two Siberian 

 species, Czekanowskia rigida and C. setacea, in the Museum 

 Collection, leads me to regard some of the examples of both these 

 ' species ' as identical with the type-specimen of Lindley & Hutton 

 (Fig. 49) ; others differ from the type in their greater frequency 

 of the dichotomous branching of the individual leaves, and agree 

 more closely with the specimens named by Lindley & Hutton 



