Jilafic/icstcr MoNoirs, \'ol. xiiv. (1900), No. S. 15 



The specimen on which Lindley&Hutton instituted their 

 species was found by Wilh'amson in the Gristhorpe plant- 

 bed, and sent by him with a drawini; and descriptive notes 

 to tlie authors of the " Fossil Flora " ; it has a length of 

 I I cm. and is 5-5 broad at the widest end. The lateral 

 veins, which arc very clear!}' shown, are almost at right 

 angles to the midrib, and dichotomise as they pass to the 

 edge of the lamina. Williamson's drawing is fairly 

 accurate, but the specimen is less perfect than the figure 

 representing it. On the same piece of rock there is a 

 specimen o{ Pagiophylliiin Willimnsojii (Brongn.) and a 

 piece oi Nilssonia coiupta (Phill.). 



The distinction between TcEuioptetis vittata and 

 T. major is not very well defined, but it is perhaps better 

 to confine the specific designation vittata to the longer 

 and narrower fronds, and to distinguish the broader form 

 as T. major. 



Nathorst has suggested that Tcvnioptcris major may 

 represent an entire leaf of Anomozamites Nilssoni {VhixW.), 

 a species characterised by the possession of a lamina 

 divided into segments of unequal size, but this is, I think, 

 improbable ; the latter species seems to be distinct and 

 characterised both by the divided lamina and by the 

 venation. 



B. Gymnosperm/E. 



Podozamites lanceolatus (Lindley and Hutton). 

 Type-specimen of pi. cxciv., Lindley and Hutton. 

 (No. 321.) 

 1836. Z amites lanceolatus, 'Lmdley and Wuiton, Foss. Flora, 

 pi. cxciv. 



1870. Podozamitcs lanceolatus, Schimper, Traitc Pal. Veg., 



p. 160. 

 1896. Podozamiies Schenkz, Hartz, Med. Grotil, vol. xix., 



pi. xiii., figs. 2 and 7. 



