488 PTERIDOSPERMS, ETC. [CH. 



and White \ T. Newherriana, is said to bear sori, but no 

 satisfactory information is given as to the nature of these 

 organs. Specimens referred with some hesitation to this 

 species and to a similar species, T. coriacea, have been described 

 by Sellards^ from material obtained from Permian beds in 

 Kansas. The lamina of the simple linear fronds is characterised 

 by the occurrence of small oval bodies half immersed in the 

 substance of the leaf between the secondary veins (figs. 330, D, E). 

 One of these bodies is represented in an apparently dehisced 

 condition in fig. 330, D. Sellards suggests the possibility that 

 these bodies are sporangia, but, as he points out, they afford no 

 indication of cellular structure nor are they in direct connexion 

 with the veins. 



Taeniopteris jejunata, Grand'Eury ^. 



This species differs from T. multinervis in its bipinnate fronds ; 

 the linear or oval-linear pinnae are attached by a short stalk to 

 the primary rachis and reach a length of 25 cm. ; the veins are 

 less crowded, 12 — 15 per centimetre. 



T. jejunata is recorded from the Coal-fields of the Loire and 

 Commentry* in France, from the Lower Permian of Thuringia®^ 

 and elsewhere. 



Taeniopteris Carnoti, Ren. and Zeiller®. Fig. 330, A. 



This species, founded on portions of pinnate fronds from the 

 Coal-field of Commentry, is characterised by rather broader 

 (25 — 30 mm.) pinnules, with short pedicels and a cordate base, 

 reaching a length of 25 — 30 cm. The secondary forked veins are 

 more numerous than in T. jejunata. In T. multinervis the 

 pinnules are still broader and have a stronger midrib. 



Several species of Taeniopteris have been described fi-om 

 Triasso-Rhaetic rocks in Europe, India, Tonkin and elsewhere. 



1 Fontaine and White (80) PI. xxxiv. figs. 1—8. ^ Sellards (01). 



' Grand'Eury (77) A. p. 171. * Eenault and Zeiller (88) A. 



5 Potom6 (93) A. p. 145, PI. xvn. fig. 3. 



« Renault and Zeiller (88) A. p. 282, PI. xxn. fig. 10. 



