95 



STICHERUS: see Fig. 114 B, p. 63. 

 STROMATOPTERIS: see Fig. 114 A, p. 63. 

 TAENITIS:— 



H^iViAj, 





^i--^.-^ 









Fig. 184. Taenitis blechnoides. From 

 left to right: sclerine stratification 

 ( X 2000) and lateral view ( x 250); 

 distal face (x 1000); LO-patlerns. 



TAPEINIDIUM: 



;-'~q 7 



mm 



T * . f 



Fig. 185. Tapeinidium piniiatiim; 



proximal face ( x 250); lateral view 



(surface and optical cross-section; 



X 1000); LO-patterns. 



THYRSOPTERIS:— 



Fig 



186. Thyrsupteris elegans; proximal face (surface and optical cross- 

 section; X 1000). Optical cross-sections through the laesura at a-d are shown 

 in a^-di. e, LO-patterns. Lower left-hand detail: lateral view ( x 250); upper 

 right-hand detail: sclerine stratification ( x 2000). 



