78 Annals of tlie Soutli African Museum. 



small and fragmentary impressions of Glossoi)teris fronds, with one 

 or two imperfect specimens of Gangaviopteris, preserved in a mottled 

 purple and greyish-green argillaceous rock, from Worcester, also some 

 indistinct portions of an Equisetaceous plant. In addition to these, 

 the rock from Tuin Kraal Eiver contains fragments of Equisetaceous 

 stems, probably referable to the genus Schizoneura. 



II.— DESCRIPTION OF SPECIMENS. 



Genus GLOSSOPTEEIS Brongniart. 



Glossopteeis sp. 



(Probably Glossoptcris hroirn iana 'Bvongn. var. inclica,.) 



Plate XIII., fig. 1. 



The fragments from Worcester are too imperfect to determine 

 with certainty. While they exhibit a fairly close agreement with 

 Feistmantel's figure of a Beaufort specimen, Glossopteris damudica 

 var. stenonceur a, '■'•'• they agree even more nearly with the large Glossop- 

 teris fronds, of which Zeiller has recently published some excellent 

 photographs under the name Glossoptcris indica Schimp.f This 

 species Zeiller considers should not be regarded as identical with 

 Glossopteris hroivniana. The African material is too meagre to 

 throw any fresh light on this difficult question of specific limitation, 

 but I have elsewhere adopted the plan of maintaining Brongniart 's 

 name, Glossoptcris hroivniana var. indica, in preference to Schimper's 

 specific designation, G. indica. I On the whole, I consider the 

 Worcester specimens identical with the type of frond figured by 

 Zeiller as G. indica, and by myself as G. hroivniana var. indica. 



Plate XIIL, fig. 1 (Z). 



A small piece of a leaf showing clearly defined secondary veins. 



Other specimens : C. A piece of a frond at least 6 cm. broad,, 

 showing a strong midrib giving off numerous oblique anastomosing 

 veins ; X, 212a, 213a, 215a ; 220a, part of a large frond showing the 

 midrib and anastomosing secondary veins ; 221a. 



* Feistmantel (89), pi. iv., fig. 7. f Zeiller (02) ; Zeiller (96), pi. 367. 



+ Seward (97). 



