﻿122 PEOF. A. C. SEWAKD AND j\rK. T. N. LESLIE ON [Feb. I908, 



of the generic name Cordaites. Another fact worthy of mention 

 is the recent discovery at Yereeniging of stumps of trees with 

 spreading roots, surrounded by a rock containing abundant leaves 

 of Noeggeratliiopsis : the roots are similar to those of Cordaites 

 figured by Grand'Eury.^ The Yereeniging leaves may be com- 

 pared especially with Cordaites palmoeformis (Goeppert) and C. jprin- 

 cipalis (Germar).^ 



CoNiTEs sp. (Text-fig. 11.) 



A specimen from Yereeniging has already been described under 

 this name ^ ; another fragment of what is no doubt the same type 

 is represented in the figure : it consists of crowded bodies re- 

 T^. ., ^ r. .. . ^ sembling cone-scales, with irregu- 



Fig. 11.— Comtes sp.(x 3). larly-polygonal bases barely 1 milli- 

 metre across, having flattened longi- 

 tudinally-striated sides 1*5 mm. 

 broad. The likeness to a piece of 

 a small Araucarian cone, formerly 

 noticed, is again suggested by this 

 specimen, but the discovery of more 

 satisfactory material may lead to an 

 entirely-different conclusion. There 

 is some resemblance between this 

 tossil and one figured by Prof. ZeiUer* 

 from Carboniferous rocks in Asia 

 Minor, under the name Plinthiotheca 

 anatolica, but we do not regard the pair as more than superficially 

 similar. 



III. Conclusion". 



In endeavouring to determine the age of the Yereeniging beds 

 from the evidence of the fossil plants, we must consider each record 

 individually, and then adjust the balance of probabilities from the 

 point of view of the flora as a whole. 



ScMzoneura sp. — We possess very incomplete data in regard to 

 the type of Equisetaceous plant represented in the Yereeniging 

 flora. The fossil described in 1897 ® as an Equisetaceous stem is 

 much too imperfect to serve as an index of age ; and, in the absence 

 of well-preserved specimens, we cannot draw any conclusion from 

 fragments belonging to a class of plants with so wide a range as 

 the Equisetales. 



1 Mellor & Leslie (06) p. 127 ; Grand'Eurj (90) pi. vi. figs. 14-16. 



2 Renault & Zeiller (88) p. 585 & pi. Ixvi ; Grand'Eury (77) p. 216 & pi. rsi, 

 % 7. 



3 Seward (97) p. 331 & pi. xxii, fig. 2. 

 < Zeiller (99) p. 54 & pi. iv, fig. 18. 



= Seward (97) p. 325 & pi. xxii, fig. 4 b. 



