﻿104 PROF. A. c. SEWAED ON [Feb. 1908^ 



Pterophyllfm sp. (PI. II, fig. 6.) 



The specimen from the Molteno Beds of Konings Kroon, shown in 

 PI. II, fig. 6, consists of a small piece of a frond 3-5 centimetres 

 long; the parallel-veined segments are continuous one with the other 

 at the base. The inclination of the segments suggests proximity 

 to the apex of the leaf. The veins, which are less numerous than 

 in the specimen represented in PI. II, fig. 5, are in some cases- 

 dichotomously branched near the rachis. 



The fragment resembles Nilssonia acuminata figured by Schenk ^ 

 from Franconia, and Pt. Bichthofeni described by the same author 

 from the Jurassic of China." Cteyiis Potockii, Rac, from Jurassic 

 rocks in Poland ^ resembles the Molteno specimen, except in the 

 Ctenis-ty-pe of venation: Pt. Portali, Zeill., already compared with the 

 previous specimen, presents some resemblance to the fragment 

 shown in PL II, fig. 6. 



III. Conclusion. 



The following list includes the Stormberg plants previously 

 described, together with the species dealt with in this paper : — 



Schizoneura Carver ei, Zeill. 



Schizoneura sp. 



Thinnfeldia odontopteroides (Morr.). 



Thinnfeldia rhorahoidalts, Ett. 



Thinnfeldia sphenopteroides, sp. nov. 



Thinnfeldia sp. 



Cladophlebis (Todites) Eoesserti 



T(Bniopteris Carruther&i, Ten. Woods. 

 Ckiropteris cnneata (Carr.). 

 Chiropteris Zeilleri, Sew. 

 Baiera stormhergensis, Sew. 

 Baiera Schenki, Feistm. 

 Baiera moltenensis, sp. nov. 

 PterophylluTii sp. 



(Presl). { Phoenicopsis (Desmiophylhim) elongata 



Cladophlebis sp., Feistm. | (Mori-.). 



Callipteridium stormhergense, Sew. j Stenopteris elongata (Carr.). 



The additional species afford further evidence in favour of 

 assigning the plant-beds of the Stormberg Series to a Ehaetic 

 horizon. It is noteworthy that no specimens of Glossopteris have 

 been obtained ; this genus, which played so prominent a part in the 

 floras of the Lower and Middle Karroo Series, is represented in the 

 Ehaetic flora of Tongking, 



We have as yet discovered but a small number of types in the 

 Stormberg Beds ; but, in its general facies, the flora shows a 

 striking similarity to Ehaetic floras in other parts of the world. 

 The absence of any examples of Clatliropteris, DictyopJiyUimi^ and 

 Camptopteris — ferns which must have formed a conspicuous feature 

 in the Ehaetic vegetation of Tongking and Europe — constitutes an 

 interesting peculiarity of the African flora. The recent discovery 

 of a fragment of Clatliropteris in beds of uncertain age in Egj-pt * 

 afi'ords the onl}' known evidenc-e of the occurrence of this family of 

 ferns on the continent of Africa. 



^ Schenk (67) pi. xxxii, figs. 1-7 & pi. sxxiii, fig. 1. 

 - Schenk (83) p. 247 & pis. xlvii-xlviii. 

 2 Kaciborski (94) pi. xvii, figs. 2-5. 

 * Seward (07). 



