﻿98 PEOF. A. c. SEWAED ON [Feb. 1908^ 



Goepp.,^ are similar types of leaf. I am not aware of any Triassic 

 or Rhsetic fossils that bear so close a resemblance to the African 

 leaf as the Palgeozoic species to which reference has been made. 



Genus Cladophlebis. 



Cladophlebis (Todites) Rcesseeti (Presl). (PL YIII.) 



In the absence of fertile specimens it is better to adopt the non- 

 committal term Cladophlebis, with the addition of Todites, as an 

 indication of what I have little doubt is the true position of the 

 species. 



A specimen from the Molteno Beds on the Indwe Eiver, repre- 

 sented in PI. YIII, shows part of a broad rachis, 16 centimetres 

 long, giving off linear pinuse which must have reached a con- 

 siderable length ; the longest of the incomplete pinnae is 13 centi- 

 metres long, and of comparatively-uniform breadth. The pinnules 

 are short and broad, in some cases slightly falcate ; dichotomously- 

 branched secondary veins spring at an acute angle from a midrib. 

 In habit and in the venation of the ultimate segments the specimen 

 recalls Todites Williamsoni ^ from Inferior-Oolite rocks, as also the 

 Rhaetic fern described by Schenk from Pranconia as Acrostichites 

 Gceppertianus,^ and more recently by Prof. Zeiller under the name 

 of Cladophlebis {Todea) Roesserti "^ ; the resemblance to the latter 

 type appears close enough to warrant the use of this specific name. 

 The African frond differs from the majority of specimens hitherto 

 referred to this species in the somewhat smaller size of the 

 pinnules, but this can hardly be regarded as a sufficient reason for 

 the institution of a new name. The leaves described by Dr. Hartz 

 from Greenland as Cladophlebis Roesserti, var. groenlandica,^ are 

 characterized by pinnules of unusually-large size. The Indwe 

 fossil may be compared also with Pecopteris Riitimeyeri, Heer,^ 

 figured by Dr. Leuthardt from the Keuper of Basel ; with Lepidopteris 

 stuttgartiensis (Jaeg.) "^ from the Keuper of Stuttgart ; and with 

 fronds figured by Mr. Fontaine from the Ehaetic of Virginia.** 



T^NioPTEEis Caeetjtheesi, Ten. Woods. 



This species, previously described from the Molteno Beds,^ is repre- 

 sented by portions of several leaves from the same beds at Konings 

 Kroon, varying considerably in breadth, and characterized by dichoto- 



1 Gceppert (41) Lief. 5 & 6, pi. xi. 



2 Seward (00) pi. xv, figs. 1-3. 

 ' Schenk (67) pis. v & vii. 



* Zeiller (02) p. 38 & pis. ii-iii. 

 5 Hartz (96) pp. 228-31 & pis. vii-x, xii. 

 ^ Leuthardt (04) vol. xxxi, pi. xv, figs. 1 & 2. 

 ■^ Schimper (74) pi. xxxiv. 

 ^ Fontaine (83) pis. xi-xiv, xxvii. 



» Seward (03) pp. 59-61 ; Feistmantel (89) pp. 65-66 & pi. ii, figs. 6-10 

 [sep. cop.]. 



