﻿Vol. 64.] FOSSIL PLANTS FROM SOUTH AFKICA. 105 



The Burghersdorp Beds. 



The list of Burghersdorp species is tabulated on p. 85. Omitting 

 those species which are common to the Molteno Beds, the available 

 evidence is not sufficient to justify a pronouncement as to geological 

 horizon. The species Thiymfeldia sphenopteroides and Tceniopteris 

 Carruthersi, common to both Burghersdorp and Molteno Beds, were 

 obtained from the transition-zone referred to on p. 84. Schizo- 

 neura sp., Odontopteris Browni, Strobilites Iclvus, and Stigmato- 

 dendron dubium were collected from horizons 200 to 500 feet below 

 the Molteno Beds. Danceopsis Hughesi, from Lady Erere, was found 

 1500 feet below the Molteno Beds, in rocks assigned by Mr. Du Toit 

 to the Triassic Period. 



Danceopsis Hughesi is recorded from the lihaetic of Tongking and 

 China, and in India it is an abundant type in the Middle Gondwana 

 Series. 



Odontopteris Broivni closely resembles Permian species referred 

 to the same genus, and Strobilites laxus is compared especially with 

 Triassic species of the genus Voltzia. 



The inference is, that while possessing certain Rhsetic types the 

 flora, as a whole, points to a somewhat lower horizon. The 

 similarity between Triassic, particularly Keuper, and Bhsetic floras 

 is, however, so close that it is unsafe to place too much trust in the 

 evidence afforded by a few imperfect specimens. The Molteno and 

 Burghersdorp floras are clearly marked off from the floras described 

 by Prof. Zeiller from the neighbourhood of Johannesburg and by 

 myself from Vereeniging ; Prof. Zeiller's plants are assigned to the 

 Beaufort Series, while those from Vereeniging are probably refer- 

 able to the Ecca Series. 



IV. Bibliography. 



Aebeb, E. a, N. (05). ' Catalogue of the Fossil Plants of the Glossopferis-Flova 



in the Department of Geology, Brit. Mus. (Nat. Hist.) ' London, 1905. 

 Bain, A. G. (52). ' On the Geology of Southern Africa ' Trans. Geol. Soc. ser. 2, 



vol. vii (1845-56) p. 175. 

 Bbongniart, a. (28). ' Kssai d'une Flore du Gros Bigarre ' Ann. Sci. Nat. vol. xv 



(1828) p. 435. 

 Bronontaet, a. (45). See Murcuison, R. 

 BuNiiURY, Sir Charles J. F. (61). 'Notes on a Collection of Fossil Plants from 



Ndgpur, C-entral India' Quart. Journ. (Jool. Soc. vol. xvii (1861) p. 325. 

 Du Toit, A. L. (05). ' (i(!ological Survey of the Divisions of Aliwal North, Ilorschol, 



Barkly Fast, & Part of Wodehouse ' Ninth Ann. Ucp. Geol. Comm. Cape 



Colony for 1904 (1905) p. 73. 

 Du Toit, A. L. (06). ' The (Jcological Survey of Glen Grey, & parts of Quocnstown 



& Wodehouse, including the Indwe Area' Tenth Ann. Rep. Geol. Comm. Cnpo 



Colony for IT^Oo (190()) j). 97. 

 EiCHWALi), K. I)' (60). ' Letha-a Rossica ' vol. i (1860) Stuttgart. 

 ElJiERtUGK, R., Junr. (90). ' A Largo Bquisetnm from the Hawkeshury Sandstone' 



Proc. Linn. Soc. N. S. Wales, ser. 2, vol. v (1890-91) p. 415. 

 Ettinosiiauhen, (I. VON (52). ' Begn'induiig einiger ncuon odor iiicht gonau- 



hekannten Arten (Un- Lias- <t Oolithtlora' Abliandl. k.-k. (icol. KtMchsniist. 



vol. i (1852) pt. iii, no. 3. 

 FEiSTMANTEr,, (). (77). ' Juriissic (Liassic) Flora of the Kajmahal Group in the 



Rajmahal Hills ' Mem. (ieol. Surv. India (Pal. lyd.) ser! 2, vol. i, pt. ii (1877). 



