162 LEriDODENDRON'. 



Renault's species is a true Lepidodendron, near to L. Harcowtti, 

 and from the occurrence of numerous silicified leaves associated 

 with the stem, closely resembling those of L. Pedroanam, he 

 suggests that L. Derby i may perhaps be only a badly preserved 

 stem of that species. 



L. Derby i is known only from Brazil. 



Not represented in the British Museum collection. 



3. Lepidodendron (Knorria), sp. (from the Orange 

 Biver Colony). 



Kidston 1 has figured some specimens from Western Australia, 

 includiug Lepidodendron [Knorria) in association with Stigmaria, 

 and Lycopodean leaves. These fossils did not, however, occur in 

 association with the Glossopteris flora, and the precise age of the 

 rocks is doubtful. 



V. 2900«, V. 2900&. Two sandstone casts presenting great 

 similarity to the Knorria type of Lepidodendroid stem occurring 

 in the European Coal-measures. One of these shows the 

 impersistent longitudinal ridges fairly clearly. 



Farm Zwartkoppies (at 4,600 feet s.m.), Vredefort, Orange Biver 

 Colony. Pres. by D. Draper, Esq., 1893. 



Obscure Lepidodendroid Fossils. 



V. 7596«, 7596/>. Two badly preserved sandstone casts, 

 probably decorticated stems belonging to some Lycopod, such as 

 Lepidodendron or Sigillaria. 



Sengwe Coalfield, Bhodesia. 



Pres. by A. J. C. Ifolyneux, Esq., 1901. 



V. 7594. A badly preserved, ribbed cast which I briefly 

 described in 1903. 2 In appearance it rather recalls a Sigillaria, 

 but it is impossible to determine it with confidence. The ribs are 

 of unequal breadth, and there are no traces of leaf-scars. 



Sengwe Coalfield, Bhodesia. 



Pres. by A. J. C. Molymux, Esq., 1901. 



1 Kidston (90), p. 102, pi. iv, figs. 4-8. 



2 Arber (03), p. 290. 



