XVj LEPIDOSTROBUS 181 



Krasser^ has described a similar, but probably not specifically 

 identical, type from China ; from Devonian rocks of Spitzbergen 

 Nathorst" has figured, under the name Bergeria, an example of 

 this form of stem, and Szajnocha' has described other specimens 

 from Lower Carboniferous strata in the Argentine. 



Lepidodendron australe has been recorded from several 

 Australian localities* from strata below those containing the 

 genus Glossopteris and other members of the Glossopteris, or, as 

 it has recently been re-christened, the Gangamopteris" Flora. 



viii. Fertile shoots of Lepidodendron. 



A. Lepidostrobus. 



The generic name Lepidostrobus was first used by Brong- 

 niart' for the cones of Lepidodendron, the type-species of the 

 genus being Lepidostrobus ornatus, the designation given by 

 the author of the genus to a Lepidostrobus previously figured 

 by Parkinson^ in his Organic Remains of a Former World. 

 The generic name Flemingites proposed by Carruthers^ in 1865, 

 under a misapprehension as to the nature of spores which he 

 identified as sporangia, was applied to specimens of true Lepido- 

 strobi. Brongniart also instituted the generic name Lepido- 

 phyllum for detached leaves of Lepidodendron, both vegetative 

 and fertile; the specimen figured by liim in 1822 as Filicites 

 {Glossopteris) dubius', and which was afterwards made the type- 

 species of the genus, was recognised as being a portion of the 

 lanceolate limb of a large single-veined sporophyll belonging to 

 a species of Lepidostrobus. 



In an unusually large Lepidophyllum, or detached sporophyll 

 of Lepidostrobus, in the Manchester University Museum, the 

 free laminar portion reaches a length of 8 cm. 



It is not uncommon to find Lepidodendron preserved in the 

 form of a shell of outer cortex, which has become separated 

 along the phellogen from the rest of the stem ; as the result of 



1 Krasser (00) PI. ii. fig. 1. ^ Nathorst (94) A. PI. ii. fig. 8. 



3 Szajnocha (91) p. 203. ■» See Etheridge (90) ; David and Pittman (93). 



" White (08). » Brongniart (28) A. p. 87. 



' Parkinson (11) A. PI. ix. fig. 1, p. 428. ^ Carruthers (69^). 



9 Brongniart (22) A. PI. ii. fig. 4. 



