[SIR J. w. DAWSON] ON THE GENUS LEPIDOPHLOIOS 



63 



of terminal cones, unless we regard the long peduncles of L. Gliftonensis 

 as branches, and there is no doubt that as the leaf-bases of these are 

 Lepidodendi'oid in form and the leaves short, they might, when detached, 

 be easily mistaken for branches of Lepidodendron bearing terminal cones 



II. Lepidophloios Acadianus, Dawson. 

 (Plates I. to VIII.) 



Journal Geological Society of London, 1S6.5, page 163, with figures of stem and 

 branches in different states of leaf and cone, and of the structure of the 

 axis of the stem. "Acadian Geology," second and following editions, 

 1868, etc., with similar figures and an attempt at restoration. Page 457. 



This species, described in 1865, has recently been identified by Mr. 

 E. Kidston in his Catalogue of Palœozoic Plants in the British Museum, 

 and in his paper on Lepidophloios in the Transactions of the Royal Society 

 of Edinburgh (1893), with the type species of the genus i. laricinus of 



/// 



(9J 



Fig. C— Original Figure of Lkpidophloios Acadianus, 1865. 



(1) Impression of leaf-bases reduced. 



(2) The same, natural size. 



(3) Surface of middle bark. 



(4) Portion of leaf. 



Sternberg. While admitting, however, that portions of the bark of old 

 specimens in u fattened state are scarcely distinguishable from that 

 species, I am not prepared as yet to admit this identification, for the 

 following reasons : First, the leaves, cones and internal structure of the 

 European species cannot be said to be certainly known, and cannot there- 

 fore be compared with those of the Acadian form. Secondly, in well 

 preserved specimens of L. Acadianus the leaf-baseâ are shorter in pro- 

 portion to their width, and less completely reflexed than in Sternberg's 

 species, while they do not show the central keel seen in the best figures 



