536 SIR J. W. DAWSON — FOSSILS FROM NEWFOUNDLAND. 



two species of Sigillaria, S. augustata and S. it^icZw^a^a, which are scarcely dis- 

 tinguishable, so far as the old bark is concerned, from L. murrayanum ; and 

 Goldenberg * has two similar species, S. aspera and S. coardata. Golden- 

 berg's two species are by the character of their scars unquestionably Sigillaria, 

 but S. augustata and S. undulata of Sauveur, especially the former, might 

 well have been lepidodendroid trees very near to L. murrayanum. This, 

 however, could be certainly ascertained only if more complete specimens 

 could be found. On the whole one might infer that as the spiral and lepi- 

 dodendroid characters of Sigillaria appear most prominently on young 

 branches, the more lepidodendroid and spiral sigillaria are the lowest in type 

 and the ribbed lepidodendra among the highest of that genus. But such a 

 conclusion must be received as liable to many exceptions. 



Annotated List of well known Plants. 



LEPIDODENDRA. 



"^ Lepidodendron pictoense, Dawsonf. — Specimens imperfectly preserved, but 

 in general aspect and form of the leaves and cones resembling this 

 species, are not infrequent in the Newfoundland shales. I see that 

 my friend, Mr. Kidston, in the British Museum catalogue of fossil 

 plants, refers this species doubtfully to Lepldodendronrimosum. The 

 latter is known to me in Nova Scotia only by the bark of mature 

 stems, but this is entirely distinct from similar portions of iv.joic^oe7ise, 

 in which the leaf-bases remain small but occur in strips closely placed 

 together and separated by deep clefts in the bark. In short it be- 

 longs to a type altogether different from that of L. rimosum. Its 

 nearest European allies seem to be L. haidingeri of Ettingshausen and 

 L. lycopodioides of Sternberg; but the latter is now regarded by 

 Kidston I as identical with L. sternbergi. 



FILICES. 



* Neuropteris rarinervis, Buubury. 



* N. auriculata, Brongt. (or allied species). 



* Altehopteris lonchitica, Brongt. 



* Pecopteris abbreviata, Brongt. 



* P. oreopteroides, Brongt. (or allied species). 



^ P. arborescens, Brongt. This fossil shows rounded impressions of sori on 

 the upper surface of the pinnules. 



* Planzen versteinerungen, 1857, pi. ix. 



t Canadian Naturalist, vol. viii, 1863, p. 431; Acadian Geology, 1878, p. 487, fig. 169. 



X Brit. Mu.s. Catalogue, 1886, p. 151. 



