LMO 



Mi:s()Z()lC FLORAS OF L'MTED STATES. 



Kej)()rt of Progress of the Geological Survey of Canada for the year 1872-73, 

 page ")()ff. It is followed (pp. 66-71) by a description of the fossil plants 

 by Sir William Dawson. They consisted of coniferous wood, referred to 

 the genera (^upressinoxylon and Taxoxylon, and one (•vcadaceous fruit 

 which was named Cycadencnr pufi (Dioonites) colunibianus Dn., the last uf 

 which was illustrated by a number of magnified sections. 



In 1880 Dr. (!. M. Dawson published an elaborate report on the 

 Geology of the Queen Charlotte Islands." Considerable collections of 

 fossil plants had been made at that date and continued to l)e made 

 thereafter. In 1902 Prof. D. P. Penhallow'' described and figured in great 

 detail a fossil fern, Osmundites skidegatensis Penh. n. sp., collected l)y Dr. 

 C. F. Newcombe on Skidegate Inlet, Alliford Bay, Queen Charlotte Islands, 

 and in the same volume "" he puV)lished a somewhat full accoimt of the fossil- 

 plant material brought together l>y Sir William Dawson, including the 

 following species from the (^ueen Charlotte Islands: 



Osmundites skidegatensLs Penh. 

 Neuropteris heterophylla Brongn. 

 Ta?niopteris plumosa Dn. 

 Sagenopteris Nilsoniana (Brongn.) Ward. 

 Sageiiopteris oblongifolia Penh. n. sp. 

 Sagenopteris elliptica F'ont. 



Zaniites crassinervis Font. 



Zaniites tenuinervis Font. 



Nilsonia polymorpha cretacea Penh. u. 



var. 

 Ginkgo pusilla Dn. 

 Sef|uoia Langsdorlii (Brongn.) Heer. 



His only figures are of internal structure, .vhich does not usually give 

 specific characters, and only three of the species are even thus illustrated. 

 Some of the names are prima facie doubtful, e. g., Neuropteris heterophyUa 

 and Sagenopteris Nilsoniana, the first a Carboniferous species, and the 

 other Older Mesozoic. These at least should be figured, that one may 

 judge l)etter of the age of the formation. His Nilsonia polyniorplia 

 cretacea, which he calls a new coml)ination, but which seems to l)e a new 

 variety of his own, is also doubtful. He cites the figure in Schimper's 

 Atlas, pi. xlv, fig. 6 (copied from Schenk's Flora d. Grenzschichten, pi. 

 xxix, fig. 11), from the Rhetic of Franconia. If he has such a leaf it is 

 strong evidence of at least Jurassic age. 



a Geological Survey of Canada, Report of Progress for 1878-79, Moiilri'nl, 1880, pp. 1-23'JB. 

 ^ Trans. Roy. Soc. Canada, Soct. IV, Vol. VIII, pp. 3-29, pi. i-vi (=pp. 19-29). 

 c Pages 31-91, pi. vii-.wi (=pp. 73-91 ). 



