28 THE CANADIAN NATURALIST. [March 



" PoLYPODiUM ACROSTICHOIDES — Pennsylvania, Carolina, 

 Tennessee et Carol, maritim" is Aspidiuin acrostichoides. 



" PoLYPODiU3i Thelypterioides — montibus Alle&eni a 

 Canada; Hab. in Canada et ad Carolinanum ; Lac Champlain ;" 

 is Aspid. Thelypteris ; a very small sterile frond on same page is 

 doubtful, it may be Asphnium Filix-foemina. 



" PoLYPODiUM MARGINALE — Kentucky, Pennsylvania, Nec- 

 toux ;" is Aspidium marginale. 



" PoLYPODiUM PUNCTILOBULUM — Canada ;" one frond of 

 Dicksoiiia punctilohula. 



" PoLYPODixJM BULBIFERUM — in Canada ;" two fronds of 

 Gi/st. hidhifera. 



*' POLYPODIUM FiLix-FCEMiNA ? — in Canada, a rapporter a son 

 esp." is Asphnium Filix-foemina, and 



" POLYPODIUM ASPLENioiDES — a Nova Anglia ad Carolinam ;" 

 is the same species. 



" PoLYPODiUM CRISTATUM — Montib. Carolinas ? et certe in 

 Canada ;" is one rather small frond of Aspidium spinulosum. 



" POLYPODIUM TENUE — Quclec ;" is one frond of Cyst, 

 fragilis. 



" PoLYPODiUM RUFIDULUM — Hab. in rupibus Canadae, Novae 

 Angliae, et Novae Caesareae ;" is Woodsia llvensis. 



" POLYPODIUM LANOSUM — Hab. in excelsis montibus saxosis 

 Tennessee et Carolinae septentrionalis ;" is Cheilanthes vestita 

 of Gray's Manual, five medium-sized fronds. 



[Michaux's appears to be the earliest publication of this 

 species ; the next (with some doubt as to whether he does not 

 refer to Ch. tomentosa) is that of K. Sprengel in Anleitung zur 

 Kenntniss der Gewachse vol. iii. (1804) p. 122, who describes his 

 species as follows : — 



^' Adiantum vestitum nenne ich eine Art, die Bosc d' Antic in 

 Carolina fand. Sie hat einen 3-fath gefiederten Wedel, der 

 iiber und iiber mit feinem wolHgtem Haare bedeckt ist. Die 

 Blattchen der iiiii. Ordnung sind ei-lanzettformig, die der letzten 

 Ordnung sind linienformig gekerbt und schlagen sich um die 

 Samenhaufchen zuriick. Bosc nannte diesen Farn Acrostichum 

 hispidum." Where " Bosc named this fern" I have not been able to 

 find out, nor can I see any reason why hispidum should have been 

 changed into vestitum, for if Lamarck (the friend and biographer 

 of Bosc) and Swartz be right, Sprengel did not even alter the 

 genus. Bosc botanized in the Southern States between 1798 



