99 



Lycopodium annotinum. 



inundatum. 



clavatum. 



Chamcecyparissus. — This plant has been described by 



several authors under the name of L. complanatum ; from which the 

 present plant was distinguished by A. Braun. M. VVirtgen remarks : 

 "The true L. complanatum of Linneus, which is distinguished by 

 dichotomous branches, lanceolate exterior and smaller subulate in- 

 terior leaves, and several other characters, does not grow in the Rhine 

 province. It appears to be a plant of eastern Germany." — p. 10. 

 We wish to refrain from expressing any opinion as to the validity of the 

 characters by which this well-known plant is separated from the Ly- 

 copodium complanatum of Linneus, for which it has hitherto passed 

 without a question. 



Grammitis Ceterach. 



Polypodium vulgare. — Of this species Wirtgen distinguishes four 

 varieties, under the names of auriculatum, serratum, crenatum, and op- 

 positum. 



Phegopteris. 



Dryopteris. 



Robertianum of Hoffman = calcareum of Smith and 



Hooker: the restoration of the older name is highly to be com- 

 mended. 



Aspidium Lonchitis. 



aculeatum. — All the kindred forms are unhesitatingly 



associated under this name. 



Polystichum Thelypteris. 



Oreopteris. 



Filix-mas. 



crislatum = the cristatum of Roth, &c, not of Willde- 



now; it is the cristatum of Linneus in part, and the Callipteris of 

 Ehrhart. 



spinulosum = Aspidium spinulosum of Hooker, and 



Asp. dilatatum of Smith : as the ferns comprised under this name 

 have recently undergone investigation in this country, we shall quote 

 M. Wirtgen's remarks at length, and add a few observations of our 

 own. 



"No. 26. Polystichum spinulosum, De C. Spiney Pol. Aspidium 

 spinulosum, Schk. In forests throughout the whole district, in shady 

 and sunny, in damp and dry, places. Summer. Frond 1 — 1£ ft. 

 high, mostly of a rather yellow green ; commonly dies away in autumn. 



