BLUNT-LOBED WOODSIA. 



VC^ooJsia ohtusa (Spreng.) Torr. 



T E A V ES broaa lanceolate, almost twice pinnate. Pinnae 

 -I— ' aoout t'sventy pairs, obtuse, tne lower one separated, the 

 oases nearly aivided into oolongf pinnules, tne upper parts 

 more or less cut into segments, all aivisions obtuse and mi- 

 nutely scalloped. Son small, round, near tbe margins of 

 llie segments; tbe indusium distinct, fastened under tbe sorus, 

 splitting at leng'tb into broad pieces wbicb spread out, star- 

 like. Stems ligbt g'reen, witb a few brownisb scales, not 

 jomted, arising from as bort rootstock. Leaves several 

 incbes long, minutely bairy underneatb. 



Xbis woodsia is not common; it is sometimes confused 

 Avitb tbe fragile bladder fern wKicb it somev^bat resembles 

 in general outline. It is found on sbaded ledges, more often 

 in tbe Lower Dells. 



Pa^e Forly-seven 



