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NATURE-STUDY REVIEW [16:6— Sept., 1920 



The spore cases in all the Osmundas consist of reduced pinnae 

 changed in form to flattened spheres and open in halves. (Fig. 5). 



The Adder's Tongue. Ophioglossum 



This is a queer member of the fern family. 

 Its little sterile frond is separate from the fruit- 

 ing frond but both use the same stem. It may 

 be two inches or a foot in height and it grows 

 in moist meadows and thickets. It is related 

 to the Grape Ferns. 



The Curly Grass. SckizcBacecB 



' This does not look in the least like a fern ; its 

 sterile fronds indeed do look like curly grass ; its 

 fertile fronds have long stems and are triangular 

 in shape and may be from three to five inches 

 high. Curly grass grows in wet soil, in pine 

 barrens from New Jersey to Nova Scotia. 



The Climbing Fern. Lygodium 



Certainly the uninitiated would never suspect that this delcate 

 vine was a member of the fern family. It grows in moist thickets 

 and open woods ; its slender twining 

 stems may be from twelve to forty 

 inches long. The pinnules look like 

 broad lobed leaves-and occur in pairs. 

 The pinnules at the tip although still 

 leaf shaped are very small and bear 

 the spores on their under sides pro- 

 tected by 'overlapping scale-like in- 

 dusia. This beautiful fern has been 

 so ruthlessly gathered that it has be 

 come extinct in many places. Con- 

 necticut has a law protecting it. 



The Onocleas. Onoclea 



There are two species of these ferns which differ very much in 

 appearance : 



The Sensitive Fern is especially fond of gracing our roadsides 

 and wet meadows with its pale green triangular fronds and often 



The Climbing Fern 

 l'-3' 



