Vi 



The Febx Lover's Companion 



remain erect all winter, and often do not discharge their 

 spores until the following spring. The little berrj'-like 

 structures of the fertile frond represent pinnules, bearing 

 fruit-dots, around which they are closely rolled. As 

 Waters remarks, "Most ferns hold the sori in the open 

 hand, but the sensitive fern gra.sps them tightly in the 

 clenched fist." 



Var. ohtusilohuta is an abortive form with the fertile 

 segments only partially developed. The illustration shows 

 several intermediate forms. 



Sori of Sensit 



