442 



OPHIOGLOSSALES 



FIG. 241. 



Botrychiuin Lunaria, Sw. a forma, normalis, Roeper. b var. incisa, Milde. 

 <: = var. subincisa, Roeper. All of natural size, depart of the fertile spike, with open 

 sporangia, enlarged. ^ = two open sporangia somewhat bent asunder, to show their 

 attachment, enlarged. From Luerssen in Rabenhorst's Krypt. Flora. 



development of the fertile region have been described, even up t( 

 its complete replacement by a sterile structure quite like the normal 

 sterile leaf: this will rank as "phyllody." But, on the other hand, it is 



