Fig. 127 (b). 
From Strasburger ; a, branch of a frond with two female sori at the base, 
18 x diam. ; b, male and female sorus, the latter dissected longitudinally, 
18 x diam.; c, cluster of microsporangia, 27 x diam.; </, luicrosporangimn, 
80 x diam.; e, massula with glochidire, 50 x diam.; f, aglochide, separated, 
520 x diam.; g, young female sori, supported by a lobe of the frond, 20 x 
diam. ; h, mature macrospore, the indusium half removed, SO x diam.; i, 
the same, but the indusium lifted, ISO x diam.; k, longitudinal section of a 
macrospore, part of the indusium removed, SO x diam.; I, tangential section 
of indusium and macrospore, 100 x diam. 
