PLATE LX. 
































Figs. 584 and 585. Oedogonium wabashense Tiffany...............0........5. 156 
Pips eas. Oe: praticolumy Pranseat eras se) ee ee ey et a det 156 
Pere oe, ACvosporam Martsany:) oe earl cremate te ess se ye tee eames 157 
Fig. 590. Oe. acrosporum f. boreale (Wolle) Hirn. (After Wolle).............158 
Fig. 591. Oe. acrosporum v. majusculum Nordst. (After Hirn).............. 159 
Fig. 592. Oe. acrosporum v. bathmidosporum (Nord.) Hirn. (After Hirn)....158 
Fig. 593. Oe. acrosporum v. floridense Wolle. (After Wolle)................. 
249 
