PLATE LIX. 




Teen SO MICRONS 
Page 
Figs. 573-576. Oedogonium supremum Tiffany....... Te hae aio oc 156 
Riso eamOe Obthuncatum Wittt... 00. ceca. oo ee Oe eee eee 155 
Fig. 578. Oc. obtruncatum v. ellipsoideum Wittr. (Redrawn from Hirn)...... 155 
Figs. 579-582. Oe. obtruncatum v. completum Hirn. (Redrawn from Hirn)...155 
Bis. 58o.0 eOemciliatume(Hass.)) Pringsii sy yee . lice cei 11 eens eee eet 153 
248 
