PLATE XXIX. 



NITELLA TRANSLUOENS. 



Fig 1, Plant, natural size. 

 '• 2. Fruiting verticel. xoO 

 " .S, Spore. x50. 

 '• i. Membrane of spore. .\3.50. 

 " 6, 7, End-cells of leaves. x.50. 



Forma confei'voides. 

 " 5, End-cells of leaflet. x350. 

 " 8, Branch with fruiting verticel. xoO. 



