PLATE XXXIV. 



CHARA EVOLUTA. 



Fig. 1. Plant, natural size. 

 •' 2, Stem, showing bases of leaves of a whorl, with one entire leaf 



and stipular whorl; 2, a, b, spines. x50. 

 " 3, 4, 5, Cross-sections of stem. x50. 

 " 6, Spore. x50. 

 " 7, Spore. xlOO. 



