PLATE XXXIV. 



CHARA EVOLCTA. 



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, i, 5, Cross-sections of stem. x50. 

 " G, Spore. x50. 

 " 7, Spore. .xlOO. 



