79 



OVam., \. Fig. 2 : portion of a longitudinal section of the frond, 

 3 j. Fig. 3: portion of a cross-section of the frond, ^-^. Fig. 4: 

 sporophyll bearing tetraspores, slightly magd. Fig. 5 : cross-section 

 of the same as fig. 4, slightly magd. Fig. Q ; tetrasporangium, ? *-. 

 Fig. 7 : longitudinal section of a cystocarpic sporophyll, slightly 

 magd. Fig. 8 : cystocarp, = x -. Fig. 9 : placental cell, ~. 



Cryptonemia J. Agardh 1842. 



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