SERIES L 



MELANOSPERME^. 



THE OLIVE-GREEN SERIES. 



Marine plants of an olive-green^ or olive-brown 

 colour. Fructification monoecious^ or dioecious. 

 Spores either external or contained, singly or in 

 groups, in proper conceptacles. Antheridia (trans- 

 parent cells), contain small active bodies moving 

 by means of vibratile cilia. 



