112 The Botanical Gazette. [April, 
both the Sporophyta and the Gamophyta three fairly well- 
parasitic upon the sexual plant, e. g., CEdogonium, Chara, 
Riccia. Second, the higher forms are self-supporting and do 
not nurse the gametophytes, e. g., the higher mosses, the 
lower fernworts and club-mosses. Third, the highest forms 
act as host-plants for dependent, symbiotic gametophytes and 
METAPHYTA 
METAZOA 
—s" 
GAMOZOA 
SPOROZOA 
— 
PROTISTA 
are so specialized, e. g., the seed-plants and the higher i 
worts and club-mosses. These groups might be nam 
respectively the Protosporophyta, Eusporophyta, and Meta 
sporophyta, in order to facilitate reference without paraphra 4 
ing. Similarly, the lowest Gamophyta do not furnish nutri 
for sporophytic structures of their own species, € 8 ' 
