in 



GLUMACE.^ 



Leaves with entire, or very rarely split 



sheaths. Anthers basifixed OXVCIX CYPKRACEiB. 



Leaves with split sheaths. Anthers versatile. CC Gramine^. 



ACOTYLEDONS. 



Capsules all of one kind. Spores producing 

 a prothallus on which antheridia and 

 archegonia are developed A. 



Capsules of two kinds, one containing macro- 

 spores which produce a prothallus which 

 bears archegonia, and the other micro- 

 spores which produce antheridia. B. 



A. 



Capsules in clusters on the back or edge of 



leafy fronds, rarely forming spikes or 



or panicles. Elaters 0. Filices. 



Capsules placed on the underside of stalked, 



peltate scales, which form a cone at the 



end of a jointed leafless stem or branch. 



Elaters present. EquisetacetE. 



Capsules solitary in the axils of small 



closely placed 1-nerved leaves or bracts. 



Elaters 0. LycopoDTACEiE. 



B. 



Capsules of both kinds solitary in the axils 

 of small, closely placed 1-nerved leaves 

 or bracts, those with large spores having 

 several in each capsule. Selaginellacej:. 



Spores of two kinds, the sporangia of the 

 large spores having one spore only in 

 each capsule. ' Rhizocarpe^. 



^X^cXo^ 



