190 SYSTEMATIC BOTANY. 



Class 4. Carposporeae. 



With chlorophyll. Without chlorophyll. 



Cohoch&tce. Ascomycetes. 



Gymnoascus. 



Floridecs. Discomycetes. 



Nemalieae. Erysiplieae. 



Ceramieaa. Tu'beracese. 



Dudresnaya. Pyrenomycetes. 



Lichenes ? 



Characece. JEcidiomycetes. 



Basidiomycetes. 

 Exobasidium. 

 Tremellini. 

 Hymenomycetes. 

 Gasteromycetes. 



Group II. Cormophyta. 

 Series I. BEYOPHYTA. 

 Class 1. Musci. 

 Class 2. Hepaticse. 



Series II. PTEKIDOPHYTA. 



Class 1. Eilicales. 



i. Stipulate. 



Ophioglossese. 

 Marattiaceae. 

 ii. Filices. 

 iii. jRhizocarpece. 



Class 2. Equisetacese. 



Class 3. Dichotornae. 



i. Lycopodiacece. 

 Lycopodieae. 

 Psiloteas. 

 Phylloglosseas. 

 ii. Liyulatce. 



Selaginelleaa. 

 Isoeteee. 



Caruel's System. Quite recently an arrangement has been pro- 

 posed by Professor Caruel, based on the circumstance that there are 

 in the same individual plants sexual forms or stages, male or female 

 as the case may be, and an asexual or neutral form ; thus in Phane- 

 rogams the asexual form is the embryo developing indefinitely and 

 becoming ultimately an adult plant, which latter produces a male 

 form, the pollen, and a female form, the ovule, which becomes a 

 seed with definite evolution, containing " oospheres " or germinal 

 vesicles in a closed " oogoniurn " or embryo-sac. The following 

 are the outlines of the scheme, which we give in this place, though 



