186 PHYCOMYCETEAE 



Key to the Genera of the Family Kickxellaceae 



Sporocladia in a whorl at the apex of the sporangiophore. Kickxella 



Sporocladia pleurogenous on the sporangiophore. 



Sporocladia producing sporangioles (conidia) on the upper side. 



Martensella 



Sporocladia producing sporangioles on the lower side. Coemansia 



Key to the Genera of Family Endogonaceae 



Fruiting body containing reproductive cells throughout, either sporangia, or 

 chlamydospores or zygospores. Endogone 



Fruiting body hollow, containing chlamydospores scattered irregularly in the thin 

 wall. GlazieUa 



Fruiting body not hollow, rather firm, chlamydospores arranged in regular 

 layers. Sclerocystis 



Key to the Genera of Order Entomophthorales 



Parasitic in the gametophytes of ferns. Completoria 



Parasitic in the desmid genus Closterium. Ancylistes 



Saprophytic in the excrement of frogs and lizards. Basidiobolus 



Saprophytic or weakly parasitic on fungi (rarely on insects) ; the septate mycelium 



extensive: conidiophores elongated, gametangia unequal, the zygospore 



developed in the larger, receptive gametangium. Conidiobolus 



Parasitic in insects. 



Conidia produced internally in the body of the insect, not discharged with 



violence. Massospora 



Conidia produced on conidiophores extruded through the body wall, discharged 



with violence. Entoinophthora^ 



Key to the Families and Genera of Order Zoopagales 



Saprophytes or commensal parasites, attached to, but not penetrating through, 

 the membrane of the alimentary canal of aquatic insects (chiefly larvae). 

 Fungus filament not branched, zygospores approximately spherical. 



Family Harpellaceae 

 Conidia curved cylindrical, with 4 basal filaments. Harpella 



Conidia navicular, stalked, with one basal filament. Stachylina 



Conidia tubular, borne side by side on the racket-shaped terminal cell of the 

 filament. Opuntiella 



Fungus filament branched, zygospores navicular or biconical, stalked. 



Family Genistellaceae 

 Conidia elongate-ovoid, with 2 basal filaments, borne on one-sided spike. 



Geiiistella 

 Conidia long stalked, curved like a banana, in a crown at apex of plant. 



Orphella 

 Conidia terete on a one-sided spike. Stipella 



Conidia rod-shaped arising laterally on a somewhat twisted stipe, with one 



basal filament. Glotzia 



Conidia ovoid, with single basal filament, on one-sided spikes. Plant bulbous 

 at base. Graminella 



'The name Empusa is not valid for this, having been used previously for an 

 orchid. 



