GENERA OF FUNGI 



(3) Hymenium of gills or gill-like veins 

 II. Definite hymenium lacking; spore-mass gelatinous 

 or powdery, typically enclosed in a peridium, 

 or elevated at maturity 



1. Gleba more or less gelatinous, enclosed at first 



in a volva, then raised on the receptacle 



2. Gleba firm or powdery, not gelatinous, enclosed 



in a peridium 



a. Peridium epigean 



(i) Gleba typically powdery or cellular, en- 

 closed in a more or less globose peridium 

 which opens irregularly or by a definite 

 mouth 



(2) Gleba in seed-like sporiangioles which are 

 borne in a more or less cup-shaped peri- 

 dium 



b. Peridium hypogean, closed 



Lycoperdaceae 116 



Nidulariaceae 120 



Hymenogastraceae iig 



Fungi Imperfecti 



cup-shaped or hysterioid 



I. Conidia present 



1. Conidia in globoid, 



pycnidia 



a. Pycnidia fleshy or waxy, bright colored 



b. Pycnidia typically membranous to carbonous, 



dark, brown or black 

 (i) Pycnidia more or less globose, rarely cylin- 

 dric 



(2) Pycnidia dimidiate, shield-shaped 



(3) Pycnidia disciform, cup-shaped or hyster- 



ioid 



2. Conidia not in pycnidia 



a. Hyphae short or obsolete, borne on a matrix 



or stratum 



b. Hyphae not on a matrix, typically well-devel- 



oped, but sometimes short or even lacking 

 (i) Hyphae in more or less loose cottony 

 masses 



(a) Hyphae and conidia clear or bright col- 



ored 



(b) Hyphae and conidia both typically dark 



or one or the other always dark 

 (2) Hyphae compactly united to form a globose 

 to cylindric body which is often stalked 



(a) Hyphal body cylindric to capitate, stalked, 



i. e., a synnema 



(b) Hyphal body more or less globose, sessile, 



i. e., a sporodochium 



II. Conidia lacking 



Phomatales 

 Zythiaceae 



Moniliaceae 

 Dematiaceae 



Stilbaceae 



Tuberculariaceae 

 Sterile Mycelia 



121 

 128 



138 



146 



154 



iS8 

 164 



