LEPTOSTROMATACEAE 131 



(1) Pycnidia on a subicle 



(a) Subicle of fumaginous hyphae Eriothyrium 10:418 



(b) Subicle of broad fibers fTrichopeltium 10:418 



(Trichopeltulum) 



(2) Pycnidia without subicle 



(a) Conidia muticate 



x. Pycnidia stellately divided or cleft 



Actinothecium 3:638 

 y. Pycnidia depressed-clypeate, not stellate 



Leptothyrium 3: 626 

 (Sacidium 3: 649) 



(b) Conidia setulose at each end Tracyella 18:424 

 b. Basidia present, cylindric Piggotia 3:636 



2. Pycnidia more or less clearly cleft lengthwise 



a. Pycnidia elongate or lanceolate Leptostroma 3:639 



b. Pycnidia subcircular Labrella 3: 647 



II. Pycnidia in a stroma 



1. Stroma phyllogenous Melasmia 3: 637 



2. Stroma growing on animal hairs Trichophila 10:423 



Phaeosporae 



3:653, 10:423, 14:996, 18:4-29 



Conidia dark, i-celled, globose to oblong 



I. Pycnidia separate 



1. Pycnidia on a dark subicle, radiately dehiscent 



Asterostomella 10:423 



2. Pycnidia not on a subicle 



a. Conidia conglobate, verrucose Discomycopsella 18:429 



b. Conidia not conglobate, smooth Pirostoma 3:653 



II. Pycnidia in a stroma 



1. Stroma membranous 



a. Pycnidia distinct, exserted Peltostroma 18:430 



b. Pycnidia merely locules, immersed Lasmenia 10:425 



2. Stroma carbonous ; locules many, immersed 



Poropeltis 18:430 



Hyalodidymae 



10:426, 11 : 557, 18:431 



Conidia hyaline, i-septate, oblong to fusoid 



I. Pycnidia separate 



1. Pycnidia astomous or variously perforate, not cleft 



a. Conidia muticate Leptothyrella 10:426 



b. Conidia cuspidate at apex, falcate Kabatia 18:433 



2. Pycnidia cleft lengthwise, elongate Fioriella 18: 432 



II. Pycnidia in a stroma, rimose Pseudomelasmia 18: 434 



