180 



PHOMALES 



y. Stroma sessile, without peridium 

 (x) Basidia ramose 

 (y) Basidia simple 

 m. Basidia fasciculate 

 n. Basidia not fasciculate 

 (m) Ostiole present 

 (n) Ostiole none; hypostroma usually 

 present 

 J. Stroma not valsoid or dothideoid 



(1) Stroma discoid, pulvinate, globoid, or 



botryose 



(a) Pycnidia hairy; conidia cirrhose 



(b) Pycnidia glabrous 

 X. Conidia catenate 



y. Conidia not. catenate 



(x) Conidia ciliate 



(y) Conidia not ciliate 

 m. Basidia ramose 

 n. Basidia filiform 

 o. Basidia short or obsolete 



(2) Stroma lineate or effuse, sometimes basal 



only 



(a) Stroma lineate 



x. Conidia connate in fours 

 y. Conidia not in fours 



(b) Stroma eflfuse or merely basal 



X. Stroma effuse; pycnidia immersed 

 (x) Stroma fungicole, on Cyttaria 

 (y) Stroma not fungicole 

 y. Stroma basal; pycnidia exserted 

 (x) Pycnidia single in stroma columns; 



basidia papillate; conidia globoid 

 (y) Pycnidia not in stroma columns; 

 basidia none; conidia histogenic, 

 allantoid 

 2. Stroma superficial 



a. Stroma setose, papillate with ostioles 



b. Stroma glabrous 



(1) Stroma on animal hairs; basidia very short 



(2) Stroma phytogenous 



(a) Stroma suberose, large, hypoxyloid; 



conidia not falcate 



(b) Stroma subcarbonous; conidia falcate 



Pleurostromella 

 Scleromeris 

 Phomachora 

 Podoplaconema 



Lasiostroma 



Sirodothis 



Placonema 18:293 



Endothiella 22:965, H 313 

 Dothiorella 3:235, H 235; 49 

 Placosphaeria 3:244, H 244 



Gamosporella 10:238, H 300 

 Hypodermina H 264 



Anthracoderma 10:238, H 299 

 Epheliopsis 22:951 



Sphaerophoma 



Botryophoma 

 Chaetocytostroma 

 Trichophila 10:423, H 256 



Phellostroma H 267 

 Ascochytopsis 22:951, H 305 



Phaeosporae 



3:291, 10:251, 11:511, 14:919, 16:905, 18:302, 22:966 



Conidia 1-celled, dark, globose, ovoid, elliptic to fusoid, rarely botuliform 



A. Pycnidia separate, sometimes cespitose, without 

 subicle or stroma 

 1. Pycnidia innate or finally more or less erumpent 

 a. Pycnidia with ostiole 



(1) Pycnidia rostrate or cylindric 

 (a) Pycnidia rostrate Naemosphaera 10:259, H 333 



