186 



PHOMALES 



(y) Basidia simple to obsolete 

 m. Pycnidia maculicole 

 n. Pycnidia not maculicole 

 (m) Pycnidia complete, rami-caulicole 

 r. Pycnidia globose or depressed, 



membranous 

 s. Pycnidia conoid, coriaceous 

 (n) Pycnidia incomplete or opening 

 widely 

 r. Pycnidia incomplete, folicole; 

 spores acicular 

 (r) Spores hyaline 

 (s) Spores dark 

 s. Pycnidia opening widely, expos- 

 ing the gelatinous spore-mass, 

 ramicole; spores filiform 

 2. Pycnidia superficial 



a. Pycnidia rostrate or terete 



b. Pycnidia not rostrate 



(1) Pycnidia hairy 



(2) Pycnidia glabrous 



(a) Conidia 3-x on a basidium 



(b) Conidia single 



X. Ostiole present; pycnidia not maculicole 

 y. Ostiole none; pycnidia maculicole 



B. Pycnidia with a subicle 



1. Conidia hyaline; pycnidia not maculicole 



2. Conidia dark; pycnidia maculicole 



C. Pycnidia with a stroma 



1. Pycnidia distinct in the stroma 



a. Conidia setose-penicillate at each end 



b. Conidia muticate 



2. Pycnidia reduced to locules 



a. Stroma dothideoid 



b. Stroma phyllachoroid 



Septoria 3:474; 50 



Rhabdospora 3:578, H 104; 50 

 Micropera 3:604 



Phleospora 3:577 

 Phaeophleospora 



Gelatinosporis 3:596 



Cornularia 3:598 



Ciferria 



Gamospora 10:402, H 402 



Leptochlamys 

 Pseudoseptoria 22:1135 



Chaetophiophoma 22:1136 

 Phaeoseptoria 22:1121 



Dilophospora 3:600, H 270 

 Cytosporina 3:601, H 284; 50 



Hemidothis H 231 

 Linochora H 249 



Family 81. ZYTHIACEAE 



(Nectrioidaceae) 



Pycnidia globoid, rarely conic or lentiform, fleshy, rarely waxy or gelatinous, 

 innate, erumpent or superficial, ostiolate or astomous, separate or with a subicle or 

 stroma, typically bright-colored; conidia various, typically on simple or ramose 

 basidia. 



This family differs from the Phomaceae only in the bright color and fleshy tex- 

 ture of the pycnidia. It resembles the subfamily Patellinae of the Discellaceae in 

 these respects, but the pycnidium is perithecium-like and not cupulate or hysterioid. 



Hyalosporae 



3:613, 10:404, 11:552, 14:988, 16:983, 18:407, 22:1140 



Conidia 1-celled, hyaline, globose or ovoid to oblong 



A. Pycnidia separate 



1. Pycnidia innate or more or less erumpent 



