176 



PHOMALES 



The four families reflect more or less accurately the structure of the corre- 

 sponding perfect forms. The Phomaceae correspond chiefly to Sphaeriaceae and 

 Dothideaceae, the Zythiaceae to Hypocreaceae, the Leptostromaceae to Micro- 

 thyriales, and the Discellaceae to the Phacidiales and xeric Pezizales. The Patel- 

 linae, referred to Zythiaceae by Saccardo on the basis of color and texture, are 

 primarily forms of Discomycetes and hence belong in the Discellaceae. The latter 

 appear to pass gradually and completely into the Meliinconiaceae. 



Family 80. PHOMACEAE 



(Sphaerioidaceae) 

 Pycnidia globoid, conic or lentiform, membranous, carbonous or sub-coriaceous, 

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

 or stroma, which is variously loculate, typically dark; conidia various, borne on 

 simple or ramose basidia, or arising from the pycnidial wall. 



Hyalosporae 



3:1, 10:100, 11:472, 14:844, 16:825, 18:220, 22:823 

 Conidia 1-celled, hyaline, globose, ovoid, ellipsoid or botuliform 



A. Pycnidia separate, sometimes cespitose, without 

 subicle or stroma 

 1. Pycnidia innate, or finally more or less erum- 

 pent 



a. Pycnidia with a clypeus 



(1) Pycnidia with ostiole 



(a) Conidia ciliate 



(b) Conidia not ciliate 



X. Basidia ramose; conidia acro-pleuro- 



genous 

 y. Basidia simple 

 (x) Conidia acrogenous 

 m. Basidia bacillar, fasciculate 

 n. Basidia papillate, not fasciculate 

 (y) Conidia pleurogenous 



(2) Pycnidia without ostiole; basidia ramose 



b. Pycnidia without a clypeus 



(1) Pycnidia rostrate or cylindric 



(a) Pycnidia rostrate 

 X. Pycnidia hairy 



y. Pycnidia glabrous 

 (x) Basidia ramose; conidia usually ex- 

 pelled in a ball 

 m. Spores allantoid 

 n. Spores ovoid to ellipsoid 

 (y) Basidia simple 

 (z) Basidia none; conidia histogenic 



(b) Pycnidia vertical, oblong to cylindric 

 X. Basidia ramose; conidia pleurogenous 

 y. Basidia simple 



(x) Conidia acrogenous 



(y) Conidia acro-pleurogenous 



(2) Pycnidia not rostrate or cylindric 

 (a) Pycnidia hairy or setose 



X. Setae stellately ramose 



Ciliochora 



Plectophomopsis 



Scleromeris 

 Phomachora 

 Clypeochorella 

 Plectosira 



Chaetosphaeronema 



Pleuronaema H 34 

 Sphaeronema 3:185; 49 

 Ceratophoma H 35 

 Pseudophoma H 5 



Pleurophomella H 335 



Chondropodiella 

 Glutinium 11:500, H 337 



Staurochaeta 3:218, H 30 



