22 ERYSIBACEAE— PERISPORIACEAE 



II. Perithccium with several asci 

 i. Appendages present 

 a. Appendages simple, thread-like Erysibe i: 15 



1). Appendages branched or otherwise modified 



(1) Appendages dichotomously branched 



Microsphaera 1:10 



(2) Appendages modified but not branched 



(a) Appendages stiff and bristle-like 



x. Appendages numerous, not swollen at base 



Pleochaete 1 : 9 

 y. Appendages few, swollen at base 



Phyllactinia 1 : 5 



(b) Appendages coiled at tip Uncinula 1:6 



2. Appendages absent ; perithecium surrounded by the mycelium 



Erysibella 1 : 23 



Dictyosporae 

 Spores usually hyaline, muriform 

 A single genus Saccardia 1:24 



Family 16. PERISPORIACEAE 



1:24. 9:371. 11 :2S3, 14:462, 16:398, 17:524 

 Mycelium superficial, dark, filamentous, sometimes lacking, rarely forming a firm 

 stroma ; conidia or pyenidia rarely present ; perithecium without a mouth, or open- 

 ing irregularly, usually globose, membranous or coriaceous, rarely carbonous, appen- 

 dages usually lacking; asci mostly numerous, clustered, more or less cylindric, mostly 

 8-spored, paraphyses regularly lacking ; spores various. 



Kyalosporae 



Spores i-celled, hyaline or yellowish 



I. Perithecia bright-colored, yellow or reddish, rarely white 



1. Asci 8-spored 



a. Perithecia with setae, or hairs 



(1) With long rigid setae Chaetothece 11:254 



(2) With many hairs, immersed in a dense subicle 



Cryptothecium 14:465 



b. Perithecia glabrous 



(1) Spores with an unequal samariform appendage 



Samarospora 11:254 



(2) Spores not appendaged 



(a) Spores verrucose Anixiopsis 14: 464 



(b) Spores smooth 



x. Conidiophores branched Allescheria 14: 464 



y. Conidiophores simple, swollen at tip 



Eurotium 1 : 25 



(Kickxella 9: 372) 



2. Asci many-spored Pisom.yxa 1: 29 



II. Perithecia dark or black, spores hyaline 

 1. Asci 2-8-spored 



