218 



MONILIALES 



(1) Hyphae of two kinds, longer sterile, 



shorter fertile 



(2) Hyphae of one kind 



(a) Conidia subreniform, bearing globose 



conidioles 



(b) Conidia without conidioles 



X. Conidia cruciate-divided, vcrrucose 

 y. Conidia not cruciate, muriform, smooth 

 (x) Conidia rcniform or semicircular 

 m. Conidia inversely reniform, enclosed 

 in a clear semi-gelatinous vesicle 

 n. Conidia semi-circular, half surround- 

 ing a globose cell 

 (y) Conidia otherwise 

 m. Conidiophores decumbent 

 n. Conidiophores erect or ascending 

 (m) Conidia globose, pleurogenous 

 r. Conidia around the apex of tlic 



hyphae 

 s. Conidia conglobate around the 

 base of the hyphae 

 (n) Conidia ovoid to oblong, typically 

 acrogenous 



Septosporium 4:543 



Xenosporium 18:612 

 Tetracoccosporis 18:617 



Coleodictys 

 Xenosporella 

 Stemphylium 4:519 



Coccosporium 4:542 

 Trichaegum 4:542 

 Macrosporium 4:523; 56 



Scolecosporae 



4:431, 14:1099, 22:1432 



Conidia long-filiform or vermicular 



A. Conidia hooked at apex; sphagnicole 



B. Conidia not hooked; not sphagnicole 



Casaresia 

 Cercospora 4:431; 56 



Staurosporae 



4:552, 11:639, 14:1107, 16:1181, 18:625, 22:1411 



Conidia forked or stellate, usually dark, septate or continuous 



A. Conidia of two forms, large lobate x-celled dark, 



small fusoid hyaline 



B. Conidia alike 



1. Conidiophores present 



a. Conidia 2-4-radiate 



b. Conidia anchor-like, rostrate at apex 



2. Conidiophores lacking 



a. Conidia 3-x-forked or united at base; sterile 



hyphae present; xylogenous 



b. Conidia horseshoe-shaped, aggregate; sterile 



hyphae lacking; phyllogenous 



Desmidiospora 10:568 



Triposporium 4:554; 57 

 Teratosperma 22:1411 



Ceratosporium 4:552 

 Hirundinaria 4:553 



Helicosporae 



4:557, 10:680, 11:638, 14:1107, 16:1081, 18:625, 22:1435 

 Conidia spiral or convolute, cylindric, dark or hyaline, typically septate 



A. Conidia relatively thick, not hygroscopic 



B. Conidia relatively thin, hygroscopic 



Helicoma 11:638 

 Helicosporium 4:557; 57 



