DEMATIACEAE 



215 



(a) Joints of conidiophore more or less in- 



flated and clavoid 



(b) Joints not inflated 



X, Conidiophores erect; conidia long-cate- 

 nate 



y. Conidiophores somewhat decumbent; 

 conidia 2-3 in chains, often solitary 

 b. Conidia not catenate 



(1) Conidiophores beautifully flexuous or toru- 



lose 



(2) Conidiophores not flexuous or torulose 



(a) Conidiophores inflated, repeatedly ra- 



mose; conidia rhomboid 



(b) Conidiophores with somewhat globose 



denticulate joints, bearing 1-x conidia, 

 simple 



(c) Conidiophores not inflated, simple or 



sparsely branched 

 X. Conidia verrucose 

 y. Conidia not verrucose 

 (x) Conidia acrogenous 

 (y) Conidia acropleurogenous 

 m. Conidiophores simple, short, fascicu- 

 late, mostly erect 

 n. Conidiophores more or less ramose, 

 longer, somewhat decumbent 



Cladotrichum 4:370; 56 



Diplococcium 4:374 

 Cladosporium 4:350 



Polythrincium 4:350; 56 



Pseudobeltrania 18:578 



Gonyella 



Asperisporium 

 Fusicladium 4:345 



Scolecotrichum 4:347 

 Cladosporium 4:350 



Phragmosporae 



4:380, 10:606, 11:621, 14:1082, 16:1060, 18:581, 22:1379 

 Conidia 2-x-celled, dark, rarely hyaline, ovoid to cylindric or vermicular 



Micronemeae 

 Hyphae very sliort or little different from the conidia 



Polydesmus 4:401 

 Septonema 4:397; 56 



A. Conidia catenate 



1. Conidia connected by isthmi 



2. Conidia without isthmi 



B. Conidia not catenate 



1. Conidia 1-3-rostellate at apex 



a. Conidiophores dichotomous and broadened at 



apex Urosporium 4:397 



b. Conidiophores not dichotomous or broadened Ceratophorum 4:395 



2. Conidia muticate 



a. Conidia ovoid to cylindric, straight 



(1) Saprogenous Clasterosporium 4:382 



(2) Phyllogenous Stigmina 4:394 



b. Conidia fusoid-falcate Fusariella 4:395; 56 



Macronemeae 



Hyphae long or distinctly different from the conidia 



A. Conidia endogenous 



1. Conidia catenate, dark 



2. Conidia not catenate, hyaline 



Sporoschisma 4:486; 56 

 Excioconis 



