DEMATIACEAE 



213 



B. Conidia hyaline or subhyaline 



J. Conidia acrogenous on short heteromorphic 

 basidia on the lower part or at the base of 

 erect hyphae 



a. Conidia capitate-glomerate; sterile hyphae 



much branched below 



b. Conidia not capitate 



(1) Conidia loosely catenate 



(2) Conidia not catenate 



(a) Erumpent; conidia 1-setose above, fu- 



soid, curved 



(b) Superficial; conidia not setose 

 X. Sterile hyphae ramose 



(x) Hyphae irregularly ramose; basidia 



verticillate 

 (y) Hyphae repeatedly dichotomous; 



basidia terete, basal 

 (z) Hyphae reticulate-anastomosing; 

 basidia clavate, basal 

 y. Sterile hyphae simple 

 (x) Conidia globose 

 m. Biogenous; setae marginal 

 n. Saprogenous; setae not marginal 

 (y) Conidia bacillar 

 m. Sterile hyphae tortuose 

 n. Sterile hyphae circinate 

 2. Conidia on normal hyphae 



a. Conidia endogenous, catenate 



(1) Sterile hyphae present; conidiophores ver- 



ticillate-ramose, end branches with ob- 

 long cysts 



(2) Sterile hyphae obsolete; conidiophores 



simple 



(a) Conidia in simple chains 



(b) Conidia conglutinate into a long curl 



b. Conidia exogenous 



(1) Conidia capitate 



(a) Conidiophores verticillately ramose 



(b) Conidiophores pencillately ramose; co- 



nidia mucose 



(c) Conidiophores simple, with basidia at 



tip 

 X. Basidia verticillate 

 y. Basidia irregular 



(2) Conidia not capitate 



(a) Conidiophores ramose 

 X. Conidiophores erect 

 (x) Conidiophores verticillately ramose 

 (y) Conidiophores more or less irregu- 

 larly ramose 

 m. Conidia 1-ciliate at each end, falcate 

 n. Conidia not ciliate 

 (m) Conidia globose to ovoid 



Myxotrichella 4:317, 14:57 

 Stirochaete 4:316 



Ellisiella 4:315 



Costantinella 16:1054 

 Circinotrichum 4:314 

 Dictyochaeta 



Peziotrichum 11:614 

 Botryotrichum 4:313 



Sarcopodium 4:312:55 

 Helicotrichum 4:313 



Cystodendrum 



Chalara 4:333 

 Cirromyces 18:627 



Stachylidium 4:331:56 

 Scopularia 4:330 



Fuckelina 4:330 

 Pimina 16:1054 



Verticicladium 4:327 



Eriomene 4:326 



Mesobotrys 4:324; 55 



