DEMATIACEAE 



211 



(m) Conidiophores simple or spar- 

 ingly ramose 

 r. Chains of conidia terminal, soli- 

 tary 

 (r) Conidia connected by cylin- 



dric isthmi 

 (s) Conidia without isthmi 

 s. Chains of conidia lateral 

 (n) Conidiophores more or less 

 dendroid-ramose 

 y. Conidial chains ramose; sterile hyphae 

 erect and mixed with the fertile ones 

 b. Conidia not catenate 

 (1) Conidia capitate 



(a) Saprogenous 



X. Conidiophores simple, with or without 

 basidia 

 (x) Conidiophores with basidia 

 m. Basidia terminal, umbellate 

 n. Basidia lateral, irregularly disposed 

 (y) Conidiophores without basidia 

 m. Conidia globose 



n. Conidia fusoid, sometimes subhyaline 

 y. Conidiophores ramose at the apex 

 (x) Conidiophores scopiform at apex; 



conidia oblong, 1-3 at each tip 

 (y) Conidiophores with 2-3-furcate spine- 

 bearing branches; conidia globose 

 z. Conidiophores ramose much below the 

 apex 

 (x) Conidiophores furcate or dichot- 



omous 

 m. Conidiophores 1-furcate 

 n. Conidiophores repeatedly dichot- 

 omous 

 (y) Conidiophores verticillately or irreg- 

 ularly ramose; heads mucose 

 m. Conidiophores verticillately ramose 

 n. Conidiophores with short more or 

 less opposite branches 



(b) Biogenous 



X. Conidia globose; conidiophores swollen 



above, bearing 3-4 basidia 

 y. Conidia ovoid to oblong 

 (x) Conidiophores swollen above, with- 

 out basidia; conidia globoid 

 (y) Conidiophores ramose above; conidia 

 oblong 

 (2) Conidia verticillate-pleurogenous 



(a) Hyphae dark, nodose-inflated and den- 



ticulate; conidia ovoid 



(b) Hyphae hyaline, not nodose-inflated and 



denticulate, but with thick septa 



Prophytroma 4:309 

 Catenularia 4:303 

 Dematium 4:308 



Hormodendrum 4:310; 55 



Hormiactella 4:311 



Stachybotrys 4:269; 55 

 Periconia 4:270 



Trichobotrys 18:571 

 Acrotheca 4:276 



Acrodesmis 



Cephalotrichum 4:275 



Synsporium 4:278 

 Dicyma 18:570 



Leptographium 

 Phialophora 



Haplobasidium 10:578 



Stachybotryella 18:570 

 Periconiella 4:275 



Gonatobotryum 4:278; 55 



