STILBACEAE 



227 



Helicosporae 



4:729, 11:654 

 Conidia spirally convolute, hyaline or smoky 



Everhartia 4:729 



A. Conidiophores obsolete; conidia hyaline 



B. Conidiophores ramose, moniliform; conidia 



smoky 



Troposporella 11:654 



Family 88. STILBACEAE 



Sterile hyphae creeping, scanty; fertile hyphae aggregated into clavate or 

 cylindric fascicles or synnemata, typically bearing the conidia at the top, often in 

 a head, more rarely along the sides, pale, bright-colored, or dark to black; conidia 

 various. 



Hyalostilbae 



Hyphae and conidia pale or bright-colored, not dark or black 



Amerosporae 



4:461, 10:681, 11:640, 14:1107, 16:1082, 18:630, 22:1437 

 Conidia 1-celled, hyaline to bright-colored, globose to elliptic or oblong 



A. Conidial part distinctly capitate or at least ter- 

 minal 



1. Conidia catenate 



a. Synnema with conidia above; conidia without 



mucus 



(1) Conidiophores verticillate-ramose 



(2) Conidiophores not verticillate-ramose 



b. Synnema with conidia below; conidia with 



mucus 



2. Conidia not catenate 



a. Head spiny with radiating spicules 



(1) Spicules conic, granulate 



(2) Spicules with many curved branches at 



middle 



b. Head not spiny 



(1) Conidiophores conidium-like, septate; 



synnema monocephalous 



(2) Conidiophores normal 

 (a) Conidia covered with mucus 



X. Synnema monocephalous 

 (x) Conidiophores dendroid-verticillate 

 m. Conidiophores with obpiriform 



sterigmata 

 n, Conidiophores without distinct sterig- 

 mata 

 (y) Conidiophores not dendroid-verticil- 

 late 

 y. Synnema polycephalous 

 (x) Capitula on erect branches 

 (y) Capitula on spreading subulate 

 branches 



Coremium 4:581; 57 

 Coremiella H 556 



Microspatha 10:687 



Actiniceps 4:579 

 Heterocephalum 18:642 



Atractiella 4:578 



Pirobasidium 18:638 

 Dendrostilbella 18:635 

 Stilbum 4:564 

 Corallodendrum 4:576 

 Tilachlidium 4:576 



