566 THE FUNGI WHICH CAUSE PLANT DISEASE 



Hyphse elongate and distinct from the 

 conidia 

 Conidiophores simple or little branched, 

 apically swollen 



Conidia solitary 3. Hartigiellese, p. 570. 



Conidia in heads 



Conidia not in chains 4. Cephalospories, p. 570. 



Conidia in chains 5. AspergiUes, p. 572. 



Conidiophores much-branched, conidia 

 not in heads 

 Conidia borne irregularly on simple 

 or branched but not inflated or 



verticillate conidiophores 6. Botrytidese, p. 574. 



Conidia borne on verticillately 



branched conidiophores 7. Verticillice, p. 583. 



Conidiophores with inflated nodes upon 



which clusters of conidia are borne 8. Gonatobotrytidese. 



Chromosporiese (p. 565) 

 Hyphae short or obsolete, comdia not in chains. 



Ket to Genera of Chromosporiese 



Conidia solitary, at least not capitate 

 Saprophytic 

 H3rphse almost none 



Conidia separate 1. Chromosporium. 



Conidia joined in twos or threes, 



not catenulate 2. Selenotila. 



Hyphae very short, branched, septate 3. Coccospora. 



Entomogenous 4. Massospora. 



Phytogenous 

 In fungi 



Conidia ovoid, smooth 5. Myceliophthora, p. 567. 



Conidia globose, verrucose 6. Coccosporella. 



In leaves, hyphse vermiform-tortuous 7. Ophiocladium, p. 567. 

 Conidia capitate; hyphae lacking; biophil- 



o"s 8. Glomerularia. 



