THE FUNGI WHICH CAUSE PLANT DISEASE 595 



Conidia solitary, acrogenous 7. Monotosporeae, p. 600. 



Conidia in chains 8. Haplographies, p. 600. 



Conidia hyaline 

 Conidia acrogenous on short heteromor- 

 phic conidiophores at the lower 

 part or bases of erect hyphse 



Conidia single or catenulate 9. Sarcapodiese. 



Conidia in heads 10. Myxotrichelleae. 



Conidia on hyphse of the same kind 



Conidia in heads 11. Stachylidieae. 



Conidia in chains 12. Chalariese. 



Conidiosporieae (p. 594) 

 Conidia not catenulate, conidiophores short. 



Key to Genera of Coniosporiese 



Conidia spherical, eUiptic or discoid 1. Coniosporium, p. 595. 



Conidia elongate 2. Fusella. 



Coniosporium Link 



Hyphae very much reduced; conidia dark, QdOO 



globose, ovoid or discoid, borne on short hya- fipi 



line conidiophores. no. 398.-Como- 



About eighty-five species, chiefly saprophytes, b p o r i u m. After 



C. onobrychidis Mag. occurs on sainfoin; ^""^ °' 



C. filicinum Rost. on Pteris and other ferns. 



TorulesB (p. 594) 

 Conidia in chains. 



Key to Genera of Tonilese 



Conidia of two sorts, macroconidia catenul- 

 ate 



Microconidia glomerate 1- Heterobotrys. 



Microconidia internal, catenulate 2. Thielaviopsis, p. 5G6. 



Conidia all alike 

 Hyphse dark 



Chains breaking up readily 



Conidia globose or ovoid 3. Torula, p. 597. 



