DEMATIEAE. 353 



Subsect. 2. Macronemeae. Sacc. 

 Hyphae evident and distinct from the conidia. 



Tribe 4. Periconieae. Sacc. 

 Conidia brown, capitate, not cateniilate. 



Tribe 5. Arihrineae. Sacc. 



Conidia brown, not catenulato, produced in wborls along 

 tbe hyphae. 



Tribe 6. Trichospmeae, Sacc. 



Conidia brown, not catenulate, produced vaguely in a 

 scattered matter. 



Tribe 7. Monotosporeae. Sacc. 



Conidia brown, not catenulate, borne singly at tbe tips of 

 erect hypbae or conidiopbores. 



Tribe 8. Haplographieae. Sacc. 

 Conidia brown, catenulate. 



§ Conidia colourless or almost so, borne by short specialised 

 conidiophores situated at the base of the long, sterile, erect, 

 brown hyphae. 



Tribe 9. MyxotricJieae. Sacc. 



Conidia aggregated to form a head ; (at first enclosed in 

 a vesicle ?). 



§§ Conidia colourless or nea,rly so ; hyphae brown, not 



differentiated into fertile and sterile, i.e. all alike in 

 structure. 



VOL. III. 2 A 



