1859.] CHAPTERS ON FUNGI. 373 



6. Myxogastres. Whole plant at first gelatinous. Peridium 

 containing at length a dusty mass of threads and spores. 



III. CONIOMYCETES. 



A. Growing on dead or dying plants. 



* Subcutaneous. 



Suborder 1. Spharonemei. Perithecium present or rudimen- 

 tary. 



2. Melanconiei. Perithecium manifestly none. 



3. Phragmotrichiacei. Spores arranged in threads. 



* * Superficial. 



4. Torulacei. Spores more or less moniliform, formed by the 

 rupture of the fertile threads. 



B. Parasitic on living plants. 



5. Puccinim. Spores mostly oblong, septate. 



6. Caomacei. Spores subglobose^ rarely vesicular ; simple^ or 

 if formed from the articulations of the fertile threads^ deciduous. 



IV. Hyphomycetes. 



A. Fertile threads compacted, sometimes replaced by cells. 



Suborder 1. Isariacei. Stem or stroma compound. Spores 

 dry, volatile. 



2. Stilbacei. Stem or stroma compound. Mass of spores 

 moist, diffluent. * 



B. Fertile cells perfectly free, or slightly anastomosing. 



3. Dematiei. Fertile threads dark, carbonized. Spores often 

 compound and cellular. 



4. Mucedines. Fertile threads very distinct, mostly white or 

 coloured. Spores mostly simple, scattered or collected in heads. 



5. Sepedoniei. Fertile threads scarcely distinct from the my- 

 celium. Spores very abundant. 



V. Physomycetes. 



Suborder 1. Mucorini. Fertile cells bladder-shaped, scattered 

 on the threads, which are not compacted so as to form a distinct 

 hymenium. Sporidia indefinite. 



