606 FUNGI IMPERFECTi: THE IMPERFECT FUNGI 



Spores with apical bristles. Robillardia 



Pycnidia not in definite spots. 



Spores without appendages; parasites or saprophytes on higher 



plants, Diplodina 



Spores with slimy or hair-like appendages at each end; parasitic 

 upon Uredinales. Darluca 



Pycnidia with a beak. Rhynchophoma 



Pycnidia with hairs or bristles. Vermiculariella 



Pycnidia embedded in a radiate subiculum. Actinonema 



Conidia colored. Phaeodidymae 



Pycnidia free from one another, without stroma. 



Pycnidia subepidermal or subcortical, then emerging. 

 Pycnidia glabrous. 



Spores without outer slime layer. Diplodia^ 



Spores with external slime coat. Macrodiplodia^ 



Pycnidia with hairs or bristles. Chaetodiplodia^ 



Pycnidia from the beginning superficial, on wood. 



Diplodiella^ 

 Pycnidia crowded, with stroma. Botryodiplodia^ 



Conidia 3- or more-celled by transverse septa only. 



Phragmosporae 

 Conidia hyaline. Hyalophragmiae 



Conidia without appendages. 



Pycnidia more or less globose or depressed globose, mostly remaining 



covered, except the ostiolar area (practically a Hen- 

 dersonia with hyaline spores). 



Stagonospora 

 Pycnidia vertically elongated, emerging in groups. 



Mastomyces 

 Conidia with a bristle-like appendage at the apex. 



Kellertnania 

 Conidia colored. Phaeophragmiae 



Without stroma (sometimes a stromatic crust in Dilophospora). 



Conidia without appendages, the terminal cells of the conidia hyaline in 



some species. Hendersonia 



Conidia with appendages. 



Appendages a single fine thread at each end of the spore; no stroma. 



Cryptostictis 

 Appendages a tuft of several, fine, branched threads at each end; 

 pycnidia sometimes with a stromatic crust; parasitic 

 on grass leaves. Dilophospora 



Pycnidia embedded in a stroma; conidia not appendaged. 



Hendersonula 

 Conidia several-celled by transverse and some longitudinal septa; colored. 



Phaeodictyae 

 Without stroma; breaking out through the bark. Camarosporium 

 Without stroma; superficial on wood. Cytosporium 



With pulvinate stroma. Dichomera 



* These distinctions are very artificial, for under different cultural conditions any 

 of these may develop into almost any other form. Also when younger they may 

 represent Diplodina or Sphaeropsis stages. 



