192 



THE FUNGI WHICH CAUSE PLANT DISEASE 



minute cells as in the Erysiphacese; spores ovate, guttulate, hyaline, 

 10 X 8 /i; conidia of various kinds, formed from the bases of the 

 perithecia, (a) multicellular macroconidia, (b) unicellular micro- 

 conidia, (c) gemmse. 



A. brasiliense Noack is reported on grape ^" in Brazil. 



Various species also occur on numerous woody and herbaceous 

 plants which are infected with aphids or upon which their "honey 

 dew" falls. 



Antennaria Link differs but little from Apiosporium. 



A. pithyophila Nees. occurs on leaves of fir; A. elaeophila Mont. 



1 M*»^>.. 



Fig. 139. — ^Apiosporium Balicinum. After Anderson. 



on the Olive; A. setosa Zimm. on coffee; A. footi B. & D. com- 

 monly on green house plants; A. piniphilum Fcl. on fir. 



Capnodium Mont. (p. 190) 



This is easily distinguished from genera of similar habit by its 

 muriform spores. 



C. quercinum Pers. occurs on oak; C. taxi S. & R. on Taxus; 

 C. foedum Sacc. on Oleander; C. coflEeae Del. on coffee; C. tiUae 



