606 THE FUNGI WHICH CAUSE PLANT DISEASE 



C. peonis Pass. 



Spots large, chestnut brown, hyphae short, simple; spores 

 various, long, 1 to 2-septate. On peony. 



C. epiphylliun Mart, is on oak, sycamore, poplar, etc.; 



C. juglandis Cke. on walnut; 



C. scribnerianum Cav. on beech; 



C. hypophyllum Fcl. on elm; 



C. tuberum Cke. on sweet potato tubers; 



C. scabies Cke. on tomato and cucumber; 



C. ozycocci Sh. on cranberry. 



C. zese Pk. 



Sterile hyphse hyaline, sub-cutaneous, erumpent; spores elliptic- 

 oblong, 4 X 20 /J, continuous or 1 to 3-septate. 



In immature com grains. 



C. brunneo-atrum McA. is on orange leaves and young shoots 

 in Australia; 



C. javanicum Wak. on sugar cane in Java causing root molds. 



Polythrincium Kunze & Schmidt (p. 602) 



Conidiophores erect, fasciculate, regularly flexuose or toru- 

 lose, black, simple; conidia acrogenous, obo- 

 void. 



Monotypic. Inpart=Phyllachara. See 

 p. 220. 



P. trifolii Kze. on clover=Phyllachora tri- 

 folii. See p. 220. 



Fusicladium Bonardin (p. 602) 



' f Conidiophores short, erect, straight, spar- 



FiG. 408.— P. trifolii. ingly septate, subfasciculate, olivaceous; co- 

 ter o a. njdia ovoid or subclavate, continuous or 

 1-septate, acrogenous, solitary or paired. 



In part=Venturia and Phyllachora.^^"' ^^ 



Over forty species, several pathogenic. 



F. fraxim Aderh. on Ash.=V. fraxini. See p. 255. 



F. saliciperdum (All. & Pub.) Land, on Salix=V. chlorospora. 

 See p. 255. 



F. cerasi (Rab.) Sacc. on cherry, peach, =V. cerasi. See p. 255. 



