494 THE FUNGI WHICH CAUSE PLANT DISEASE 



M. reniformis (V. & R.) Car. is reported on grapes in Algiers, 

 Italy and Russia. 



Aposphseria Berkley (p. 481) 



Pycnidia globose, carbonous, with a papillate ostiole, erum- 

 pent or superficial; conidia elongate to globose; conidiophores 

 very short or absent. 



One hundred species are recognized. 



An undetermined species was found by Stevens ^' in New York 

 and New Jersey in 1892, causing diseased spots on strawberry 

 leaves. 



Dendrophoma Saccardo (p. 481) 



Pycnidia superficial or subepidermal and erum- 

 pent, carbonous; ostiole papillate; conidia elongate; 

 conidiophores branched. 



A genus of some fifty species, chiefly sapro- 

 phytes. 



D. marconii Cav. occurs on hemp stems; D. con- Fig. 339.— Den- 

 vallarise Cav. on leaves of Convallaria majalis; nidUopXores 

 D. valsispora Penz on living lemon leaves. ^?^<^ conidia. 



^m» • - • T-1 1 Alter Aiies' 



Cicinnobolus Ehrenberg is frequently met as a cher. 



parasite on the mycelium of the Erysiphales. 



Macrodendrophoma salicicola on Salix =Physalospora gregaria. 



See p. 252. 



Sphseronema Fries (p. 482) 



Pycnidia superficial or not, pyriform, cylindric or globose, 

 rostrum long; conidia ovate or elongate. 



Some seventy-five species, chiefly saprophytes, have been de- 

 scribed. 



S. phacidioides Desm. on clover =Pseudopeziza trifolii See 

 p. 148. 

 S. fimbriatum (E. & H.) Sacc."- ^2 

 Pycnidia globose, 100-200 n, surrounded by septate, hyaline 



