598 



Ph. Ambrosise, (B. & €.) 



Dothidea Ambrosia, B. & C. Grev. IV, p. loj. 

 Phyllachora A mbrosiay Sacc. Syll. 5127. 



Stroma convex, sliining. Asci linear, shorter than the slendei' 

 paraphyses. Sporidia uniseriate, elliptical, hyaline. 



On leaves of Ambrosia elatior, Carolina, and on A. artemisioB' 

 folia,. Alabama (Beaumont). 



D. Ambrosice, Schw. Syn. N. Am. 1935 (sec. Cke. Gvev. XIII, 

 p. 43), is without fruit and not a Phyllachora. 



Ph. Lesped^zse, (Schw.) 



Spktxria Lespedeia, Schw. SyQ. N. Am. 1488. 

 Phyllachora Lespedezcs, Cke. Grev. XIII, p. 63. . 

 Exsicc. Ell. N. A. P. 487. 



Stromata gregarious or snbconfluent, conic-convex, black and 

 -hining, about 1 mm. diam., epiphyllous, seated on indefinite, yellowish 

 spots. Ascigerous cells few (1-4), small, pale. Asci? Sporidia (sec< 

 Cke. in Grev. XIII, p. 63) elliptical, continuous, hyaline, 20x10 fi. 



On leaves of various species of Lespedeza. Not uncommon, but 

 nidstly sterile. 



Ph. Beaiimontii, (B. & 0.) Grev. XIII, p. 63.' 



Epiphyllous. Stroma hemispheric-con ve.\, opake, black, con- 

 tracted at base. Asci clavate. Sporidia inordinate, elliptical, con- 

 tinuous, hyaline, 8-10 x4 /./. 



Oil leaves of Gerasus, Alabama. 



Ph. picea, (B. & C.) 



DMhtdea picea, B. & C. Grev. IV, p. I05. 

 Phyllachora picea, Sacc. Syll. 5129, Cke. Syn. 1073'. 



Forming little orbicular, papillose patches. Asci short, clavate. 

 Sporidia hyaline, narrow, cymbseform. 

 On twigs of Vitis cestivalis. 



Ph. tennis, (B. & C.) 



Dothidea tenuis, B. & C. N. Pac. Expl. Exp. No. l6a. 

 Phyllachora tenuis, Sacc. Syll. 5114, Cke. Syn. 1077. 



Pitch-black. Stroma subpenetrating, thin, minutely granulose 

 from the slightly prominent cells. Sporidia hyaline, oblong-clavate. 

 On leaves of Bauhinia, Nicaragua (Wright). 



Ph. incliisa, (B. & C.) 



Dothidea inclusa, B. & C. N. Pac. Expl. Exp. No. 164. 

 Phyllachora inclusa, Sacc. Syll. 5116, Cke. Syn. 1067. 



