610 



D. episphseria, Pk. 30th Rep. p. 64. 



Stromata small, slightly prominent, scattered or subconfluent, 

 often irregular, carbonaceous, black. Nuclei numerous, Avhite within. 

 Sporidia crowded or biseriate, lanceolate or subfusiform, colorless, 

 15-18 fi long. 



On old Diatrype stigma, New York State. 



D. Cercidis, Cke. Grev. XIII, p. 66. 



Erumpent, orbicular, hemispherical, at length depressed in the 

 center, black, cells few. Asci' clavate. Sporidia biseriate, elliptic- 

 lanceolate, continuous, hyaline, 30 x 10 jjl. 



On branches of Cercis Canadensis, Carolina. 



Dothidea moricola, C. & E. Grev. V, p. 95, and D. Tamaricis, 

 Cke. Grev. XI, p. 108, are only forms of BotryosphcBrla fuliginosa, 

 (M. & N.). In the spec, of D. Tamaricis, in Rav. P. Am. 668, the 

 sporidia are mostly 1 5-20 x 6-9 //, but in the same perithecium are 

 asci with sporidia 30 x 15 fi. 



D. Pringlei, Pk. Bot. Gaz. VII, p. 57. 



A uerswaldia Pringlei, Sacc. Sylf . 5249. 



Stromata amphigenous, orbicular or oblong, 2 mm. to 1 cm. diam. 

 or by confluence two or more cm., prominent on both sides, flat-discoid, 

 black and solid, penetrating the matrix deeply, covered by the thin 

 epidermis which finally becomes loosened and is then white. Ascig- 

 erous, cells few (2-6) in a stroma, ovate, deeply seated, about \ mm. 

 diam., narrowed above into the tuberculiform-erumpent, perforated 

 ostiola, which are finally deciduous, leaving a round hole penetrating 

 the stroma as if eaten out by some insect. Asci cylindrical, subsessile 

 paraphysate, 8-spored, 180-210x15-18 [i. Sporidia uniseriate, ob- 

 long-elliptical, rounded at the ends, hyaline, becoming yellow-brown, 

 25-36 X 12-14 fi, continuous. The surface of the stroma, except 

 where roughened liy the prominent, tuberculiform ostiola, is smooth. 



On leaves of Yucca macrocarpa, Arizona (Pringle), San Diego, 

 Cal. (Palmer). 



** Stroma pidvinate or tuhercidiform; ramulicolous {JSudothidea). 



D. Sambnci, (Pers.) 



Sphtzria Sdmbuci, Pers. Syu. p. 14, 

 Sphcsria nutans, Tode F. Meckl. II, p. 27. 

 Dothidea Frangules, Fckl. Symb. p. 222. 

 Dothidea Sambuci, Fr. S. M. II, p. 551. 

 Exsicc. Fckl. F, Rh. 1007, 1816.— Kze. F. Sel. 158.— Rab. F. E. 2952.-/riium. F. Austr. 764. 

 Roum. F. G. 1471-— Sydow, M. March. 861. 



