616 



<)n llmllus o!' Pdi'inclid xd-sdiil ix. Rhode Island (Farlow), Penn- 

 .-ylvania ( Eckfeldt). 



Tin* measurements arc from Farlmv's specimens and are smaller 

 (lor cells and asci) than those of Dr. Winter. 



H. Magnolias (Cke.) 



Dothidea Magnolia, Cke. Grev. VII, p. 50. 



Ifonioxti'xia Magnolicz, Sacc. 83-!!. 5342. 

 1{ \sicc. Rav. F. Am. 386. 



Bpiphyllous, scattered, black, elliptical or angular, flattened-con- 

 vcx. rugose. Asci clavate-cylindrical. Sporidia cylindrical, obtuse, 

 slightly curved, triseptate, hyaline, 20 x 5 //. 



On leaves of Magnolia, Darien, Ga. (Ravenel). 



We have not been able to find any fruit in the spec, in Ravenel's 

 F. A in.. and can only copy the description from Grevillea. 



H. rngodisca, (Cke. & Hark.) 



Dothidea rugodisca, Cke. & Hark. Grev. IX, p. 87. 

 Homostegia rugodisca, Sacc. Syll. 5343. 



Hypophyllous, spots irregular, brown. Cells angular, flattened, 

 rugose, crowded. Asci subclavate. Sporidia rounded above, attenu- 

 ated below, triseptate, hyaline, 16-17 x 4 //. 



On leaves of Arbutus Menziesii, California (Harkness). 



H. Kelseyi, E. & E. Proc. Acad. Nat. Sci. Phil. June, 1890, 

 p! 248. (Plate 40) 



Perithecia gregarious or cespitose, or united 3-6 together in an 

 imperfect stroma, often transversely seriate through cracks in the bark, 

 ovate, |-| mm. diam., with a conical or cylindric-conical, stout osti- 

 olum which is sometimes imperfectly radiate-sulcate. Asci cylindrical. 

 150-190 x 8-9 //, with paraphyses. Sporidia uniseriate, hyaline, ob- 

 long-cylindrical, 3-septate, straight, obtuse, 15-20x7-9 p. 



On dead stems of Ribes rotundifolia? Helena, Montana. 



This species, on account of the scanty stroma and often nearly 

 free perithecia, seems allied to the Cucurbit ariece, or Meloyrammece, 

 but in M>me cases the perithecia are entirely buried in the stroma, a? 

 in genuine Dothideacece. 



H. gangrana, (Fr.) 



Sphceria gangrtzna, Fr. in Duby Bot. Gall. II, p. 695. 

 Phyllachora gangrezna, Fckl. Symb. p. 217. 

 Sphcerella gangrazna, Karst. Myc. Fenn. II, p. 185. 

 Homostegia gangrczna, Winter, Die Pilze, II, p. 917. 

 tfxsicc. Fckl. F. Rh. 2261. Rav. Car. II, No. 59. Desm. PI. Cr. Ed. I, 1267. 



Stroii iata gregarious or scattered, irregularly elongated, 3-5 mm. 



