171 

 R. ovalis, (Ell.) (Plate 20) 



Sphceria ovalis, Ell. Bull. Torr. Bot. Club. VIII, p. 125. 

 Rosellinia ovalis, Sacc. Syll. 989. 

 Rxsicc. EH- N. A. F. 896. 



Perithecia gregarious or subcespitose, ovate, rough, 250-300 n 

 diam., with an obtusely papilliform ostiolurn. Asei narrow, cylindrical, 

 75-85 (p. sp. 60-65) x 6 //. Sporidia uniseriate, continuous, brown, va- 

 riable in size and shape, from short-elliptical to oblong, 8-12x5-7 /* 

 ( mostly 8-9 x 5-6 //). 



On "sage brush 1 ', (Artemisia?) Utah (S. J. Harkness). 



Closely allied to R. pulveracea. differing principally in its peri- 

 thecia. 



R. mycopliila, (Fr.) 



Sph&ria mycophila, Fr. S. M. II. p. 462. 

 Rosellinia mycophila, Sacc. Syll. 



Perithecia scattered, erumpent-superficial. black, fragile, subshin- 

 ing, smooth, hemispherical or irregular in shape, ostiolum papilliform, 

 linally deciduous, leaving the perithecia simply perforated. Asci cyl- 

 indrical. Sporidia uniseriate, elliptical, brown. Sometimes several 

 perithecia are confluent. 



On decaying Poly port. Pennsylvania and Carolina. 

 R. deerata, C. & E. 



Sphceria deerata, C. & E. Grev. V, p. 93. 

 Rosellinia deerata, Sacc. Syll. 961. 



Perithecia few, small, scattered, erumpent, globose, black. Asci 

 cylindrical. Sporidia uniseriate. elliptical, brown, 12x7 JJL. Some of 

 the perithecia contain stylospores. 



On dead wood of Juniperus Virrjhuana, Xewfiekl. X. J. 



All the specimens of this species in our Herb, are stylosporous 

 (Shceropsis), and we suspect the specimens from which it was described 

 were R. abietina. Fckl. with denuded perithecia. 



R. unibrinella, (B. & ('.) 



SphcEria umbrinella, B. & C. Grev. IV, p, 152. 

 Rosellinia umbtiiiella, Sacc. Syll. 981. 



"Perithecia umber colored, with a black, papilliform ostiolum. 

 Asci linear. Sporidia uniseriate, brown, elliptical, bimicleate." 

 On Eupatorium coronopifolium^ South Carolina. 



