171 

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



Sph&ria ovalis, EH. Bull. Torr. Bot. Club. VIII, p. 125. 

 Rosellinia ovalis, Sacc. Syll. 989. 

 Exsicc. EH. N. A. F. 896. 



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

 diam., with an obtusely papilliform ostiolum. Asci narrow, cylindrical, 

 75-85 (p. sp. 60-65) x6//. Sporidia uniseriate, continuous, brown, va- 

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

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



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



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

 thecia. 



R. mycophila, (Fr.) 



Sphceria mycophila, Fr. S. M. II, p. 462. 

 Rosellinia mycophila, Sacc. Syll. 958. 



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

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

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

 indrical. Sporidia uniseriate, elliptical, brown. Sometimes several 

 perithecia are confluent. 



On decaying Polypori, 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, 12 x 7 ti. Some of 

 the perithecia contain stylospores. 



On dead wood of Juniperus Virginiana, Newfield, N. J. 



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

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

 were H. abietina, Fckl. with denuded perithecia. 



R. umbrinella, (B. & C.) 



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

 Rosellinia umbrinella, Sacc. Syll. 981. 



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

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

 On Eupatorium coronopifolium, South Carolina. 



