Ellis and Everhart : New Species of Fungi 55 



Rhabdospora pachyspora E. & E. 



On dead stems of Erigeron ? Morrison, Colorado, May, 1899 



(Bethel, no. 473). 



Perithecia scattered, minute, conic-globose, semierumpent : 

 sporules arcuate, 3-4-nucleate, hyaline, subobtuse, 16-25 x 3.5—4//. 



Dothiorella rhoina E. & E. 



On dead limbs of Rhus Toxicodendron, Morrison, Colorado, 

 May, 1899 (Bethel, no. 475 partly). 



Perithecia bursting through the epidermis, 4-6 together stro- 

 matically connected or scattered singly, raising and finally pierc- 

 ing the epidermis or sometimes on the gregariously crowded and 

 slightly connected at base, . 3 5—. 5 mm. in diameter, hemispheric- glo- 

 bose, with a papilliform ostiolum : sporules elliptical or ovate -ellip- 

 tical, subolivaceous, 4-7 x 3-4 /a 



Exosporium pallidum E. & E. occurs on the same limbs. 



Sphaeropsis hederae E. & E. 



of Hedera Helix. Nuttallburg, West Va., J 



iSqqCL. W 



Perithecia suberumpent, thickly scattered, rather flattened 

 above, about 0.25 mm. in diameter with an obscurely papilliform or 

 short conical ostiolum : sporules oblong-elliptical, 20-25 x 8-10//. 



Sphaeropsis helicis Cke. & Mass. is said to have a long ex- 



serted ostiolum and spores 12 x 8/1. 



Sphaeropsis dircae E. & E. 



On dead stems of Dirca palustris, near Ottawa, Canada, 

 April, 1899 (Macoun, no. 705). 



Perithecia gregarious, minute, raising the epidermis into little 

 pustules perforated at the summit by the minute ostiolum : spor- 

 ules oblong-elliptical, 15-18 x 7-8 t u. 



Diplodia hypoxyloides E. & E. 



On dead twigs of Menispennum Canadense, Emma, Mo., Nov. 

 '899 (Rev. C. H. Demetrie, no. 720). 



Perithecia erumpent, surrounded by the ruptured epidermis, de- 

 pressed-hemispherical, convex above, about 1 mm. diameter whitish 

 > n the center at first, soon slaty-black, white inside and soon hol- 

 low, of carbonaceo-coriaceous texture, resembling the perithecia of 



