754 



epidermis, at length denuded, scattered, but thickly covering the 

 stems. Ostiola obtuse, subprominent. Perithecia black, obovate, rugose, 

 minute, bare or surrounded at base by the epidermis. When young, 

 brown, subpellucid, surrounded by a whitish-pulverulent mass which 

 finally disappears. 



On dead stems of Rubus villosus. 



Subtectce. 



1689. Sphceria sphcerocephala, Schw. Syn. Car. 166. Peri- 

 thecia innate and rising with the yellowish epidermis to which they 

 are closely attached, suberumpent, of medium size, black; when empty, 

 cinereous and obsoletely cellulose. Ostiola formed of many crowded 

 tubercles, one of which exudes pellucid globules as in Sphmronema. 



On branches of Hydrangea, Carolina. 



1700. Sphceria vacciniicol a, Schw. Scattered, covered. Peri- 

 thecia depressed-globose, subrugose, empty or filled with dark-colored 

 spermatic gelatine, visible through minute cracks in the epidermis, 

 scarcely papillate, black, very minute. 



On small branches of Vaccinium. 



1701. Sphmria Kalmiarum, Schw. - Scattered, very black; 

 when immature, swollen and brown, rarely exuding short, simple, 

 white cirrhi. Perithecia hemispherical, innate. 



On fallen leaves of Kalmia and Rhododendron. 



1703. Sphceria samarce* Schw. Scattered; at first covered by 

 the epidermis which is soon stellately ruptured. Perithecia obtuse, 

 subastomous, punctate-rugose, dark brown, nucleus white; sometimes 

 extruding a small, straight, dark brown cirrhus. 



On samarse of Fraxinus. Apparently different from Pleospora 

 samarce, Fckl. 



1704. Sphceria Jasmini, Schw. Scattered, minute, brown, 

 white at the apex, covered by the raised epidermis. Perithecia ellip- 

 tical or subrotund, at length collapsing with the epidermis still adherent, 

 the collapsed disk subrugose. 



On shoots of Jasminus (cult.). 



Caidincolce. 



1731. Sphceria tecta, Schw. Permanently covered, scattered 

 extensively over the slightly blackened stems. Perithecia depressed- 

 elliptical, crowned with a globose, deciduous papilla. 



On large, herbaceous stems. 



