757 



1747. Sphceria rubicunda, Schw. Spots determinate, of a uni- 

 form red color, covered. Perithecia minute, black, papillate (the 

 papillae seriately prominent), seated on the inner bark and covered by 

 the red-tinted epidermis. 



On stems of Solanum and Che?iopodium, Carolina and Pennsyl- 

 vania (Schw.). Compare Leptosphmria rubicunda, on p. 360. 



1748. Sphceria lilaeina, Schw. Covered, spots indeterminate, 

 always lilac-colored. Perithecia loosely scattered under the spots, 

 very minute, black, here and there subprominent. 



On stems of Asclepias Syriacus. 



1749. Sphmria tageticola, Schw. Covered, at length nearly 

 free, scattered on a cinerascent spot in the epidermis. Perithecia 

 minute, often 2-3 confluent-subseriate, distinctly raising the epidermis'. 

 Ostiola cylindrical, becoming globose, very distinctly prominent. 



On stems of Tagetes (cult.). 



1752. Sphceria evulsa, Schw. Scattered, half a line (in diam.), 

 at first entirely covered by the fibers with which it is easily torn away, 

 being only slightly attached. Perithecia depressed, subconical from a 

 rather broad base, often collapsed below. Ostiolum minute, perforated. 



On stems of climbing herbaceous plants. 



1753. Sphmria meloplaca, Schw. Gregarious, covered at first 

 by the thin epidermis, at length denuded, immersed in a black or dark 

 brown crust which it finally penetrates, the numerous irregularly 

 globose, nearly free, black, rugose, astomous, empty perithecia coming 

 in sight. Sometimes they are subostiolate-impressed at the vertex. 



On stems of the larger herbs. 



1754. Sphceria Myrrhis, Schw. Perithecia scattered, minute, 

 globose-conical, dark brown, very thin, glabrous, subcollapsing, con- 

 fluent with the ostiola, erumpent-superficial, punctiform, seated on a 

 dark cinereous, thin, subde terminate, effused spot an inch in diameter, 

 not surrounding the stem. Somewhat resembles Phoma nebulosa. 



On branches of Myrrhis Canadensis. 



1756. Sphmria sulcigena, Schw. Seriately scattered in the 

 furrowed surface of the culm, very minute, at first covered by the 

 thin epidermis, tinged with black, subimmersed, subrotund, flattened, 

 crowned with a deciduous papilla. 



On old culms of Zizania, Philadelphia, Pa. 



1757. Sphmria Pastinacm, Schw. Perithecia scattered but 



