757 



1747. Sphceria ruhicunda, Schw. — Spots determinate, of a uni- 

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

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

 the red-tinted epidermis. 



On stems of Solanum and Chenopodium, Carolina and Pennsyl- 

 vania (Schw.). Compare Leptosphce.ria ruhicunda, on p. 360. 



1748. Sphceria lilacina, Schw. — Covered, spots indeterminate, 

 always lilac-colored. Pei-ithecia loosely scattered under the spots, 

 very minute, black, here and there subprominent. 



On stems of Asclepias Syriacus. 



1749. Sphceria tngeticola, 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. Sphmria 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. Sphceria meloplaca, Schw. — Gregarious, covered at fiisl 

 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, subdeterminate, efiused spot an inch in diameter, 

 not surrounding the stem. Somewhat resembles Phoma nebulosa. 



On branches of Myrrhis Canadensis. 



1756. Sphceria 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. Sphceria Pastinacce, Schw. — Perithecia scattered but 



