547 



Stroma variable, erumpent, often rudimentary, orbicular, about 1 

 mm. diam., or by confluence larger and variable in shape. Perithelia 

 sunk in the stroma, finally emergent and often quite superficial, stro- 

 matically connected below, botryoidally aggregated or subcespitose, 

 white inside. Asci inflated-clavate, paraphysate, 8-spored, 75-100 x 

 18-25 fi, Sporidia imperfectly biseriate, inequilaterally elliptical, 

 hyaline, continuous, 18-38 x 8-15 p. 



On dead limbs of various deciduous trees and shrubs, throughout 

 the U. S. and Canada. Common and variable. See paper in Proc. 

 Acad. Nat. Sci. Phil., referred to above. The forms with scattered 

 perithecia (var. simplex) have been removed to Physalospora. 



Repeated observation convinces us that it would be simply ab- 

 surd to separate the various forms above quoted as distinct species. 

 Without knowing the host, it would be impossible to separate them. 

 Sphoeria Hibisci, Schw., and S. Cratmgi, Schw., which in the 

 paper above referred to were interrogatively included as synonyms, 

 prove on examination to be different. Figs 1 and 2, PI. 36, represent 

 the two extreme forms. 



B. minor, E. & E. Journ, Mycol. IV, p. 77. 



Perithecia minute (150-170 /*), white inside, mostly in small 

 erumpent groups of 2-6 joined in an imperfectly developed stroma. 

 Asci 75 x 20 /x. Sporidia crowded-biseriate, subelliptical (narrower at 

 the ends), 14-16x6-7 //, yellowish-hyaline. Differs from the larger 

 forms included under Botryosphceria. 



On Sesbania, Louisiana (Langlois). 



B. abnipta, B. & C. Grev. XIII, p. 101. 



Stromata erumpent, closely surrounded by the fissured epidermis, 

 subdiscoid. Perithecia globose, semiimmersed, black, at length con- 

 fluent, truncate-obtuse, abrupt, white within. Asci clavate, 8-spored. 

 Sporidia elliptic-fusoid, subattenuated at each end, obtuse, continuous, 

 hyaline, becoming yellow, granular within, 22-24 x 10 ti. 



On Cyrilla, Carolina. 



B. melathroa, B. & C. Grev. 1. c. 



Stroma longitudinally effused, innate, erumpent. Perithecia 

 ovate, crowded, subdistinct, black, rounded at the apex, small. Asci 

 clavate-cylindrical. Sporidia elliptical, continuous, 20 x 8 /i, hyaline. 



On Crataegus cor data, Pennsylvania. 



B. Araliie, Curtis, Grev. XIII, p. 101. 



Stromata innate-erumpent, corticolous, subpulvinatc, black, gen- 



