548 



orally subseriate, (1 mm. diam.), white inside, surrounded by the epi- 

 dermis. Perithecia scarcely distinct (subconfluent), rather obtuse, 

 opake. Asci clavate, 8-spored. Sporidia elliptical, continuous, hyaline, 

 20 x 8 fi. 



On bark of Aralia spinosa, Carolina (Curtis). 



B. Vibtirni, Cke. Grev. 1. c. 



Stromata erumpent, gregarious, very small (|-| mm.), corticolous, 

 depressed-pulvinate, dark brown, surface tuberculose, white inside. 

 Perithecia 6-10, subimmersed, convex above, perforated. Asci cla- 

 vate. Sporidia narrow-elliptical, continuous, turning yellow, granular, 

 18-21x8 ju. 



On branches of Viburnum opulus. United States. 



Closely allied to B. Aralice, of which it may be a variety. 



B. flypericorum, Cke. Grev. XIII, p. 102. 



Subelliptical, flattish, black. Perithecia small, connate, white 

 inside, closely embraced by the ruptured epidermis. Asci clavate, 

 8-spored. Sporidia narrow-elliptical, continuous, hyaline, about 20 x 

 5 (i (immature). 



On stems of Hypericum prolifer 'um, United States. 



B. stomatica, Schw. Grev. 1. c. 



Widely effused, emergent, staining the wood black. Perithecia 

 semiimmersed, rather large. Ostiola large and prominent, cylindrical, 

 obtuse. Asci clavate, 8-spored. Sporidia elliptical, continuous, brown, 

 12-13x5 //. 



On rotten wood, Indiana. 



Differs from the others in its brown sporidia. 



We have seen no specc. of the last six species, and take the 

 descriptions from Grevillea. 



B. Arctostaphyli, (Plowr.) 



Sphczria Arctostaphyli, Plowr. Grev. VII, p. 73. 

 Botryosphczria Arctostaphyli, Sacc. Syll. 1764, Cke. Syn. 1405. 



Perithecia superficial, depressed-globose, black, roughish, gre- 

 garious, |-1 mm. Ostiola obscurely papilliform. Asci clavate-pyri- 

 form, 70x15-20 p.. Sporidia continuous, ovoid, sometimes a little 

 curved, 15-18x45 /z, hyaline. Spermogonial perithecia about the 

 same as the ascigerous ones. Spermatia oblong, hyaline, 5-7 x2 jul. 



On bleached wood of Arctostaphylus, California (Harkness). 



Our specc. from Dr. Harkness show only sperrnogonia. The 

 stroma seems to be entirely wanting. 



