574 



lilack, crowded in the tuhercles, surrounded, wlien fresli, witli ;i uliitc 

 stroma. ()^^tiola polygonal, piondnent, at lenutli inegulai', dccjilv 

 uiul»ilicate. Ver)- varialtle in shape as it is found on the wood or on 

 the Imrk. Tuliereles 4-G nun. higli, in elongated series of several 

 inches ill extent. Spoi'idia (Cke. I. c.) 8 /i long, allantoid. 



On dead steins of Scmibiicun Cduadensis, Bethlclieui, Pa. (Hchw.). 



Allied to Sphmria ,scabi'om. 



I), microste^a, E. & E. (in ileih.) 



Stroniata gregarious, small, f-1 mm. diam., crumi»ent, sujieificiiii. 

 l)laek, rough, suhglohose. Perithecia 1-") in a stroma, small, hhick. 

 Ostiola prominent, sul (pyramidal, and more or less stellate-cleft. Asci 

 (p. sp.) 35-40x0-7 //. Sporidia sulihiseriate, allantoid, yellowish, 

 slightly curved, 1 0-1 2 x 1 1-2 u. 



On hark, California (Harkness). Sent as Sp/iceria suhmorifortnh. 

 Plowr. 



I). Macoiiiiii, E. & E. Proc. Acad. Nat. Sci. Phil. July, 1 890. ).. 224. 



."Stroma discoid, gray, 3-4 mm. across, and al)Out 1 mm. thick, suli- 

 orl)icular or suhelliptical, seated on the surface of the inner bark, and 

 loosely enilii'aced liy the upturned, ruptured epidermis, circumscrihed 

 l>y a distinct, l»lack line, which penetrates the hark and stains the sur- 

 face of the sui)jacent wood, Itut does not ])enetrate it. Perithecia 

 numerous, 30-50, in a single layer, ovate-glohose, \-\ nun. diam., con- 

 tracted al)Ovc into short necks terminating in a small, indistinctly 

 radiate-cleft, l>lack ostiolum. which is in a slight depression of the 

 stroma. Asci (p. sj).) 20-30x3 // or, including the thirad-like hase. 

 50-60 [t long. 8])oridia hiseriate al)ove, allantoid, slightly curved. 

 4-6 X |-1 ji. Substance of the stroma dirty white inside. 



On maple baik {Acer riihnim)'-.. Agassiz, British Columbia 

 (Macoun). 



D. Hochel.'isa', E. & E. Proc. Acad. Nat. Sci. Phil. July, 1890, p. 

 224. (Plate 84) 



Kxsicc. KU. & Evrlit. N. A. F. 2d Ser. 2.52K. 



Stroma orl)icular or elongated, 2-3 mm. long and 1-2 mm. wide, 

 often more («• less conllueiit, ]»ulvinate-verrucose, with the margin 

 al)rupt or slanting off at the nds, with a faint cireumscriliing black 

 line, which does not penetrate deeply into the wood, dull I)lack outside, 

 dirty white within. Perithecia crowded in the stroma, subglobose. 

 about ^ nun. diam., with thick, black, coriaceous walls. Ostiola conic- 



