578 



A. picaceura, (C. & E.) 



vria picacea, C. & E. Grev. VII, p. 9. 

 Anthostoma picacea, C. & E. Cke. Syn. 4207. 

 Anthoslomella? picacea, Sacc. Syll. 1093. 

 Exsicc. Ell. N. A. F. 183. 



Perithecia subgregarious, globose, deeply buried in the wood, 

 which is blackened in patches on the surface and pierced by the 

 minute, erumpent ostiola. Asci cylindi'ical, p. sp. 50-55 x 5-6 fx, par- 

 aphysate. Sporidia uniseriate or partly biseriate, oblong-cylindrical, 

 brown, with a single nucleus, obtuse, 8-10 x 3-3| /z (10x4 //, Cke.). 



On decorticated limbs of Vaccinium and Acer, Newfield, N. J. 



A. gigasporum, Cke. «& Hark. Grev. XIII, p. 18. 



Scattered, subimmersed, covered by a raised, globose tubercle 

 formed from the substance of the matrix. Perithecia globose, large 

 (lJ-2 mm.), black-punctate, with an obtuse ■ ostiolum. Asci ample, 

 saccate, 8-spored. Sporidia elongated-elliptical, slightly nan'owed at 

 the ends, continuous, dark brown, 65-80 x 25-30 fi. 



On decorticated twigs, California (Harkness). 



In habit resembling Sphmria cubicularis, Pr., but with much 

 larger sporidia, and, as in that species, the perithecia fall out, leaving 

 cavities not unlike a large Stictis. 



A. pulviniceps, Pk. (in Uteris). 



Perithecia 8-12 in a pustule, sunk to the wood, covered by the 

 bark. Ostiola erumpent, crowded, prominent, black, forming a cushion- 

 shaped mass. Asci clavate. Sporidia crowded, subelliptical or broadly 

 fusiform, multinucleate, slightly colored, 10-15 // long. 



On dead stems of Sambucus Canadensis, New York (Peck). 



A. flavoviride, Ell. & flolw. Geol. Survey of Minn. Bull. No. 3, 

 1886, p. 32. 



Stroma effused, thin, 1-3 x |-1 inches, more or less, covered at 

 first with a thin coat of greenish-yellow, short, matted hyphse, bearing 

 small (1-1| pt), subglobose, subhyaline conidia, but finally bare and 

 black. Perithecia membranaceous, black, globose, {\ mm.), sunk in 

 the scarcely altered substance of the wood, contracted above into short, 

 narrow necks with their black, papilliform ostiola erumpent. Asci 

 (p. sp.) 75x6-7 //, or with the slender base 120 [i long. Sporidia 

 uniseriate, narrow-elliptical, continuous, nearly hyaline at first, becom- 

 ing dark, 10-12 x4-4| p.. The stroma is limited by a dark, circum- 

 scribing line penetrating the wood. 



On decaying poplar wood, Vermilion Lake, Minn. (Holway). 



