577 

 ANTHOSTOMA, Nitschke. 



Pyr. Germ. p. no. 



Stroma more or less effused (diatrypoid), or pulvinate, conical or 

 hemispherical (valsoid), often only partially developed. Perithecia 

 sunk in the stroma or in the matrix, mostly with elongated necks 

 which, in the pulvinate stroma, generally converge and are erumpeot 

 together as in Valsa. Asci cylindrical or clavate, with paraphyscr- 

 more or less distinct. Sporidia oblong- or elliptical continuous, brown. 

 * Stroma effused Eii anthostoma). 



A. melanotes, (B. & Br.) 



Sphceria ?nelanotes, B. & Br. Brit. Fungi. No. 634. tab. 9, fig. 6. 

 Anthostoma melanotes, Sacc. Mich. I, p. 326. 



Stroma effused, entirely immersed in the wood, which is blackened 

 on the surface forming elongated spots often confluent; finally blacken- 

 ing the wood more deeply, and with a black, circumscribing line. Peri- 

 thecia small, depressed-globose, entirely buried in the wood, monos- 

 tichous, loosely scattered. Ostiola exserted, minute, entire, conical or 

 hemispherical, shining, at length perforated. Asci cylindrical, short- 

 stipitate, 8-spored, paraphysate, 70x7 ;i. Sporidia obliquely uniseriafe. 

 obtusely-fusiform, straight or rarely subinequilateral, becoming dark 

 brown, 12-14x5-6/^. 



On decorticated oak limbs, Newfield, N J. 



A. grandinea, (B. & Rav.) 



Diatrype grandinea, E. & Rav. Grev. IV, p. 95. 

 Anthostoma grandinea, Sacc. Syll. n 14. 

 Camarops grandinea, Cke. Syn. 1469. 

 Exsicc. Fll. N. A. F. 494. Rav. Car. IV, 90. 



Stroma effused, thin, crustaceous, overspreading the surface of the 

 inner bark, and throwing off the epidermis for 6 inches or more in ex- 

 tent, brownish at first with a rufous tint, finally darker, less than | mm. 

 thick and easily overlooked, being of about the same color as the bark, 

 surface minutely papillose-roughened by the slightly prominent, sub- 

 hemispherical or obtusely-conical ostiola. Perithecia covered above 

 by the stroma, small, less than \ mm. diam., depressed-globose, thin- 

 walled, white inside, narrowed directly into the ostiola, which arc 

 sometimes faintly radiate salcate. Asci clavate, 50-60 x 10 //(p. sp. 

 40 x 10 /jl), short-stipitate, with imperfectly developed paraph) 

 Sporidia subbiseriate above, short-elliptical or sobglobose, 7-10 x 

 5_8 t u, becoming nearly black, 1-2-nucleate, but not septate. 



On bark of dead Quercus coccinea, Carolina and New Jersey 

 73 



