195 



C. stricta, (Pers.) 



Sphceria stricta, Pers. Syn. p. 59. 

 Ceratostoma strictum, Fckl. Symb. p. 127. 

 Ceratostomella stricta, Sacc. Syll. 1555. 



Porithecia crowded or seriate-conglomerate, scarcely emergent, 

 sphaeroid, smooth, rigid, fragile, glabrous, black. Ostiolum straight, 

 rigid, erect, rather obtuse, twice longer than the perithecium. Asci 

 attenuated into a slender pedicel, cylindric-elavate, 30-35 x 5 /j. (p. sp.), 

 8-spored. Sporidia biseriate, elongated, slightly curved, continuous, 

 6-8 x 1 -2 //, 2-4-nucleate, hyaline. 



On rotten wood, Carolina and Pennsylvania, common. 



C. echinella, E. & E. (in Herb.) 



Gregarious. Perithecia about \ mm. diam., globose, covered, but 

 not deeply, membranaceo-carbonaceous. Ostiola exserted, 1 mm. long, 

 rough and glandular-pubescent below, becoming glabrous, more or less 

 bent or undulate, slightly thickened at the tips. Asci clavate, 25-30 

 x4-5 p. Sporidia crowded-biseriate, cylindrical, hyaline, curved, 3^ 

 xl/i. 



On the inner surface of cast-off maple bark, New Jersey, and Ohio 

 (Morgan, 928). 



C. albocoronata, (Ell.) 



Ceratostoma albocoronatum, BU, Am. Nat. 1883, p. 318. 

 Ceratostomella albocoronata, Sacc. Syll. 5997. 



Perithecia conical, minute, vomiting forth the ascigerous nucleus 

 in the form of a white globule. Asci cylindrical, 35x7 p.. Sporidia 

 uniseriate or partly biseriate, elliptical, hyaline, 1-2-nucleate, 7J-9| x 

 3 3J /i. Accompanied by obovate, brown, 2-3-septate conidia borne 

 singly on the apices of erect, brown, simple hyphae thickly scattered 

 over the matrix. 



On rotten wood, Newfield, N. J. 



. rostrata, (Fr.) 



Sphceria rostrata, Fr. S. M. II, p. 473. 

 Ceratostoma roslralum, Fckl. Symb. p. 127. 

 Ceratostomella rostrata, Sacc. Syll. 1564. 



Perithecia gregarious or scattered, immersed or free, globose, 

 rugose, bald, black, variable in size from 300-700 /z diam., with a very 

 long, unequal, rather obtuse, longitudinally striate, 4-cornered. mostly 

 curved, rigid beak. Asci clavate-cylindrical, sessile, 8-spored, 40-45 x 

 8-9 p. Sporidia oblong or elliptical, continuous or obscurely uni- 

 septate, hyaline, 9-12x4 //. 



