533 



On dead limbs of Fagusferruginea, New York State (fide Peck, 

 who finds the sporidia ovate or oblong-elliptical, hyaline, 18-24 ju long). 



** Sporidia cylindrical, continuous or nucleate. {Eucryptospora). 



Cr. suffiisa, (Fr.) 



Sphceria suffusa, Fr. S. M. II, p. 399. 

 Cryptospora suffusa, Fr. Summa Veg. Sc. p. 412. 

 Exsicc. Fckl. F. Rh. 620, 1997. Kze. F. Sel. 142. Rab. F. E- 730, 1130, 2022. Rehm Asc. 

 46. Thum. M.U. 171 Sydow, M. March. 168. EH. & Evrht. N. A. F. 2d Ser. 1578. 



Stromata scattered, raising the epidermis into flattish pustules, but 

 not discoloring it, 1-2J mm. broad. Perithecia 4-12, subcircinate, 

 depressed-globose or angular from crowding, collapsing when dry, 

 lying in the unaltered inner bark, with long, cylindrical, converging, 

 decumbent necks, united at their ends in a small, black, erumpent disk, 

 or sometimes a part or all of them remaining isolated. Asci oblong, 

 sessile, 8-spored, 70-100 x 22-30 //. Sporidia fasciculate or inter- 

 woven, cylindrical, obtuse, hyaline, 50-65 x 3 \-A [i. 



On dead alders, New York (Peck), New Jersey (Berk, in Grew 

 IV, p. 101). 



Cr. Betulse, Tul. Sel. Carp. II, p. 149, tab. XVII, figs. 13-27. 



Exsicc. EU. & Evrht. N. A. F. 2d Ser. 1792. Roum. F. Gall. 3944. 



Perithecia 6-10, globose, small, \ mm. or a little over, circinate, 

 immersed in the surface of the unaltered inner bark, which is raised 

 into a slight pustule over tliem, necks convergent, decumbent, erum- 

 pent in rather prominent, punctiform, black ostiola, in the scarcely 

 emergent, small, black disk just visible through short, transverse 

 cracks in the epidermis. Asci cylindric-clavate, attenuated below, p. 

 sp. 55-60 x 15-18 ft, aparaphysate. Sporidia fasciculate, cylindrical, 

 subarcuate, obtuse, nucleate, hyaline, 30-40 x 3|-4 /i. Conidial stage 

 Cryptosporium JVeesii, Cda. and C. betulinum Sacc. Conidia 50 x 

 4|-5 pt, shaped like the ascospores. 



On dead birch limbs, Plainfield, N. J. (Meschutt). 



The N. A. F. specc. do not show the conidia. 



Cr. Tilise, TuL Sel. Carp. II, p. 151. 



Pustules irregularly scattered, orbicular, small, slightly prominent, 

 cortical, the erumpent disk about 1 mm. broad. Perithecia 4-6, cir- 

 cinate, subglobose, necks short, decumbent, with subhemispherical 

 ostiola. Asci obovate, 65-80 x 13-16 /*, obtuse above, subacute below, 

 8-spored. Sporidia fasciculate, straight, cylindrical, or sometimes sub- 

 clavate, 30-35 x5-6J/*. 



