708 



uated, often curved, lying in various directions on the matrix, ends 

 acute; lips narrow, slightly swollen, edges somewhat remote. Asci 

 oblong, 8-spored, subsessile, 60-75x20-22 IJL. Paraphyses branched 

 above. Sporidia inordinate, subelliptical, hyaline, muriform, 20-30 x 

 12-15 fi. 



On bark of Gary a alba, New Paltz Landing, N. Y. (Gerard), on 

 dry, exposed wood, Ohio (Morgan), on cast-off bark of Acer and of 

 Pyrus Malus, and on decorticated oak limbs, Newfield, N. J; com- 

 mon, but not abundant. 



H. gloniopsis, (Gerard). 



Hysterium hyalosporum , Ger. in Peck's 3ist Rep. p. 49. 

 Hysterium gloniopsis, Ger. Bull. Torr. Bot. Club, VI, p. 78. 

 Hysterium hyalinum, C. & P. in Cooke's Disc, of the U. S. p. 33. 

 Gloniella kyalina, Sacc. Syll. 5719. 

 Gloniopsis Gerardiana, Sacc. Syll. 5747. 



Perithecia erumpent-superficial, lying in the direction of the fibers 

 of the wood, frequently parallel, linear, narrow, rounded at each end, 

 1-2 mm. long, straight, faintly striate ; lips acute, nearly closed. Asci 

 cylindric-clavate, paraphysate, 8-spored, subsessile, 57-60 x 12 p.. Spo- 

 ridia biseriate, clavate-oblong, 3-septate, with one or two of the broader 

 cells often divided by a longitudinal septum, 12-15 (exceptionally 20) 

 x 5-6 fj>, hyaline. 



On dry, hard wood of deciduous trees, New York State (Peck & 

 Fairman), Louisiana (Langlois), on old, dry oak wood, New Jersey 

 (Ellis). 



The above diagnosis is from the original specimens of Hysterium 

 gloniopsis, determined by Gerard. The specc. of H. hyalinum, 

 C. & P., determined by Cooke, do not differ appreciably. In the 

 diagnosis of If. hyalinum, in Disc. U. S. the sporidia are said to be 

 26-28 x 6-8 a, but we can only make them as stated above. In a 

 spec, of Hysterium hyalosporum, Ger., from Gerard, the sporidia, 

 when mature, become brown, though they remain for a long time 

 hyaline, but in all other respects the spec, agrees so well with the 

 characters given above that it cannot well be separated. In the 

 original description of Hysterium hyalinum, C. & P., nothing is said 

 of any longitudinal septa in the sporidia, but in the mature sporidia 

 they are always present. 



H. praelongum. (Schw.) 



Hysterium prczlongum, Schw. in Herb. Schw. & Syn. N. Am. 2074 (not Duby), 

 Hysterium lineolatum, Cke. Grev. XI, p. -107. 



Hysterium Verbasci, Schw. in Herb. Schw. & Syn. N. Am. 2093. 

 Gloniopsis Verbasci, Rehm Rev. Duby, Hyst. p. u. 

 Exsicc. Rav. F. Am. 69. Ell. N. A. F. 1321. 



