404 



olina by Dr. Ravenel. We have not seen the pycnidial stage [Hen- 

 dersonia Desmazieri), 



M. atroinquinans is given as a synonym of M. Platani, on the 

 authority of Berlese who has figured this species in his Icones (tab. 

 XIV, fig. 2). 



M. plumigera, E. & E. (in Herb.) 



Perithecia scattered, depressed-globose, about J mm. diatti., 

 slightly raising the epidermis which is pierced by the subprominent. 

 short-conical or short-cylindrical ostiolum. Asci oblong-clavate, short- 

 stipitate. 130-150x22-25 p, 8-spored, paraphysate. Sporidia inor- 

 dinate, oblong-cylindrical, hyaline, 3-septate, 55-60 x 12 /jl. 



On dead limbs of Viburnum lentago, Newfield, N. J. 



The sporidia exude from the ostiola in little white, brush-like 

 cirrhi. This is different from M. Corni (Fr. & Mont.), Sacc. Syll. 

 2859, which has brown sporidia 75-90 x 20-25 a. It is not probable 

 that the sporidia in M. plumigera ever become brown as they are per- 

 fectly hyaline when they issue from the ostiolum. 



M. cleistotheca, Hark. 1. c. 



Perithecia minute, covered. Asci pyriform or obovate, 8-spored, 

 thick-walled, without any stipe or point of attachment, 48 x 30 ti. 

 Paraphyses agglutinate. Sporidia hyaline, of two opposed, rather long, 

 equal cones, occasionally each of these divided so as to make the spo- 

 ridiiim 3-septate, surrounded by a gelatinous stratum, 32-40 x 8-10 /i. 



On dead stems of Dendromecon rigidum, California. Appar- 

 ently an anomalous species. We have seen no specimens. 



M. gigaspora, Fckl. Symb. Nachtr. II, p. 28. 



Perithecia subcuticular, raising the epidermis into pustules, scat- 

 tered or 2-3 together, rather large, globose, black, with a dirty-col- 

 ored nucleus. Ostiolum very minute, papilliform, in a small, black 

 disc. Asci saccate, sessile, 8-spored, 272 x 68 tx. Sporidia generally 

 4 in the upper part, and 4 in the lower part of the ascus, conglobate 

 or uniseriate, very large (96 x 28 //), oblong-ovate, obtuse at the ends, 

 slightly curved, 3-septate, not constricted, cells uninucleate, with a 

 narrow, hyaline margin, pale umber; paraphyses filiform, shorter than 

 the asci. 



On branches of Viburnum Lentago, Albany, N. Y. (Peck). 



Peck gives the sporidia as 75 ti long, 4-celled, the two middle 

 cells shorter than the terminal ones. We have not seen the speci- 

 mens, and take the diagnosis above from Fckl. 1. c. There may be 

 some doubt whether the New York specc. are the genuine M. gigas- 



