170 



Var. millegrana {Sphmria millegrana, Scliw.), on dead trees, 

 Washington, and on decorticated oak limbs, New Jersey, has asci 

 ]i. sp. 80x10-12 [1, and sporidia 12-15x8-10 fx. 



Var. transversalifi {Sphceria transversalis, Schw. 1. c), on rotten 

 limbs of Liriodendron, Sonth Carolina (growing transvei-sely and 

 surrounding the limb like a ring) differs from var. milleyrana in ite 

 annular mode of growth. 



The following is a list of measurements of asci and sporidia in 

 some of the exsiccati above quoted. — Sacc. M. V. 1158, asci (p. sp.) 

 65-70x8-10 //, spor. 10-12 x 7-8 /^. Kunze. 260, spor. 8-10 x 6-8 //. 

 Rabh-Winter F. E. 2766, asci (p. sp.) 60x8-10 /i, spor. 8-10x6-8//. 

 Rehm Asc. 695, asci (p. sp.) 65-70x8-10 /^, spor. 8-12x7-8//. 

 Sydow M. March. 1835, spor. 10-12x7-9//. Measurements of ^. 

 millegrana, Schw. Rav. Car. IV, 58, spor. 8-11x6-7//. Rav. p\ 

 Am., spor. 10-12x6-8 //. Specc. in our Herb, from Delaware, have 

 ^por. 7-8 X 5-7 // (mostly 6-8 x 5-6 /^). 



Excepting the var. millegrana. the American specimens have asci 

 and sporidia about as in European specimens. There is no appreciable 

 difference in the perithecia from the various localities, except a little 

 variation in size and roughness. Were there no intermediate forms, 

 tlie Washington and Delaware specimens might consistently be sepa- 

 i-ated, on account of the great disparity in the size of the sporidia, but 

 the occurrence of almost every gradation in size between them, makes 

 any specific distinction a matter of doubtful expediency, and we have 

 therefore, placed R. millegrana as a Syn. of R. 2ndveracea, (Ehr.) 



R. ulmaticolor, (B. & ('.) 



Sphturia ulmaticolor, B. & C. Grev. IV, p. 152. 

 Rosellinia ulmaticolor, Sacc. Syll. 980. 



" Perithecia very minute, on effused, umber-colored spots. Asci 

 linear. Sporidia uniseriate, brown, elliptical, 7J-8 // long. 

 On smootli, decorticated limbs," South Carolina. 



R. glandiform is, E. & E. Proc. Acad. Nat. Sci. 1. c. 



Perithecia scattered, ovate-globose, black and glandular-rough- 

 ened, I-I5 mm. diam., the lower part (about \) sunk in the wood, and 

 generally with a slight reinforcement around the lower half of the 

 projecting part, like the cup of an acorn, but this is sometimes want- 

 ing or reduced to a mere thin, granular coat. Ostiolnm papilliform, 

 mostly small, sometimes obsolete, the apex of the perithecium being 

 then evenly rounded. Asci cylindrical, 100-114x8-10 //, with 

 abundant paraphyses. Sporidia uniseriate, acutely elliptical, opake, 

 (subhyaline at first), 14—15x7-8 //. Allied to R. subicvlata, (Schw.) 



On a live oak stump, Louisiana (Langlois), on rotten wood. Long 

 Island, N. Y. (Zabriskio). 



