629 



from' compression, about 1 mm. long by i mDQ , wide, covered above 

 with a thin, stromatic layer which is pierced by the punctiform ostiola 

 as in Nummularia punctulata, B. & Raw Asci 100-110x6-7 fi. 

 (p. sp. 70-75 fi long). Sporidia obliquely uniseriate, navicular-oblong 

 or inequilaterally elliptical, rather pale brown, 2-nucleate, 10-14 x 

 4-5 ju. Substance of the stroma compact, light slate-color with a tinge 

 of umber and a silky luster when fractured. 



On rotten wood, Louisiana (Langlois). 



** Perithecia stratose. 



H. ovinum, Berk. Grev. XI, p. 129. 



Hemispherical or confluent-elongated, dark purple, hard, smooth, 

 subshining, dark within. Perithecia stratose, black, subglobose. Osti- 

 ola obsolete. Asci c}dindrical. Sporidia elliptical, dark, 16-18 xl /ul. 



On wood, Orizaba, Mexico. 



H. Petersii, B. & C. Journ. Linn. Soc. X, p. 384. 



Stroma pulvinate, depressed-obconical, centrally attached with a 

 spreading margin, 3-4 x 2|-3 cm. across, covered at first by a thick, 

 coriaceo-membranaceous veil which soon disappears except around the 

 margin; substance corky-fibrous, hard, dull, umber-color, becoming 

 darker outside. Perithecia crowded in several layers, subglobose or 

 subelongated, J-J mm., with slender necks ending in distinctly promi- 

 nent, papilliform ostiola. Sporidia uniseriate or subbiseriate above, 

 narrowly-elliptical, brown, 6-8x3|-4//. Asci cylindrical, p. sp. 

 about 40 x 5 // or, including the slender base, 60 // long. 



On rotten oak, Alabama (Peters), on dead wood, Cuba (Wright). 

 on oak logs, Ohio and Kentucky (Morgan). 



The foregoing description is from Morgan's Ohio specimens. 



which have been compared with specimens in Herb. Berk. In the 



original description, in Linn. Journ., no mention is made of the thick. 



membranaceous veil, which is a striking and unusual character. 



B. Stroma superficial, globose or subglobose. (Sphceroxylon.) 



* Externally colored, not black. 



H. coccineum, Bull. Champ, p. 174. tab. 345, fig. 2. 



Lycoperdon variolosum, L,in. Syst. Nat. Ed. XII, torn. Ill, Append. Veg. p. 204. 

 Valsa fragiformis, Scop. Carniol. II, p. 399. 

 Sphceria lycoperdoides, Weigel Obs. Bot. p. 47. 

 Sphceria rubra, Willd. Flora Berol. p. 415. 

 Sphceria radians, Tode Fungi Meckl. II, p. 29. 

 Sphceria tuberculosa, Sow. Eng. Fungi, III, tab. 374, fig. 8. 

 Sphceria fragiformis, Pers. in Usteri. N. Ann. Bot. fasc. V, p. 21. 

 Sphceria bicolor, DC. Flor. Franc, II, p. 286. 

 Sphceria lateritia, DC. 1. c. VI, p. 137. 



Stromatosphceria fragifor mis, Grev. Scott, Crypt. Flora, III, tab. 136. 

 F,xsicc. Fckl. F. Rh. 1056. Rab. Herb. Mycol. 145, 146. Rab. F. E. 950. Thuin. F. 

 Austr. 258. EH. N. A. F. 117S. Cke. F. Brit. Ser. II, 466. 



