231 



Perithecia gregarious, immersed or semiimmersed in the wood, 

 subglobose, small (200-250 a). Ostiolnm compressed, truncate, emer- 

 gent. Asci clavate, short-stipitate, 70-75x7 t u (80 x 10-12 p, Sacc.), 

 obtuse and with abundant paraphyses, 8-spored. Sporidia biseriate. 

 biconic-fusoid, 12-18x4-5 // (18-20 x4|-5 /*, Sacc.), nearly straight, 

 uniseptate and constricted, hyaline, witli a very short, hyaline append- 

 age at each end. 



On rotten wood, Louisiana (Langlois. 1770). 



The appendages are very faint and easily overlooked. 

 L. heterostomum, E. & E. Jonrn. Mycol. II, p. 99. 



Lophiosphtzra heterostoma, Berlese Icones Fasc. I, tab. Ill, fig. i. 



Perithecia erumpent, scattered or subgregarious, ^-f mm. diam.. 

 depressed-spherical, the lower half sunk in the wood, the upper half 

 emerging. Ostiolum large, compressed, extending at first nearly or 

 quite across the peritheciuin, at length deciduous, leaving the peri- 

 thecium pierced above with a small, round opening. Asci clavate- 

 cylindrical, rounded above and contracted below into a slender, stipe- 

 like base, 70-80 x 6-7 //, surrounded with abundant, rather stout 

 paraphyses and containing eight fusoid, uniseptate, hyaline, slightly 

 curved, appendiculate sporidia, 18-20 x4|-5 //, 3-4-nucleate at first, 

 but the nuclei and stout, 8-10 // long, hyaline appendages at length 

 disappear, and the sporidia become constricted in the middle with the 

 ends rounded (fusoid-oblong), often with a distinct yellow-brown shade. 

 The wood just below the surface assumes a uniform purplish-red color. 

 This might, perhaps, be considered a var. of Lophiostoma pulver- 

 aceum, Sacc., but differs in the stained matrix, larger perithecia and 

 deciduous ostiola. 



On an oak barrel-bottom, Louisiana, and on decorticated wood in 

 Northern New Jersey. 



L. Floridannni. E. & E. Journ. Mycol. II, p. 40. 



Perithecia gregarious or scattered, hemispherical, black and 

 rough, about J mm. diain. Ostiolum linear, extending quite across 

 the apex of the peritheciuin, but scarcely prominent. Asci clavate- 

 c-ylindrical, 80 x 8 //, with an elongated, slender base and surrounded 

 with abundant, filiform paraphyses. Sporidia biseriate, fusiform, 

 slightly curved, olivaceous, 4-nucleate, uniseptate, constricted at the 

 septum, just above which they are slightly swollen, 18-20 x 4-4 J /*. 

 The matrix is overrun with a hyphomycetous growth, which also 



