231 



Perithecia gregarious, immersed or semiimmersed in the wood, 

 subglobose, small (200-250 p). Ostiolum compressed, truncate, emer- 

 gent. Asci clavate, short-stipitate, 70-75 x 7 ju (80 x 10-12 //, Sacc), 

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

 biconic-fusoid, 12-18x4-5 p. (18-20x4-5 fi, Sacc), nearly straight, 

 uniseptate and constricted, hyaline, with 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. Journ. My col. II, p. 99. 



Lophiosphcera helerostoma, Berlese Icones Fasc. I, tab. Ill, fig. 2. 



Perithecia erumpent, scattered or subgregarious, J-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 perithecium, 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 /i, surrounded with abundant, rather stout 

 paraphyses and containing eight fusoid, uniseptate, hyaline, slightly 

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

 but the nuclei and stout, 8-10 ju 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. Floridanuni. E. & E. Journ. Mycol. II, p. 40. 



Perithecia gregarious or scattered, hemispherical, black and 

 rough, about \ mm. diam. Ostiolum linear, extending quite across 

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

 cylindrical, 80 x 8 ju, 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 arc slightly swollen, 18-20 x4-4J p. 

 The matrix is overrun with a hyphomycetous growth, which also 



