36 FUNGUS-FLORA. 



smooth, black and shining, margin pale, splitting by a longi- 

 tudinal fissure, about mm. long and j mm. broad ; asci 

 clavate, attenuated below into a long, slender pedicel, 

 8-spored ; spores filiform or slightly fusiform, usually curved, 

 continuous, multiguttulate, hyaline, 20-25 X 2-5-3 p., ar- 

 ranged in a parallel fascicle ; paraphyses slender, more or- 

 less curved at the apex. 



Hysterium conigenum, Pers., Sj'n. Fung., p. 102. 



On fallen cones of Scotch fir. Confined to the upper 

 exposed portion of the scales. 



LOPHIUM. Fries, (figs. 1-4, p. 22.) 



Ascophore vertical, mussel-shaped, compressed laterally, 

 submembranaceous, fragile, black ; lips acute, at first in 

 contact, then gaping slightly and dehiscing by a long, nar- 

 row slit ; asci cylindrical, 8-spored ; spores filiform, very 

 long, multiseptate, arranged in a parallel fascicle, hyaline or 

 with a yellow tinge; paraphyses slender, septate, branched, 

 colourless. 



Lophium, Fries, Syst. Myc., ii. p. 533; Sacc., Syll., ii. 

 p. 799 ; Cke., Hdbk., p. 766. 



Eeadily distinguished by the very long, needle-shaped, 

 multiseptate spores, and the form of the ascophore, which 

 almost exactly resembles in miniature, a mussel shell fixed 

 by the hinge and standing vertically, with the slightly 

 gaping lips above. 



Lophium mytillinum. Fries, Syst. Myc., ii. p. 533 ; 

 Sacc., Syll., ii. n. 5838 ; Cke., Hdbk., p. 766, fig. 364. (figs. 

 1-4, p. 22.) 



Ascophore mussel-shaped, subpedicellate, transversely 

 striate, black, shining, about 1| mm. long, -- mm. high and 

 broad; cells of excipulum small, very compact, blackish; 

 asci cylindrical, shortly stipitate ; spores 8, arranged in a 

 parallel fascicle, nearly as long as the ascus, very slenderly 

 needle-shaped, multiguttulate then more or less perfectly 

 multiseptate, hyaline, 120-150 x 1*5-2 /*; paraphyses nume- 

 rous, cylindrical, about 2 p. thick, septate, branched. 



Hysterium mytilinum, Pers., Syn. Fung., p. 97. 



