Apostemidium 183 



No material has been seen and the above is all that is known 

 of this species. It was originally placed in the subgenus Mol- 

 lisia. 



32. APOSTEMIDIUM Karst. Myc. Fenn. 1: 15, 186. 1871. 



Gorgoniceps Karst. Myc. Fenn. 1: 15, 185. (in part). 1871. 

 Vibrissea Phill. Trans. Linn. Soc. II. 2: 8. 1881. 



Apothecia sessile, turbinate, or convex, soft-waxy, or subge- 

 latinous; hymenium spread on the upper, convex, or plain 

 surface, sterile below; asci narrowly cylindric, opening by a pore, 

 8-spored; spores in a parallel fascicle in the ascus, h>'aline, fili- 

 form, many-septate, nearly as long as the ascus; paraphyses 

 present. 



Type species, Peziza fisceUa Karst. 



This genus is sometimes treated with the Geoglossaceae next 

 to Vibrissea which it resembles in spore characters but in the 

 opinion of the writer scarcely belongs there. 



Paraphyses longer than the asci, repeatedly forked near 



the apices. 1 • -4 . Guernisaci. 



Paraphyses equaling or scarcely exceeding the asci, sim- 

 ple or rarely forked. 2. A. vibrisseoides. 



1. Apostemidium Guernisaci (Cr.) Durand, Ann. Myc. 6: 456. 

 1908. (Plate HI.) 



Vibrissea Guernisaci Crouan, Ann. Sci. Nat. IV. 7: 176. 1857. 

 Gorgoniceps Guernisaci Sacc. Syll. Fung. 8: 505. 1889. 

 Gorgoniceps turbintdata Rehm, Ann. Myc. 2: 353. 1904. 



Apothecia solitary, or gregarious, sessile by a rather broad 

 base, turbinate, or convex; hymenium plain to convex, bluish- 

 pallid to orange-ochraceous, 1-4 mm. in diameter, even, or 

 sometimes wrinkled, often with a dimple in the center, dark- 

 brownish below, somewhat furfuraceous; asci long-cylindric, 

 apex rounded, reaching a length of 225-300 n and a diameter of 

 5-6 m; 8-spored; spores in a parallel fascicle in the ascus, hyaline, 

 slenderly filiform, multiseptate, 1 X 200-250 m; paraphyses 

 numerous, filiform, hyaline, longer than the asci, the apical por- 

 tion (about as much as projects beyond the asci) repeatedly 

 forked or fasciculately branched, the tips abruptly pyriform- 

 thickened, hyaline, 4-5 y. thick. 



On dead sticks and wood in water. 



Type locality: Europe. 



Distribution: New York and New England to Washington. 



