OSTBOPA — BOBERGEA. 67 



nmlti-septate, hyaline, 150-1 SO x 1 ■ 5 /i : pai-apliyses filiform, 

 about 1-5/1. tihict, septate, branched at the apex, hyaline. 



Hysterium cinereum. Pars., Syn. Fung., p. 99. 



On dry branches of ash, poplar, -willow, hazel, tVc. 



Specimen from Fries examined. 



EOBEEGEA. Desm. 



Ascophore immersed in the substratum, somewhat coria- 

 ceous, flask-shaprd, horizontal, reaching the surface hr a 

 more or less vertical, elongated neck, mouth minute, 

 rounded, ernmpent ; asci narrowly cylindrical, s-spored, apex 

 thickened ; spores needle-shaped, many-septate, hyaline, 

 nearly as long as the ascus, and arranged in a parallel 

 fascicle ; paraphyses very slender and veiy straight, hyaline. 



Bohergea, Desmaz., Crypt. France, exs., ser. i. n. 1526 ; 

 Desm., Ann. ScL Xat., ser. ui. 184", vol. viii. p. 177; >>ace., 

 -Syll., ii. p. 806; Eehm, Krypt.-Flora, Disc, p. 189. 



Eeadily distinguished by the flask-shaped ascophore lying 

 horizontally in the substance of the matrix, and reaching the 

 surface by an elongated, ascending, narrow neck. 



Robergea tmica. Desmaz., Crj-pt. France, ser. L 

 n. 1526; Desm., Ann. Sci. Xat, ser. iii. vol. viii. p. 177- 

 179; Sacc, Svll., ii. n. 5861; Eehm, Krypt.-Flora, Disc, 

 p. 190. 



Gregarious : ascophore flask-shaped, buried in the wood, 

 horizontal, 2-2 ■ 5 mm. long, 1 mm. broad, reaching the 

 surface by means of a more or less vertical, elongated neck, 

 which bursts through the bark, often forming an elongated 

 slit, mouth of neck small, round, whitish, often surrounded 

 by white meal ; asci ver^- long, narrowly cylindrical, apex 

 thickened ; spores needle-shaped, straight, many-septate, 

 hyaline, 400-55i;» x 1-1 * 5 /i, arranged in a parallel fascicle ; 

 paraphyses filiform, simple, straight, about 1 /i thick, 

 colourless. 



On dry branches of ash, poplar, hazel, itc. 



Specimen examined from Desmaziere's Crypt. France, exs., 

 ser. i. n. 1526. 



