HELOTIUM. 247 



On fallen acorns, beechmast, chestnuts, also on fir cones. 



The hyrnenium is usually white at first, afterwards it 

 becomes yellow; the exterior dirty white; the stem is 

 attenuated towards the base, not unfrequently minutely 

 pubescent ; the spores vary from clavate to fusiform, straight 

 or slightly curved, with two guttulae, becoming uniseptate. 

 (Phillips.) 



Specimens examined in Cooke, Fung. Brit., ed., ii. n. 392, 

 and Eehm, Ascom. nos. 9 and 10. 



Helotium bolare. Mass. 



Scattered or gregarious, stipitate, globose and closed when 

 young, then expanding until quite plane, firm, rather fleshy, 

 glabrous, margin minutely fimbriate, warm brown, outside 

 ochraceous, with minute wrinkles radiating from the stem, 

 2-4 mm. across ; stem 35 mm. long, equal or slightly nar- 

 rowed below, pale ochraceous, glabrous ; hyp ithecium and 

 epithecium formed of slender, hyaline, interwoven hyphae, 

 passing into a delicate, parenchymatous cortex, the cells 

 narrow and much elongated in the direction from base to 

 margin ; asci almost cylindrical, 8-spored ; spores 1-seriate, 

 hyaline, smooth, at first continuous and 2-4-guttulate then 

 becoming more or less distinctly many-septate, straight or 

 slightly curved, narrowly elliptical, 16-18 X 8-9 p.; para- 

 physes slender, thickened up to 3 p. at the yellowish tips. 



Peziza bolaris, Batsch, Elench., p. 221, t. 28, fig. 155. 



Ciborialolaris, FckL, Symb. Myc., p. 311. 



Hymenoscypha bolaris, Phil., Brit. Disc., p. 124. 



On fallen branches. 



Allied to H. virgiiltorum, but distinguished by the broader 

 spores. 



Helotium concolor. Mass. 



Scattered, stipitate, hemispherical, thin, firm, pallid or 

 dirty white and pruinose externally ; disc pallid, brown ; 

 margin minutely fimbriate, -\-l mm. across; stem about 

 iV mm. high, rather stout ; asci cylindric-clavate, 8-spored ; 

 spores irregularly 2-seriate, oblong or subfusiform, hyaline, 

 continuous, 8-10 X 2-3 p.; paraphyses filiform, slender. 



Peziza concolor, Phil., Grev., viii. p. 102. 



Hymenoscypha concolor, Phil., Brit. Disc., p. 139. 



Phialea concolor, Sacc., Syll., viii. n. 1063. 



