HELOTIUM. 245 



Scattered or gregarious, stem short or somewhat elon- 

 gated, watery-waxy, somewhat firm, ascophore ranging from 

 slightly concave to slightly convex, pallid whitish, or yel- 

 lowish to ochraceous, dingy testaceous or subferruginous 

 when dry, often fiexuous and umbilicate, 2-4 mm. broad ; 

 stem livid becoming pale, or pallid, hollow, 1-8 mm. high ; 

 asci cyiindrio-clavate, 65-90 X 6-8 /x, apex very slightly or 

 not at all blue with iodine ; spores usually obliquely 1-seriate. 

 oblong, generally 2-guttulate, 7-14 X 3-4 fi; paraphyses 

 filiform, slightly incrassated. 



Peziza uUginosa, Pries, Syst. Myc, ii. p. 138. 



Mymenoscypha uliginosa, Phil., Grev., xvii. p. 45. 



On branches, bark, and wood, especially alder, willow, and 

 ash. 



Unknown to me. The above description is copied from 

 Karsten, Myc. Penn., i. p. 121. Phillips quotes Karsten, 

 Fung. Fenn., n. 639, and if he has actually found specimens 

 agreeing with the above description, then the specimens must 

 be mixed, as in the Kew copy of Karsten's exsicc. I find 

 under n. 639, a totally different fungus with narrowly fusi- 

 form spores 22-25 x 4-5 fj., multiguttulate, and showing 

 indications of becoming multiseptate, as in Belonidium. 



Helotium salicellum. Pr., Summa Veg. Scand., 

 p. 856; Phil., Brit. Disc, p. 159; Eehm, Krypt.-PL, Disc, 

 p. 786 ; Sacc, Syll., viii. n. 941. 



Ascophores gregarious, developing under the bark and 

 bursting through, at first subglobose and closed, then ex- 

 panding and becoming almost or quite plane, substance firm, 

 pallid ochraceous, disc sometimes with a brownish tinge, 

 1—2 mm. across; stem 1-1*5 mm. long, slender, pale; exci- 

 pulum and stem composed of more or less parallel, hyaline, 

 septate hyphae, which become thicker and more closely 

 septate at the periphery, and end in closely packed, parallel 

 hyphae of equal length, and about 4 ij. thick at the margin 

 of the exoipulum; hypothecium composed of thin, inter- 

 woven, colourless hyphae ; asci clavate, apex somewhat 

 narrowed, rather thick-walled, 8-spored ; spores narrowly 

 cylindric-fusiform, ends acute, straight or slightly curved, 

 hyaline, smooth, 2-4-guttulate, then 1-3-septate, 28-32 x 

 5-7 )ti ; irregularly biseriate at the apex of the ascus ; para- 



