HELOTIUM. 237 



is often blackish, remainder bright yellow, concave then 

 convex, adpressed to the wood, glabrous, 1-2 mm. across ; 

 hypothecium and excipulum formed of interwoven hyphae, 

 these run as parallel septate hyphae, radiating from base to 

 margin to form the cortex ; asci elongated, narrowly clavate, 

 pedicel long and slender, 8-spored ; spores obliquely 1-seriate, 

 hyaline, continuous, 10-15 x 4-5 /* ; paraphyses hyaline, 

 cylindrical, about 2 p. thick. 



Peziza lenticularis, Ball., Champ. Fr., t. 300, figs. A, c. 



On rotten trunks and branches, especially beech. 



Specimen in Fung. Khen., n. 1151, examined. 



Helotium ochraceum, Berk., Outl., p. 372; Phil., 

 Brit. Disc., p. 169 ; Sacc., Syll., viii. n. 937. 



Ascophores gregarious, piriform and closed at first-, gradu- 

 ally expanding until quite plane, attached by a very short 

 stem-like base, yellowish brown, glabrous, but the disc 

 covered with minute, glistening particles ; about ^ mm. 

 across, rather fleshy, firm, cortical cells polygonal at ttie base, 

 becoming long and narrow towards the margin ; asci clavate, 

 tapering gradually from apex to base, often curved, 8-spored ; 

 spores irregularly 2-seriate, hyaline, continuous, narrowly 

 elliptical, ends rather obtuse, straight or slightly bent, 24-26 

 X 5 fji ; paraphyses hyaline, very slender, often irregularly 

 branched. 



Peziza ocliracea, Grev., Scot. Crypt. Flora, pi. 5. 



On bark. 



Distinguished from allied species by the asci tapering very 

 gradually from apex to base, and by the disc being covered 

 with minute, glistening granules. The type specimen is 

 lost, and I have accepted as typical a specimen identified by 

 the late Captain Carmichael, and now in the Kew Herb. 



Plants minute, gregarious, of an ochrey brown colour, 

 globular and concave in the young state, and gradually 

 becoming plane or even somewhat convex ; substance thick 

 and fleshy, not shrinking much in drying; margin depressed, 

 rounded, entire, somewhat showing a tendency to become 

 lobed ; barren or inferior surface smooth, rugose and rather 

 puckered towards the root ; hymenium or upper surface 

 appearing as if sprinkled with minute shining particles not 

 unlike small grains of brown sugar. (Grev.) 



