352 FUNGUS-FLOKA. 



Specimen examined in Rehm's Ascom., n. 65a, also 

 Sydow, Myc. March, no. 1364. 



Dasyscypha sulfurea. Mass. 



Ascophores scattered, sessile but narrowed at the base, 

 closed at first, becoming plane, margin slightly raised, up to 

 1*5 mm. broad, externally densely villose, sulphur-yellow, 

 hairs crowded, straight, septate, cylindrical, rather pointed 

 or obtuse, rough with minute lumps of lime, pale greenish- 

 yellow or sometimes pale yellowish- brown, 150-200 x 5/x; 

 cortex parenchymatous, cells irregularly polygonal, 5-6 /x dia- 

 meter ; the hairs and tissue of excipulum and cortex become 

 violet-colour with potassic hydrate; asci clavate, 8-spored ; 

 spores elliptic-fusiform, continuous, hyaline, straight or 

 slightly bent, 2-seriate, 8-10 X 1*5-2 /x; paraphyses lan- 

 ceolate, acute, longer than the asci, hyaline, 4-5 /x broad 

 at the widest part. 



Peziza sulfurea, Pers , Tent. Disp. Meth., p. 33. 



Lachnum sulfureum, Rehm, Krypt.-Flora, Disc, p. 891. 



On dead stems of herbaceous plants. 



We have in Britain three distinct species which have 

 hitherto been included under the name of Peziza sulfurea, 

 Persoon. The present, distinguished from D. leacophaea by 

 the smaller spores, and by the substance of the excipulum 

 and external hairs being coloured violet by a solution of 

 potassic or ammonic-hydrate. Finally Erinella Nylanderi is 

 distinguished from both the preceding by the much larger, 

 multiseptate spores. 



Dasyscypha cerina. Fckl., Symb. Myc, p. 305; 

 Sacc, Syll., viii. n. 1887. 



Gregarious or crowded, narrowed into a very short stem- 

 like base, or quite sessile, margin incurved and closed when 

 young, then expanding, 1-2 mm. across; everywhere waxy- 

 yellow, often with a tinge of olive ; externally and the 

 margin villose, hairs thin-walled, septate, cylindrical, obtuse, 

 usually slightly wavy, 150-200 x 5-6 /x; rough externally 

 with particles of lime; cortical cells 6-8 /x diameter; asei 

 narrowly clavate, 8-spored; spores irregularly 2-seriate, 

 smooth, Iryaline, continuous, elliptical, 6 x 2*5-3 fx ; 

 paraphyses slender, narrowly lanceolate and acute, rather 

 longer than the asci. 



