236 FUNGUS-FLORA. 



about same in height ; hypothecium and excipulum formed 

 of hyaline, interwoven hyphae ; these are parallel in the cor- 

 tical portion, and run out into parallel, slender, short hyphae 

 at the margin; asci cylindrical, apex obtuse, pedicel nar- 

 rowed, 8-spored ; spores irregularly 2-seriate, or sometimes 

 almost obliquely 1 -seriate, hyaline, continuous, smooth, 3-4- 

 guttulate, fusiform, ends acute, or the apex sometimes obtuse, 

 18-22 x 6-7 p.; paraphyses numerous, about 2 p. thick, hya- 

 line, tips only slightly thickened. 



Hymcnoscypha laburni, Phil., Brit. Disc., p. 135. 



On decorticated branches of laburnum. 



Type specimen examined. 



H. salicellum is allied to the present species, but differs in 

 the orbicular, plane, adpressed ascophore, margin not fur- 

 nished with parallel hyphae, and the spores becoming 

 septate. 



Helotium ferrugineum. Fr., Summa Veg. Scand., 

 p. 356; Phil., Brit. Disc., p. 154; pi. 5, fig. 30; Sacc., Syll., 

 viii. n. 949. 



Gregarious or scattered, narrowed below into a more or 

 less distinct stem-like base; at first piriform and closed then 

 expanding until saucer-shaped, glabrous, about 1 line broad ; 

 disc brownish or yellowish rust-colour, externally pale ; cor- 

 tex composed of very narrow, parallel hyphae radiating from 

 base to margin ; asci cylindric-clavate, apex narrowed, pedi- 

 cel long and slender, 8-spored ; spores irregularly 2-seriate 

 upwards, hyaline, smooth, continuous, elliptical, ends rather 

 acute, or the apex sometimes obtuse, 10-13 X 3-3-5 //. ; 

 paraphyses slender, hyaline, slightly thickened upwards. 



Peziza fer ruginea, Schum., Saell., p. 412. 



On dead twigs of oak, &c. 



Specimen in Herb. Berk., accepted as typical. 



Cups gregarious or scattered, about to ^ a line broad ; at 

 first concave then plane, at length convex; flesh tinted 

 brown ; margin lighter in colour than the disc, which is fer- 

 ruginous ; sporidia very variable in size and shape. (PhiL) 



Helotium lenticulare. Fries, Summa Veg. Scand., 

 p. 356; Phil., Brit. Disc., p. 157 ; Sacc., Syll., viii. n. 916. 



Gregarious or sometimes several individuals become con- 

 fluent, sessile or narrowed into a short, stem-like base, which 



