OTIDEA. 447 



disc ochraceous-yellow or tinged brown; externally dark 

 olive-green or olive-brown, lacunose and covered with white 

 down at the base, attached to the ground by rusty mycelium ; 

 excipulum formed of compactly interwoven, hyaline hyphae, 

 which becomes more or less parenchymatous at the surface, 

 forming a coloured, slightly scurfy cortex ; asci cylindrical, 

 wavy and narrowed at the base, 8-spored ; spores obliquely 

 uniseriate, smooth, hyaline, continuous, usually 2-guttulate, 

 elliptical, ends narrowed, 16-18 X 7-8 fx; paraphyses slender, 

 septate, slightly thickened and often curved at the apex, 

 hyaline. 



Peziza grandis, Pers., Obs., i. p. 27 ; Cooke, Mycogr., 

 fig. 376; Sacc, Syll., viii. n. 275; Phil., Brit. Disc., p. 61. 



On the ground in pine woods, &c. 



Specimen in Eehm's Ascom., n. 651, accepted as typical; 

 Kehm, Ascom., n. 651b, also called Otidea grandis, is Peziza 

 cochleata as understood in the present work. 



The asci, spores, and paraphyses are practically alike in 

 Peziza cochleata, Otidea leporina, and Peziza grandis. The 

 first is distinct in the very open, spongy weft of hyphae 

 forming the subiculum ; the two last named agree in the 

 very densely interwoven hyphae of the excipulum, but 0. 

 leporina is pale tan externally, whereas P. grandis is dark 

 olive-green. 



** Disc orange. 



Otidea onotica. Fckl., Symb. Myc, p. 329 ; Sacc, 

 Syll., viii. n. 350. 



" Very variable in form, usually elongated on one side and 

 ear-shaped, but sometimes almost equal-sided and entire, 

 3-7 cm. high, up to 5 cm. wide, becoming narrowed to a 

 more or less wrinkled, short stem-like base; disc pale 

 orange, usually with a rosy tinge, externally pale tawny- 

 orange ; excipulum parenchymatous also the hypothecium, 

 middle layer formed of interwoven, septate, hyaline hyphae, 

 6-9 fx thick, becoming again parenchymatous and pale brown 

 towards the outside, the cells growing out in irregular 

 clusters and forming the mealy exterior ; asci elongated, 

 narrowly cylindrical, 8-spored ; spores obliquely 1-seriate, 

 hyaline, smooth, colourless, ends obtuse, 1-2-guttulate, 

 14-15 X 8-9 fi; paraphyses straight, septate, apex clavate. 



