402 FUNGUS-FLOKA. 



expanded, discoid, and applanate ; when old often irregular, 

 recurved, and wavy, very frequently umbilicate, almost 

 sessile or contracted to a short, stem-like base, then more or 

 less obconic; 1-6 cm. across; disc blackish brown, often 

 with an olive or purple tinge, more or less scabrid or 

 tuberculate, externally granulated, dingy brown ; excipulum 

 pseudoparenchymatous, peripheral cells largest and running 

 out into irregular groups forming the granular exterior ; 

 asci cylindrical, apex rounded, 8-spored ; spores globose, 

 1-seriate, for a long time hyaline and smooth, finally 

 becoming clear pale brown and rather closely covered with 

 blunt warts, 10-14 /x diameter; paraphyses septate, tips 

 clavate and filled with brown granules. 



Peziza trachycarpa, Currey, Linn. Trans., vol. xxiv. p. 493, 

 t. 51, figs. 3-5 ; Cooke, Mycogr., fig. 257 ; Phil., Brit. Disc, 

 p. 65, pi. iii., fig. 15. 



Detonia trachycarpa, Sacc, Syll., viii. n. 395. 



Peziza leiocarpa, Currey, Linn. Trans., vol. xxiv. p. 493, 

 t. 51, figs. 4 and 8; Cke., Mycogr., fig. 256; Phil., Brit. Disc, 

 p. Q6. 



Detonia leiocarpa, Sacc, Syll., viii. n. 394. 



On the ground, especially where fires have been. 



An examination of the type specimens shows clearly that 

 Currey 's P. leiocarpa is nothing more than the young stage 

 of his P. trachycarpa. The spores are smooth and colourless 

 at first and also smaller than at maturity; every transition 

 from the smooth, hyaline spore to the coarsely warted, 

 brown condition is shown in the specimens. 



Cfoveata (Fckl.) Mass., somewhat resembles C. trachycarpa 

 in general appearance, but differs in the globose, pale brown 

 .spores being perfectly smooth, 10 /x diani. At present only 

 known from Germany. 



MASSEEA. Sacc 



Ascophore sessile, somewhat fleshy, concave then becoming 

 plane, glabrous, brightly coloured ; excipulum parenchy- 

 matous ; asci clavate, 8-spored ; spores irregularly 2-seriate, 

 elongated, hyaline, 3-5 septate ; paraphyses present. 



Masseea, Saccardo, Syll., viii. p. 488. 



