392 FUNGUS-FLORA. 



slightly pubescent owing to the presence of stout, septate 

 hyphae springing from many of the large cells of the exci- 

 pulum ; asci almost cylindrical, base attenuated, spores 8, 

 obliquely uniseriate, elliptical, smooth, hyaline, usually 

 1-2 guttulate, 16-21 x 9-10 /x; paraphyses numerous, form- 

 ing a large curve at the apex, which is only very slightly 

 or not at all thickened, but often showing a slight tendency 

 to become nodulose, sparingly septate or aseptate, colourless, 

 about 3 fx thick. 



Peziza semiimmersa, Karsten, Monog. Pez., p. 117 ; Myc. 

 Fenn., i. p. 45 ; Cke., Mycogr., f. 46 ; Phil., Brit. Disc, 

 p. 95. 



Humana semiimmersa, Sacc, Syll., n. 568. 



On damp naked ground, especially when of a sandy nature. 

 Gregarious and more or less immersed. 



Specimen in Karsten's Fung. Fenn. Exs., n. 724, examined. 



Very much the colour of the soil, and buried half-way in 

 the ground. The disc is more decidedly flesh-colour. (Phil.) 



Sepultaria coronaria. Mass. 



Subterranean at first, then bursting through and becoming 

 partly exposed ; subglobose and closed at first, then splitting 

 from the apex in a stellate manner into 5-8 pointed teeth 

 which spread or even become reflexed with age, 6-12 cm. 

 across, often furnished with a short, stout, stem-like- rooting 

 base ; excipulum fleshy, rather brittle, composed of colour- 

 less septate, interwoven hyphae, mixed with large vesicular 

 cells ; disc varying in colour from dark purple to rosy ; ex- 

 ternally pallid with tinge of blue or brownish purple, 

 glabrous ; asci narrowly cylindrical, very long, apex rounded, 

 8-spored ; spores obliquely uniseriate at the urjper part of 

 the ascus, hyaline, smooth, continuous, elliptic-oblong, ends 

 obtuse, often 2-guttulate, 14-18 x 7-8 /x; paraphyses fili- 

 form, apex clavate, hyaline. 



Peziza coronaria, Jacq., Misc,, p. 140, t. 10; Sacc, 

 Syll., n. 287 ; Phil., Brit. Disc, p. 68 ; Cooke, Mycogr., 

 fig. 238. 



Peziza macrocalyx, Smith, Journ. Bot., 1869, p. 345, t. 98. 



On the ground under trees. Spring. 



Specimen in Rehm's Ascom., n. 602 ; also W. Gr. Smith's 

 specimen of P. macrocalyx, examined. 



