GFEOPYXIS. 387 



I have found them in this stage upwards of if inches 

 (42 mm.) in diameter. The tissues lining the cup continues 

 to increase; and at last the hymenium may become only 

 slightly concave, or flattened, or even slightly convex, so as 

 to resemble greatly Peziza ancilis, Rehni (a species that I 

 have found in Aberdeenshire in April, on ground covered 

 with old sawdust). In this condition I have found examples 

 exceeding 2| inches (60 mm.) in breadth. 



Geopyxis undata. Mass. 



Gregarious, stipitate and rooting, fleshy, disc slightly 

 concave, afterwards expanded, then reflexed, generally corru- 

 gated, yellowish, buff, grey, purple, or pallid, 1-2 mm. across ; 

 asci cylindrical, 8-spored ; spores elliptic, smooth, 10 x 5 /*, 

 obliquely 1-seriate ; paraphyses stout, enlarged upwards. 



Peziza undata, W. G. Smith, Grev., vol. i. p. 136, pi. 10, 

 figs. 1-2 ; Cooke, Mycogr., fig. 279 ; Phil., Brit. Disc., p. 79 ; 

 Sacc., Syll., viii. n. 320. 



On stems of tree-ferns, Veitch's Nursery, Chelsea. 



Specimen in Herb., Kew, communicated by the author, 

 examined, but unfortunately the structure of the ascophore 

 could not be determined. Remarkable for the small spores. 

 The asci show no trace of blue when treated with iodine. 



Geopyxis muralis. Sacc., Syll., viii. n. 245. 



Gregarious, stipitate, concave at first then nearly plane, 

 firm, centre fleshy, becoming thin towards the margin, 

 glabrous, entirely pale clay-colour, 4 mm. to 1 cm. across ; 

 stem 2-4 mm. long, rather slender ; asci cylindrical, 8-spored ; 

 spores 1-seriate, hyaline, continuous, smooth, elliptical, 

 14 x 8 p.; paraphyses very slender, not thickened at the 

 tips. 



Peziza muralis, Sow., Eng. Fung., t. 251 ; Phil., Brit. Disc., 

 p. 48. 



On clay. 



A somewhat doubtful species. I can find no plants on the 

 lumps of clay in the Kew Herb., on which the typt> speci- 

 mens, figured by Sowerby, grew. The description of the 

 asci, spores, and paraphyse.s are from a sketch by Phillips, 

 who had examined the typa before all the specimens had 

 decayed. 



