114 BRITISH DISCOMYCETES. 



Name — Tuber, a tuber ; from its growing from a 

 tuber. 



Caen Wood, Hampstead (Mr. Hunter). Kensington 

 Gravel-pits (Mr. J. L. Knapp). Bitterley, Salop (Mrs. 

 Price). North Wootton, Norfolk ! (Mr. C. B. Plowright). 

 Bomere, near Shrewsbury ! 



2. Hymenoscypha Candolleana. (LeV.) 



Cup thin, plane, smooth, becoming brownish, margin 

 entire; stem filiform, glabrous, or villose at the base, 

 arising from a sclerotium ; asci cylindraceo-clavate ; 

 sporidia 8, elliptic, 8 x 3/u ; paraphyses filiform. 



Peziza Candolleana — Lev., " Ann. Sc. Nafc.," Octobre, 

 1843, xx. p. 233, t. 7, fig. 4 ; B. and Br., " Ann. Nat. Hist.," 

 No. 1723; " Grevillea," vi. p. 127. Sclerotinia Can- 

 dolleana— FckL, " Symb. Myco.," p. 330. 



Exs.— FckL, "F. Rh./' No. 2195. 



From Sclerotium pustula on leaves of Castanea. 



Cup 8 lines broad ; stem about 1 inch long. It grows 

 separately or in little fascicles of three or four ; the stem 

 is slender, filiform, naked, of rather a firm consistence, 

 and of a deep red colour ; sometimes the lower part has 

 white hairs, but they evidently depend on excess of 

 moisture. It is at first only a simple thread, straight or 

 crooked ; later on the summit swells — it then resembles 

 a little pin ; finally, it forms a small flat cup, reddish, 

 with a thin, regular margin, sometimes entirely expanded, 

 and even decurved. The hymenium is a little less 

 coloured than the cup, and composed of very small asci, 

 which enclose eight elliptic, simple, transparent sporidia ; 

 no paraphyses were seen. It is most closely related to 

 Peziza swbulipes (Bulliard), having the same colour, but 

 irom which it differs by its habitat, size, and form of cup 

 (Lev.). 



Name — After A. P. de Canclolle. 



Batheaston, near Bath (Mr. C. E. Broome, under a 

 bell-glass). Whitfield, near Hereford ! Shelton Rough, 

 near Shrewsbury ! 



