New British Fungi. E. M. Wakefield. 133 



coarsely tuberculate spores. A solution of potassium hydrate 

 dissolves some of the colouring matter from the sections. The 

 specimen agrees with an authentic specimen from Fries in the 

 Kew Herbarium. 



Hypochnus isahcllinus Fr., Obs. Myc. ii, 1818, p. 281. 

 Coriicimn isahellimim Fr., Hym. Eur. 1874, p. 660. 

 Hypochnus argillaceits Karst., in Soc. pro Faun, et Flor. 

 Fenn. Med. vi, 1881, p. 13. 



Effused, thin, following the inequalities of the matrix, 

 inseparable, tomentose, pale Isabella colour (of Ridgway). 

 Hymenium loose, pulverulent. Hyphae pale isabelline, branched 

 at right angles, septate, without clamp-connections, io-i4jLt 

 in diameter. Basidia with four sterigmata. Spores isabelline, 

 globose, aculeate, with fairly long spines (2-2-5 ju.), spore-body 

 7-9/x in diameter. 



Hab. On the inner side of decaying bark, Staynor Wood, 

 near Selby, Sept. 1918. 



Among the hitherto recorded British species of Hypochnus 

 this one is easily distinguished by its isabelline colour. An 

 American species, H. pannosus Burt ( == Zygodesmus pannosvis 

 Berk. & Curt.) resembles it in habit and colour, but is dis- 

 tinguished by the smaller hyphae with clamp-connections. 



Galadinia Howsei Bond., Discomyc. d'Eur., 1907, p. 48. 



Peziza Howsei Boud., in Bull. Soc. Bot. Fr., xxvi, 1879, 

 p. Ixxv, tab. 3, fig. 3 ; Bres., Fung. Trid. i, p. 91, tab. 

 103. 



Ascophore sessile, cup-shaped, 3 cm. wide, whitish-tomentose 

 at the base, smooth or slightly furfuraceous towards the margin; 

 hymenium violet, tinged with yellow. Paraphyses septate, 

 slightly clavate, 5-6/x wide above, contents guttulate, more or 

 less tinged violet. Asci cylindrical, 8-spored, apex operculate 

 and becoming blue with iodine, 200-300/x x 12--14/X. Spores 

 almost hyaline or slightly tinted yellowish, narrowly oblong- 

 elliptic, epispore granular, 20-22ju, x 8-9/x, 2-guttulate. 



Hah. On the ground, Byram Park, Yorks. Coll. C. Rea, 

 Sept. 1918. 



This species closely resembles G. anipeliiin Boud. and 

 G. praetervisa (Bres.) Boud. in colour, but is distinguished from 

 both by its spores. In G. ampelina the spores are smooth, 

 while in G. praetervisa they are considerably smaller than in 

 the present species. The spore-size in the present specimen 

 is slightly greater than that given in the original description 

 (17-19/X X 7-8^). 



