406 



FUNGUS-FLOKA. 



On whitewashed walls and on mortar. 



Distinguished by the minute, almost blood-red ascophore, 

 large elliptical spores, and habitat. 



Specimen collected at Pen-y-Gwryd, by Broome, and now 

 in Herb. Berk., Kew, accepted as typical. 



Humaria rutilans. Sacc., Syll. viii., n. 518; Rehm, 

 Krypt.-Flora, Disc., p. 960; figs. 1-4, p. 918. 



Humaria rutilans, Succ. Fig. 1, group of fungi, natural size ; Fig. 2, 

 sections, natural size ; Fig. 3, section of excipulum ; Fig. 4, ascus with 

 spores and paraphyees ; Fig. 5, free spores in various stages of develop- 

 ment ; Fig. 6, spore showing structure of c-pisphore at maturity. Figs. 

 3-5, X 400 ; fig. 6 x 800 (drawn from specimen named by Fries). 



Ascophore sessile, attached by a very short central point, 

 subglobose and closed at first, then expanding and becoming 

 quite plane, fleshy, margin entire, sometimes slightly raised, 

 at others somewhat drooping ; ^1 cm. across; disc orange- 

 red or sometimes almost crimson, externally paler and below 

 the margin very minutely downy ; excipulum parenchymatous, 



