406 



FUNGUS-FLORA. 



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, Sy 11. viii., n. 518; Eehm, 

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



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£/ 



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

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

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

 ment ; — Fig. 6, spore showing structure of episphore 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, 



