154 The North American Cup-Fungi 



24. PERROTIA Boud. Bull. Soc. Myc. Fr. 17: 24. 1901. 



Apothecia minute, sessile, clothed with hairs, the general 

 appearance being like that of Lachnella except that the asci are 

 operculate ; asci clavate, 8-spored ; spores allantoid, at first simple, 

 later apparently 1-septate, or pseudoseptate ; paraphyses present. 



Type species, Peziza flammea Alb. & Schw. 



1. Perrotia flammea (Alb. «& Schw.) Boud. Hist. Class. Discom. 

 Eu. 66. 1907. 



Peziza flammea Alb. & Schw. Consp. Fung. 319. 1805. 

 ?Peziza cinnabarina Schw. Trans. Am. Phil. Soc. II. 4: 173. 1832. 

 ?Peziza maculincola Schw. Trans. Am. Phil. Soc. II. 4: 174. 1832. 

 Lachnella flammea Fries, Summa Veg. Scand. 365. 1849. 

 Helotium flammeum Karst. Myc. Fenn. 1: 157. 1871. 

 ?Peziza Meleagris Ellis, Bull. Torrey Club 8: 123. 1881. 

 ?Lachnella cinnabarina Sacc. Syll. Fung. 8: 399. 1889. 

 ?Lachnella incarnescens Sacc. Syll. Fung. 8: 399. 1889. 

 ?Lachnella maculincola Sacc. Syll. Fung. 8: 400. 1889. 

 Dasyscypha allantospora Earle in Greene, PI. Baker. 2: 5. 1901. 

 Lachnella rhoina Eaile in Greene, PI. Baker. 2: 6. 1901. 



Apothecia gregarious or crowded, at first subglobose, with the 

 margin strongly incurved, becoming scutellate, externally clothed 

 with cinnabar-red hairs which give to the whole apothecium a 

 brick-red color, varying in old specimens to dark-brown, reaching 

 a diameter of 2 mm.; hymenium concave, reddish, much paler 

 than the outside of the apothecium; hairs flexuous, of nearly 

 uniform thickness throughout their entire length, reaching a 

 diameter of 3-5 /x, sparingly septate, externally densely covered 

 with coarse red granules; asci reaching a length of 100 /x and a 

 diameter of 10-12 ^u, gradually tapering below; spores 2-seriate 

 or irregularly crowded, hyaline, reaching a length of 20 ix and a 

 diameter of 3-4 m; paraphyses rather stout, reaching a thickness 

 of 4 jx. 



On dead branches and twigs of deciduous and coniferous 

 trees. 



Type locality: Europe. 



Distribution: Pennsylvania to Montana and Colorado; also 

 in Europe. 



Illustrations: Alb. & Schw. Consp. Fung. pi. 1, J. 6; Boud. 

 Ic. Myc. pi. 321; E. & P. Nat. Pfl. 1^: 202, pi. 159, F-G; Rab. 

 Krypt.-Fl. P:828,/. 1-5. 



ExsiccATi: N. Am. Fungi 2323; Fungi Columb. 1221, 2733. 



