IOWA DISCOMYCETES 63 



LACHNEA Pers., Myc. Eu. 1 : 244. 1822. 



Plants fleshy or subfieshy, cup-shaped or plane, externally 

 clothed with a covering of sharp, rigid or soft, tiexuose hairs 

 which are usually brown but often hyaline; asci cylindrical or 

 clavate, usually 8-spored; spores elliptical to fusiform, hyaline; 

 paraphyses present slender or clavate. 



The genus is distinguished from Peziza by the presence of the 

 hairs with which the cups are clothed. The forms with hyaline 

 hairs are sometimes placed in a separate genus, Neotiella. 



Eleven species of the genus are here described one of which 

 has hyaline hairs. Probably many more occur in the state. 



KEY TO THE SPECIES. 



Hairs hyaline L. lojkoeana. 



Hairs colored, pale to dark brown. 

 Hymenium white or whitish. 



Plants large, more than 2 mm. in diameter. 



Plants 2 to 3 cm., spores spinulose. . . L. hemispherica. 



Plants less than 1 cm., spores smooth. . . L. dlbo-spadicea. 

 Plants small, less than 2 mm. in diameter. 



Spores tubereulose L. paludosa. 



Spores smooth L. dbundans. 



Hymenium red or yellow. 



Plants 1 cm. in diameter, hairs short. 

 Plants red, hairs rigid. 



Spores smooth or scarcely roughened. . L. scutellata. 



Spores spinulose L. hirta. 



Plants pale yellow, hairs flexuose. L. aurantiopsis. 



Plants 1 to 5 mm. in diameter. 



On dung, hairs often stellate L. stercorea. 



On rotten wood, hairs not stellate. . . L. setosa. 



On burnt ground L. melaloma. 



Lachnea lojkoeana Rehm, Rabenh. Krypt. Fl. 13 : 1045. 1896. 



Plate 8, f. ii. 



Peziza (Sarcoscypha) luteo-pallens Cooke, Mycogr. 85. 

 Neottiella luteopallens Sacc, Syll. Fung. 8: 191. 1889. 



Cups, sessile, at first hemispherical, then expanded, pale 

 orange, 4 to 5 mm. in diameter, externally clothed with hyaline, 

 septate hairs, which are often more or less rigid; asci cylindrical, 



