Patella 179 



Apothecia gregarious, sessile, at first globose, becoming con- 

 cave-hemispheric, finally almost entirely discoid, reaching a 

 diameter of 6 mm., externally clothed with dense covering of 

 hairs when young, the hairs appearing more scant at maturity; 

 hymenium concave or plane, whitish or grayish; hairs often 

 swollen at the base, tapering into a sharp-pointed apex, rather 

 closely septate, pale-brown, reaching a length of 350 fj. but often 

 much shorter, and a diameter of 12 n; asci cylindric or sub- 

 cylindric, gradually tapering below into a stem-like base, reaching 

 a length of 235 fx and a diameter of 10 /x; spores 1-seriate, ellipsoid, 

 the ends slightly narrowed, containing one or two oil-drops, 

 9-12 X 14-20 M, smooth, hyaline; paraphyses straight, very 

 slightly enlarged at their apices, reaching a diameter of 3 fx. 



On the ground in shady places, often among mosses. 



Type locality: Europe. 



Distribution: New York to Nebraska; also in Europe. 



Illustrations: Cooke, Mycographia pi. 36, f. 141 and pi. 

 113, f. 404; Boud. Ic. Myc. pi. 365; Gill. Champ. Fr. Discom. 

 (suites) ; Pat. Tab. Fung. /. 171. 



32. Patella pygmaea (Clements) Seaver, comb. nov. 



Sepultaria pygmaea Clements, Bot. Surv. Nebr. 4: 14. 1896. 

 Lachnea pygmaea Sacc. & Sydow in Sacc. Syll. Fung. 14: 755. 1899. 



Apothecia gregarious, at first closed and subglobose, becoming 

 scutellate to subdiscoid, reaching a diameter of 0.5-0.75 mm. or 

 rarely as large as 1 mm., externally clothed with hairs; hymenium 

 plane or concave, gray, becoming slightly brownish when old; 

 hairs rigid, the ends blunt or becoming acute, septate, brown, 

 reaching a length of 175-250 /x and a diameter of 12.5 /x; asci 

 cylindric or subcylindric; spores ellipsoid, smooth, hyaline, 

 7 X 12 m; paraphyses numerous, filiform. 



On rich ground among filaments of Lyngbya. 



Type locality: Otawaine Woods, Lancaster county, Ne- 

 braska. 



Distribution: Known only from the type locality. 



Doubtful and Excluded Species 



Lachnea vitellina (Pers.) Sacc. Syll. Fung. 8: 179. 1889; Peziza vitellina 

 Pers. Myc. Eu. 1: 257. 1822. Specimens distributed under this name in 

 N. Am. Fungi Z910 are Patella setosa (Nees) Seaver. 



Lachnea crispata (Berk. & Curt.) Sacc. Syll. Fung. 8: 169. 1889; Peziza 

 crispata Berk. & Curt.; Berk. Jour. Linn. Soc. 10: 367. 1868. No specimen 

 of this species has been and its identity is uncertain. 



