^d MINNESOTA ROTANICAL STUDIES. 



repand, irregular, thin, delicate, 1-3 cm. diameter; hymenium even, 

 lavender ; margin entire, wavy or lobed ; spores elliptical, very ob- 

 tuse, smooth, hyaline, 2 small guttulae, 12-14x6-7 mic. ; para- 

 physes filiform not clavate, up to 2 mic. wide, straight. 



On damp rotten wood: Crow Wing, July 1904, Hone 419. 



This is very variable in form and delicate in texture and color, 

 which is a beautiful lavender. 



Plates: Cooke, IMycogr. pi. 97. fig. 349; Cooke, Grevillca 7: 75. 

 pi. 97. fig. I. 



2. Plicaria repanda (Wahlenbg.) Rehm, Raben. Krypt. Fl. 1:3:1007. 



1896. (Plate II.) 



Peziza repanda Wahlenbg. Flora Suecica. Upsaliae. 466. 1824- 

 1826. 



Disciiia repanda Sacc. Syll. Fung. 8: 100. 1889. 



Gregarious, caespitose or scattered, subsessile, contracted and 

 folded at point of attachment into short, plicate, stout stipe-like 

 base, often rooting, waxy-fieshy, brittle, first hemispherical, almost 

 closed, becoming saucer-shaped and finely flattened ; margin often 

 lepand, split, wavy, somewhat crenuate ; hymenium watery to 

 light brown, becoming dark brown with age, wrinkled, up to 4.5 

 inches in diameter; exterior lighter brown to white, farinaceous 

 to pruinose ; spores elliptical, obtuse, hyaline, smooth, continuous, 

 eguttulate or 2 small guttulae, 14-18x8-9 mic; paraphyses fili- 

 form, septate, to 3 mic. wide at apex, scarce. 



Growing on rotten wood and water soaked logs of maple, birch, 

 etc. June 1876, Johnson 545 (not preserved) ; St. Louis. July 1886, 

 Hoi way 258 ; Chisago, June 1899, Freeman 443 ; Wright, May and 

 June 1900, Freeman 6-20, 683 ; Hennepin, Oct. 1900, Butters 56, 

 57; Becker, Aug. 1901, Freeman 1055; Becker, Aug. 1902, Free- 

 man ; Hennepin, ]May 1903, Hone ; Cook, Aug. 1903, Freeman & 

 Ballard 74; Hennepin, May 1904, Hibbard 66; Hennepin, May 

 1904, Hone 351, 1906, 804. 



Exsiccati: Sydow. Mycoth. IMarch. 572: Plates: Cooke, Mycogr. 

 pi. 62. fig- 240; Greville, Scott. Crypto. Fl. i. pi. 59. 



3. Plicaria muralis (Sow.) Rehm, Raben. Kr3rpt. Fl. 1:3:1006. 1896. 

 Pecica muralis Sow., Eng. Fung. tab. 251. 1803. 



Geopyxis muralis Sacc. Syll. Fung. 8: 72. 1889. 

 Peziza varia (Hedw.) Fr. Bresadola, Fung. Tri. 2: 75. 1892. 

 Gregarious or single, shortly stipitate, first cupulate becoming 

 convex and then concave, revolute to repand, finally very brittle, 



