Peziza 229 



reaching a diameter of 3-5 cm. and a depth of 2-3 cm. ; hymenium 

 concave, brown, of nearly the same shade as the outside of the 

 apothecium or a Httle darker; stem very short, stout, not ex- 

 ceeding 1 cm. in length and about 5 mm. thick, or often nearly 

 wanting, the substance rather tough, not shrinking much in 

 drying; asci cylindric or subcylindric, reaching a length of 200 ii 

 and a diameter of 12-15 m, 8-spored; spores ellipsoid, smooth, 

 usually containing two large oil-drops and numerous smaller 

 ones, 9-12 X 18-20//; paraphyses filiform, septate, enlarged 

 above, with numerous small knots or branches near their apices, 

 filled with coarse granules, reaching a diameter of 7 /i at their 

 tips. 



On the ground in coniferous woods. 



Type locality: Europe. 



Distribution: Colorado; also in Europe. 



Illustrations: Bond. Ic. Myc. pi. 333; Bres. Fungi Trid. 

 pi. J83, f. 2; Cooke, Mycographia pi. 57, f. 223; Gonnerm. & 

 Rab. Myc. Eu. 3: pi. 1, f. 7; FI. Dan. pi. 1853, f. 1; Payer, Bot. 

 Crypt. 89,/. 401. 



14. Peziza venosa Pers. Syn. Fung. 638. 1801. (excl. syn.) 

 (Plate 31.) 



Peziza reticulata Grev. Scot. Crypt. Fl. 156. 1825. 

 Plicaria reticulata Fuckel, Symb. Myc. 328. 1869. 

 AJeuria venosa Gill. Champ. Fr. Discom. 37. 1879. 

 Acetabula venosa Lamb. Fl. Myc. Belg. 2: 574. 1880. 

 Discina reticulata Sacc. Syll. Fung. 8: 100. 1889. 

 Discina venosa Sacc. Syll. Fung. 8: 104. 1889. 

 Peziza convoluta Peck, Bull. Torrey Club 30: 101. 1903. 

 Disciotis venosa Boud. Hist. Class. Discom. Eu. 42. 1907. 



Apothecia solitary or gregarious, substipitate with the base 

 lacunose, at first shallow cup-shaped, soon becoming depressed 

 and finally resting on the substratum with the extreme margin 

 slightly elevated, when young entire but often irregularly radially 

 splitting at maturity, externally whitish or dingy, slightly 

 pruinose or scurfy, reaching a diameter of 20 cm.; hymenium 

 reddish-brown, dried specimens often dusted over with the spores 

 which are rust-colored in mass, at first even, becoming convolute, 

 the convolutions either radial or giving a reticulate appearance; 

 asci cylindric or subcylindric clavate, reaching a diameter of 

 25 m; spores 1-seriate or slightly crowded together, ellipsoid, 

 smooth, pale-yellowish, 12-17 X 22-30 /i; paraphyses clinging 



