236 The North American Cup-Fungi 



at first clothed with a transient mycelium, at length naked, 

 reaching a diameter of 6 cm. and a depth of 8-10 cm. when 

 expanded, extended below into a short stem-like base; hymenium 

 at first pallid, becoming bluish or violaceous; asci cylindric or 

 subcylindric, reaching a length of about 200 n and a diameter 

 of 1(>-12 /jl; spores 1 -seriate, smooth or very minutely roughened, 

 usually containing two oil-drops, 8-9 X 15-18^1; paraphyses 

 enlarged and branched above, filled with bluish coloring matter 

 when fresh, the color fading when dry. 



In coniferous woods, on or under humus. 



Type locality: Europe. 



Distribution: British Columbia to Michigan and New York; 

 also in Europe and North Africa. 



Illustrations: Bond. Ic. Myc. pi. 302; Cooke, Mycographia 

 pi. 61; E. & P. Nat. Pfl. 1^: 181, /. 147, F-G; Fres. Beit. Myk. 

 pi. 9, f. 7-11; Gill. Champ. Fr. Discom. pi. 48; Gonnerm. & 

 Rab. Myc. Eu. Fez. pi. 3, f. 5; Inzenga, Fung. Sic. 2: pi. S, f. 4; 

 Jacq. Misc. Austr. 1: pi. 10; Jour. Bot. 7: pi. 98; Bull. Torrey 

 Club 45: pi. 3; Lloyd, Myc. Notes 56, /. 1255; Sitzber. Nat. 

 Ges. Isis. 1867: pi. 1. 



A most beautiful species but seldom collected. The only 

 freshly collected material examined was that collected by Mr. 

 Stewart H. Burnham in Washington county. New York. Recog- 

 nized by its semisubterranean habits and the splitting of the 

 apothecia. 



Family 2. ELVELACEAE 



Ascophores consisting of a distinct stem and pileus; pileus 

 bell-shaped, saddle-shaped, subglobose or entirely covering the 

 outside of the stem when it assumes a columnar form, the surface 

 of the hymenium even, lacunose or costate, the margin of the 

 pileus either free or partially to entirely attached to the stem; 

 stem very slender or stout, even, lacunose, or distinctly fluted, 

 naked or pubescent, usually hollow within ; asci cylindric or sub- 

 cylindric, 2-8-spored; spores ellipsoid, smooth or sculptured, 

 hyaline or faintly colored; paraphyses variable in form, hyaline 

 or slightly colored. 



Upper surface of the pileus costate. 



With a sterile stem and fertile head. 1. Morchella. 



Without stem and fertile to the base. 2. Durandiomyces. 



Upper surface of the pileus even, lacunose, or gyrose, not 

 costate. 



