towa Dis« iimvi i:tks 



49 



Plants stipitate, 2 to 4 cm. high by 1 to 2 cm. broad; pileus 

 globose or spreading, smooth, dark aeruginous-green ; stem long, 

 flattened or twisted, lighter colored than the pileus, yellowish or 

 slightly greenish, covered with minute hair-like structures or 

 nearly smooth ; asci clavate, 8-spored ; spores guttulate and 

 granular within, 20 by 5/x; paraphyses filiform. 



On soil in woods among leaves, summer and fall, Iowa City. 



The pileus in this species is very dark green and in some cases 

 so dark as to appear almost black and contrasts strongly with 

 the lighter colored stem. The plants seem to grow for the most 

 part solitary. 



Leotia lubrica (Scop.) Pers., Syn. Fung. 613. 1801. 



Plate 2, f. i. 



Elvela lubrica Scop., PI. Cam. 2 : 477. 1772. 



Plants growing in cespitose clusters, stem and pileus more or 

 less irregular in form and appearing tremulous and rather soft; 

 pileus irregular, convolute, at first golden-yellow becoming 

 brownish to greenish when dry, stem and pileus when fresh of 

 nearly the same color ; asci cylindrical, 8-spored ; spores elliptical 

 to fusoid, 25 by 8/x; paraphyses filiform. 



In woods on soil among leaves, Iowa City. 



The specimens described here under this name Avere decidedly 

 •different in color and in general appearance from the preceding 

 species. There was no trace of green in the fresh specimens the 

 color resembling that of Spathularia clavata, but as the speci- 

 mens dried they assumed more or less of a green color and those 

 placed in alcohol became quite decidedly green in color. The 

 stems of pileus of this species are much more irregular than 

 those of the preceding species in the specimens observed by us. 



FAMILY 2. HELVELLACE^L 



Plants fleshy, separated into stem and pileus; stem sharply 

 distinguished from the receptacle, for the most part hollow, frag- 

 ile ; receptacle pileate, covered outside with the hymenium, which 

 is always exposed, composed of asci and well developed paraphy- 

 ses; asci operculate; spores elliptical, hyaline or faintly yellow- 

 ish. 



