HUMARINA 139 



first smooth and containing one oil-drop about half the diameter 

 of the spore or rarely with two, 8-10 X 13-20 /^i, becoming 

 delicately sculptured at maturity; spore-sculpturing consisting 

 of minute warts or very short irregular ridges, often with a 

 minute apiculus at each end; paraphyses slender and often 

 adhering together at their apices, purplish. 



On damp soil. 



Type collected in Colorado by E. Bethel (1914?) (Herb. 

 The New York Botanical Garden). 



Distribution: Known only from the type locality. 



31. Humarina hepatica (Batsch) Seaver, comb. nov. 



Peziza hepatica Batsch, Elench. Fung. Contin. 1: 199. 1786. 

 Aleuria hepatica Gill. Champ. Fr. Discom. 208. 1886. 

 Humaria hepatica Sacc. Syll. Fung. 8: 140. 1889. 

 Ascophanus hepaticus Boud. Hist. Class. Discom. Eu. 76. 1907. 



Apothecia gregarious or scattered, at first closed and sub- 

 globose, opening and becoming scutellate or subdiscoid, reaching 

 a diameter of 2-4 mm., externally reddish-brown or liver-colored 

 and minutely granular, the margin becoming irregularly crenate; 

 hymenium concave or nearly plane, similar in color to the outside 

 of the apothecium; excipular cells rounded or polygonal and 

 reaching a diameter of 30-40 /x, the walls pale-brown or with a 

 purplish tinge; asci broad-cylindric, reaching a length of 200 ^u 

 and a diameter of 20 jjl, 8-spored; spores 1 -seriate or irregularly 

 crowded, ellipsoid, smooth, hyaline, rather thick-walled, 10-12 

 X 22-26 /x; paraphyses septate, enlarged at the septa, giving 

 them a knotted appearance, enlarged at their apices, where they 

 reach a diameter of 6 jjl, pale-brown or purplish. 



On soil and fire clay. 



Type locality: Europe. 



Distribution: Colorado; also in Europe. 



Illustrations: Batsch, Elench. Fung. Contin. 1: pi. 26, 

 f. 138; Ann. Mag. Nat. Hist. III. 15: pi. 15, f. 19; Cooke, 

 Mycographia pi. 22, f. 85; Pat. Tab. Anal. Fung./. 485. 



32. Humarina trachyderma (Ellis & Ev.) Seaver, comb. nov. 



?Peziza tapeina Cooke, Mycographia 157. 1877. 



?Peziza pertenids Cooke, Mycographia 157. (as synonym). 1877. 



Peziza trachyderma Ellis & Ev. Am. Nat. 31: 426. 1897. 



Humaria trachyderma Sacc. & Syd. in Sacc. Syll. Fung. 14: 752. 1899. 



Apothecia sessile, becoming shallow cup-shaped or nearly 

 plane, externally furfuraceous-verrucose, when fresh nearly the 



