Sepultaria 151 



slightly elevated as they mature, reaching a diameter of 4 cm., 

 regular in form or becoming very much contorted from mutual 

 pressure, clothed with hairs which extend into the substratum, 

 binding the surrounding soil to the outside of the apothecium; 

 hymenium deeply concave, nearly smooth, almost white; hairs 

 fiexuous, septate, brown, and of nearly uniform thickness through- 

 out their entire length ; asci subcylindric above, tapering gradually 

 below into a stem-like base, reaching a length of 250-300 m and 

 a diameter of 20-22 /x; spores 1-seriate, short-ellipsoid or sub- 

 globose, at first containing one small oil-drop which gradually 

 enlarges until it nearly fills the spore, about 18-20 X 20-22 /x; 

 paraphyses stout, gradually enlarged above, where they reach a 

 diameter of 4-6 n, filled with numerous vacuoles or oil-drops, 

 hyaline. 



On bare ground. 



Type locality: Albuquerque, New Mexico. 



Distribution: Known only from the type locality. 



Illustration: Mycologia 7: pi. 161. 



3. Sepultaria arenosa (Fuckel) Boud. Hist. Class. Discom. Eu. 



59. 1907. 



Peziza arenosa Fuckel, Fung. Rhen. 1212. 1865; Hedwigia 5: LS. 1866. 



Humaria arenosa Fuckel, Symb. Myc. 321. 1869. 



Lachnea arenosa Sacc. Syll. Fung. 8: 167. 1889. 



Scutellinia arenosa Kuntze, Rev. Gen. PI. 2: 869. 1891. 



?Sepultaria grisea Clements, Bot. Surv. Nebr. 4: 13. 1896. 



?Lachnea grisea Sacc. & Sydow in Sacc. Syll. Fung. 14: 756. 1899. 



Sarcosphaera arenosa Lindau in E. & P. Nat. Pfl. 1': 182. 1897. 



Apothecia scattered, sessile and partially immersed in the 

 ground, finally becoming subsuperficial, cup-shaped or occa- 

 sionally subscutellate, reaching a diameter of 1 cm., the margin 

 entire or splitting, externally clothed with hairs which are often 

 tufted; hymenium white or whitish; hairs flexuous or crooked^ 

 more rarely straight and subrigid on the exposed parts, often 

 swollen at the base, reaching a length of 200 m and a diameter 

 of 9 M, the hairs on the lower part of the cup giving rise to rhizoid- 

 like hyphae which extend into the surrounding soil; asci sub- 

 cylindric above, reaching a length of 200-225 m and a diameter 

 of 15-18 m; spores 1-seriate or partially 2-seriate, ellipsoid, the 

 ends slightly narrowed, usually containing two oil-drops, 13-18 

 X 23-25 M, smooth; paraphyses gradually enlarged above, where 

 they reach a diameter of 7-9 //. 



