114 
IOWA ACADEMY OF SCIENCES. 
56. llyparohiiis sexdecimsporus (Cr.) Sacc. 
Plants very small, whitish; asci 16-spored. On cow dung. 
Various collections, 1903-4. Iowa City. Not uncommon. 
57. Ryparohius crustaceiis (Fckl.) Rehm. 
Plants similar in external appearance to preceding but 
asci 64-spored. On cow dung. Iowa City. Not uncom- 
mon. 
58. Ilyparohius pachyascus Rehm. 
Very minute; asci large, many-spored. On cow dung. 
Not common. 
59. Saccoholus kerverni (Crouan) Boud. 
Plants small, golden yellow when fresh, black when dry. 
On cow dung. Various collections, Iowa City, 1903-4; — 
Decorah, Iowa, May, 1886, E. W. D. Holway. Common in 
moist places. 
60. Ascoholiis furfuraceus Pers. 
Plants light yellowish, as large as 5 mm. in diameter 
On cow dung. Iowa City, 1903-5; — Decorah, Iowa, April 25, 
1886, E. W. D. Holway. Spring, summer and autumn. 
Very common. 
61. Ascoholus immersus Pers. 
Plants very small; asci and sporidia very large. On cow 
dung, spring and summer. Various collections, Iowa City 
1903-4; March, 1905. Not uncommon. 
62. Ascoholus glaber Pers.* 
Plants very small; sporidia much smaller than in preced- 
ing. Grown in culture. Iowa City. Rare. 
63. Ascoholus atro-fuscus Phil. & Plow. 
Plants as large as 6 mm. in diameter, brownish when 
fresh, w^hen dry hymenium almost black. One collection 
was made in October, 1903. During the summer of 1904 
this species was found to be very common on burnt places. 
It is easily distinguished by its habitat, its brownish color, 
and the purple, verrucose sporidia. 
64. Ascoholus viridis Curr. 
Plants rather small, about 3 mm. in diameter, yellowish 
brown or greenish. The sporidia are covered with net-like 
reticulations. On mud flats near the Iowa river. Summer 
