IOWA DISCOMYCETES <;,-, 



Lachnea paludosa (Boud.) Sacc, Syll. Fung. 11: 400. 1895. 



Plate 11, f. I. 



Ciliaria (Trichophcea) paludosa Bond., Bull. Soc. Myc France 

 10: 65. 1894. 



Plants thickly gregarious, 1 to 2 mm. in diameter, hemispher- 

 ical, becoming nearly plane, externally thickly clothed with long, 

 bristly, brown hairs; hymenium whitish or bluish-white; hairs 

 straight, rather sharp-pointed, mostly simple, reddish-brown, as 

 long as 500/*; asci cylindrical, 8-spored; spores 1-seriate, ellip- 

 tical, at first 2-guttulate, becoming tuberculose with very large 

 wart-like markings giving the spore a scalloped appearance; 

 tubercles 2 to 3/a in diameter, entire spore 22 to 25 by 15 to 17/x; 

 paraphyses enlarged at their apices. 



On naked soil in moist places, rather common. 



The species described here has often been met with in the 

 vicinity of Mt. Pleasant where the small plants grow in dense 

 masses on damp soil in shaded places. The species is an attract- 

 ive one although probably not very distinct in its external char- 

 acters. The bluish-white hymenium contrasts quite strongly 

 with the dark brown hairy exterior. The spore characters how- 

 ever are very distinct from any of the discomycetes studied in 

 this locality. The spores are covered with large wart-like mark- 

 ings which give them a decidedly scalloped appearance, the scal- 

 lops reaching a size of 2 to 3/x, much larger and more distinct 

 than in any of the other species studied. The original drawings 

 of the plants, hairs, and spores of this species correspond as 

 closely with the specimens studied in Iowa as they could have 

 done if drawn from this material, although the original descrip- 

 tion was drawn from material collected in France. 



In addition to the material collected at Mt. Pleasant, one speci- 

 men of this species has been sent in by Mr. S. C. Knupp from 

 Garrison, Iowa. 



Lachnea abundans (Karst.) Sacc, Syll. Fung. 8: 186. 1889. 



Plate 11, f. in. 



Peziza abundans Karst., Fauna Fl. Fenn. 10 : 124. 1869. 



Plants thickly crowded, small 1 to 2 mm. in diameter, exter- 



