12 Cinciniiali Society of Natural History. 



e. Cortex a smooth continuous layer, becoming areolate. 



11. Iv. KiMLLATUM, Peck. Peridiuiii depressed— globose 

 or broadly obovoid, plicate underneath with a slender fibrous 

 mycelium. Cortex at first a thin, smooth, continuous fibrillose 

 layer, gray or bluish-gray, .sometimes with a purplish tipge ; 

 this at length breaks into a network of fine lines or fissures, 

 gradually dri^ up into minute thin adnate .scales, and finally 

 falls away from the smooth grayish or purplish-brown .surface 

 of the inner peridium. Subgleba broad, but distinct, plane 

 above, occupying about a fourth part of the peridium;' mass 

 of spores and capillitiuni purplish-gray, then brownish-purple ; 

 the threads simple or scarcely branched, variable in thickness, 

 but always thinner than the spores ; spores globose, distinctly 

 warted, 6-7 mic. in diameter, often pedicellate. Plate I, Fig. 6. 



Growing on the ground in fields and open woods. New 

 Xox"^, Peck ; South Carolina, .-^//vV/.yfw / Ohio, Morgan; Wis- 

 consin, Trelease. Peridium %-il4 inches in diameter, scarce- 

 ly an inch in height. 



12. L. vp:l.\ti'.m, Vitt. Peridium globose or obovoid, 

 with a cord-like root. Cortex white or yellowish, at fir.st a 

 thickish continuous layer, then breaking up into circular or 

 irregular persistent patches with fimbriate margins. Subgleba 

 occupying about a third part of the peridium ; mass of spores 

 and capillitiuni oli\aceous, then purplish-brown ; the threads 

 branched, the main stem nearly as thick as the spores, the 

 branches long and tapering ; spores globose, distinctly warted. 

 5-6 mic. in diameter. 



Growing on the ground in woods. South Carolina, Ravenel. 

 Peridium 1-2 inclies in diameter. 



S2. OLIVK-SPORKD SERIES. Mass of spores and cai)illitium 

 immediately after deliquescence greenish-yellow, becoming 

 when mature pale or brownish olivaceous, sometimes pale 

 brown, rarely gray or argillaceous; the threads simple or 

 l)ranched, usually olivaceous in color by transmitted light, 

 with a thickness about equal to the diameter of the sjiores, in 

 a few sj)ecies h\aline and two to tliree times ;is thick as the 

 spores ; the s])ores globose, rarely oval or elliptic, even or 

 niinutel>- warted, mostly sessile or with only a minute pedicel, 

 rarely with a long persistent pedicel, often accompanied by 

 the short Inaline sterisrmata or their frairments. 



