TKICnOGASTRES!. 303 



hark farinaceous, adnatc, covered ^itli more or less spiuulose 

 warts; flocci forming a sort of columella ; spores yellow, in- 

 clined to green. — Huss. i. t. 54. 



In meadowS;, etc. The commonest species of the genus, and 

 very variahle. 



7. L. pyriforme, Scha>ff. ; peridium membranaceous, per- 

 sistent, somewhat pyriform, umhonate ; bark innate, covered 

 with minute fugacious scales; columella conical, greenish- 

 yellow, as well as the spores. — Huss. i. t. 70 ; Grev. t. 304. 



On decayed stumps, etc. Common. Root white, branched, 

 creeping. 



67. SCLERODERMA, P. 



Peridium firm, with an innate bark, bursting irregularly. 

 Flocci adhering on all sides to the peridium, and forming dis- 

 tinct veins in the central mass. Spores large, granulated. 



1 . S. vulgare, Fr. ; nearly sessile, irregular ; peiidiura 

 hard, corky, bursting by an indefinite aperture ; inner mass 

 bluish-black; spores dingy. (Plate 15, fig. 4, in part.) — 

 Huss. i. t. 17. 



On the borders of woods, etc. Common. Peridium va- 

 riously areolate, warty or scaly, sometimes nearly even. 



2. S. Bovista, Fr. ; nearly sessile, irregular; peridium thin, 

 soft, bursting irregularly; bark inclining to peel off; flocci 

 yellow ; spores dingy- olive. 



On sandy ground. Not common. Known by its thinner 

 peridium and yellow flocci. 



3. S. verrucosum, P. ; somewhat stipitate ; peridium 

 rounded, somewhat warty, thin above and brittle ; central 

 mass purple-black ; spores and flocci brown. — Grev. t. 48 ; 

 Huss. i. t. 17. 



On sandy ground, etc. Not uncommon. Care must be 



