LYCOPERDON. 33 



surrounded by a ring of small persistent warts that remain 

 after the spines have fallen away, dehiscing by a small 

 opening ; basal stratum, porous, convex ; mass of spores 

 dusky olive ; threads of capillitiurn branched, forming a 

 central loose columella ; spores globose, smooth, 4 p. 



Lycoperdon perlatum, Pers., Syn. 145 ; Mass., Mon. Gast., 

 p. 72, f. 31. 



In woods and thickets. Often springing in pairs from the 

 same base, 3-5 in. high, 1-2 in. across, stem often lacunose. 

 See note under L. gemmatum. 



Lycoperdon molle. Pers. 



Turbiuate, base broad, abrupt, peridium thin, furfuraceous, 

 becoming smooth, collapsing, dehiscing by a small, irregular 

 mouth ; sterile base well developed, spongy, margin well 

 defined; mass of spores olive; capillitium dense, threads 

 thick, walls thin collapsing ; spores globose, smooth, 4 //,. 



Lycoperdon inolle, Pers., JSyn. 150; Mass., Mon. Gast., p. 73, 

 f. 65. 



On the ground in woods. Yery soft and yielding, dilute 

 olive, li-2 in. high. 



Lycoperdon caelatum. Bull. 



Subglobose or depressed, contracted below into a more or 

 less elongated base, often with a long tapering root ; 

 peridium with rather large, scattered, conical warts, be- 

 coming smooth above, upper portion of peridium disappear- 

 ing; mass of spores olive with a lilac tinge; capillitium 

 dense, threads branched, disappearing ; sterile base compact, 

 rather convex ; spores globose, smooth, often with a long 

 pedicel, 4-5 p.. 



Lycoperdon caelatum, Berk., Outl., t. 20, f. 7 ; Cke., Hdbk., 

 n. 1084; Mass., Mon. Gast., p. 74, f. 58. 



Fields, roadsides, woods, &c. Globose or usually do- 

 pressed, 14 in. across; stem stout, length variable, often 

 almost absent. 



Lycoperdon bovista. Linn. 



Globose or depressed, often plicate at the base, sessile, 

 whitish, peridium thick, subtomentose, becoming smooth and 

 fragile, falling away above and leaving a wide opening; 

 mass of spores yellow, then olive ; capillitium compact ; 



