France, N. Patouillard, Monsieur Maingaud, L. Holland, J. Lagarde, 

 A. Acloque. 



Italy, O. Mattirolo. Austria, Jos. Rompel, A. Weidmann. 



Hungary, L. Hollos. Portugal, Rev. C. Torrend. 



Yellow forms Sweden, L. Romell. France, M. Barbier, N. Patouillard. 



Austria, J. Brunnthaler, Jos. Rompel. 



LYCOPERDON NIGRESCENS (Plate 47). Plant with 

 sterile base of large cells. Cortex of stiff black spines, 2 mm. long, in 

 clusters of four and surrounded at base by minute warts. The large 

 spines fall off leaving the surface reticulate with the minute warts. 

 Gleba olive-umber without purple. Spores medium, 4-5 mic. slightly 

 rough. Pedicels caducous. 



This name is based on a specimen in Persoon's herbarium. Per- 

 soon published it as a form of gemmatum which it can well be con- 

 sidered. Bulliard's plate 340 has warts of this nature but the general 

 plant has more the aspect of gemmatum. Lycoperdon nigrescens dif- 

 fers from gemmatum in the separate black warts not coalescing into 

 one, but I suspect all degrees of more or less coalescent warts occur, con- 

 necting the two forms. 



Specimens in our Collection. 



Sweden, L. Romell, Krik Haglund, C. G. Lloyd. 



Austria, A. Weidmann. Jos. Rompel. Scotland. Mary L. Miles. 



LYCOPERDON PIRIFORME (Plate 48). Plants usually 

 pear shaped, growing generally densely gregarious on old stumps, logs, 

 etc. Long, white, fibrous, mycelial strands penetrate the rotten wood 

 and are always a noticeable character of this plant. 



Cortex of minute, fasciculate spines, subpersistent, 

 and evenly spread over the peridium. Sometimes they 

 have a tendency to coalesce into nodules. Sterile base 

 usually well developed, sometimes almost absent, of 

 small cells. Columella prominent (fig. 83t). Gleba 

 olivaceous, then brown. Capillitium colored, long, 

 branched. Spores small 4 mic. globose, smooth'. 



This is one of the two very common species in all 

 temperate countries. It generally grows on logs and 

 stumps but occasionally is found on the ground, from 

 mycelium that I think remains where wood has rotted. 

 As it grows on logs it is generally caespitose and corn- 

 Fig. ss pressed. On the ground I have seen it more scattered 



and regular in form. 



Specimens in our Collection. 



Sweden, L. Romell. Belgium, Chas. Van Bambeke. England Wm. L.W. Eyre. 

 Scotland, Mary L. Miles. Germany, Otto Jaap. Switzerland. B. Studer. 

 France, L. Holland. Austria, J. Brunnthaler, A. Weidmann. P. Magnus. 

 Hungary, L. Hollos. 



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