KEPOET OF THB STATE BOTANIST 221 



Fig. 3 A Hydnum; c the cap; t tho aculei or teeth; s the stem; mc the 



myeeliwn. 

 Figs. 4 to 8 Vertical sections of caps and the upper part of their stems 

 showing the relations of gills to stems. 



Gills free from the stem; stem hollow. 



Gills adnexed; stem stuffed. 



Gills adnate; stem solid. 



Gills emarginate, also adnate and having a decurrent tooth. 



Gills decurrent. 



A plant with its cap umbonate, also squamose, and its stem bulbous. 



A plant with its cap umbilicate, its gills decurrent and its stem equal. 



A basidium with its four spores. 



Ad aacus containing eight spores. 



PLATE 1. 



LYCOrERDON aiOANTEUY Batsch. 



Oiant Puff-ball. 



Fig. 1 An immature plant; about one-half the natural size. 

 " 2 A mature plant with its rind above breaking into fragments, falling 



away and exposing the dusty mass of spores; about half the 



natural size. 

 ' ' 3 Two fragments of filaments from the spore mass, magnified about 



400 diameters. 

 ' ' 4 Several spores, X 400. 



PLAIE 2. 



LYCOPERDON CYATHIFORME BOSC. 



Cup-shaped Puff-ball. 



Fig. 1 An immature plant. 



" 2 A full-grown plant with even surface. 



" 3 A full grown plant with the surface cracked into areas or broad 

 spot-like scales. 



" 4 A mature plant with the upper part of the rind bre;iking into frag- 

 ments, falling away and exposing the purplish spore mass. 



' ' 5 The ragged cup-shaped base of an old plant after the upper part of 

 the rind and the spore mass have been dispersed. 



' ' 6 Vertical section through an immature plant. 



' ' 7 Two fragments of filaments from the spore mass, X 400. 



' ' 8 Seven spores, X 400. 



PLATE 3. 



MOBCHELLA ESCULENTA Per*. 



Ccntimon Morel. 

 Fig. 1 A mature plant. 

 ' ' 2 Vertical section through the center of a mature plant. 

 " 3 A spore sack containing eight spores, X 400. 



