892 THE AGARICACEAE OF MICHIGAN 



PALLID, (color), of an indefinite pale or whitish appearance. 

 PAPILLA, a small, nipple-shaped elevation. 



PAPILLATE, (of pileus or spores), provided on surface with 

 papillae. 



PARALLEL, (of trama of gills), in section the hyphae lie continu- 

 ously side by side. 



PARASITE, an organism living upon another live organism and 

 deriving food from it, with or without fatal effect. 



PARTIAL VEIL, the inner veil, extending from the margin of the 

 pileus to the stem. See page 4. 



PATCHES, (of scales or remnants of the universal veil), flat, 

 closely applied pieces. 



PECTINATE, (of margin of pileus), resembling the teeth of a comb. 



PEDICEL, (of cystidia) a slender stalk. 



PELLICLE, same as cuticle, sometimes thought of as thinner and 

 more definite. 



PELLICULOSE, provided with a pellicle. 



PELLUCID, translucent. 



PELLUCID-STRIATE, (of pileus), when as the result of the thin- 

 ness of the pileus the gills become visible thru it and appear as 

 striae. 



PENTAGONAL, (of spores), angular and five-sided. 

 PERIPHERY, the outer boundary or surface. 



PERONATE, (of stem), booted; sheathed by the volva or universal 

 veil. 



PERONATE-SCALY, (of stem), when the sheath of a peronate 

 stem is broken up and the parts persist. 



PERSISTENT, retaining its place, shape or structure, not dis- 

 appearing. 



PETALOID, (of pileus), shaped like the petal of a flower, narrowed 



somewhat at base. 

 PHYLOGENETIC, pertaining to phylogeny. 

 PHYLOGENY, the history of the evolution of the group or race to 



which a species belongs. 

 PILEATE, possessing a pileus. 

 PILEI, the plural of pileus. 



PILEUS, the cap or that structure of an Agaric which bears the 



gills on its under side. 



LOSE, (of pileus), covered with long, soft, hairy filaments. 

 PIPSHAPED, (of spores), shape of an apple seed. 

 PITTED, (of pileus or stem), similar to lacunose; with little de- 

 pressions. 



