Glossary 



PI'SIFORM (pisum, a pea, -\-forma, form), pea-shaped. 



PITH (pit, marrow, kernel), central stuffing in some stems. 



PITS (puteus, a well, a pit), depressions in tubes or cells resembling pores; applied 



also to hollow depressions in the surface of the cap of the Morell. 

 PIT'TED, covered with pits or small depressions. 



PLACEN'TIFORM (placenta, placenta, + forma, form), in the form of a thickened cir- 

 cular disk depressed in the middle, both above and below. 

 PLANE, having a flat surface. 



PLI'CATE (plicatus, fold, bend), folded like a fan; plaited. 

 PLUM'BEOUS (plumbeus), a deep, bluish-gray color like tarnished lead; lead-color. 



(Lamp-black + intense blue + white.) 



PLU / MOSE, PLU'MOUS (plumosus, full of feathers or down), feathery or feathered. 

 PLURI-, prefixed has the significance of "many." 

 PNEUMOGAS'TRIC (Gr. lung, + stomach), pertaining to the lungs and stomach, or 



to the functions of respiration and digestion ; in anatomy noting several nervous 



structures. 



POC'ULIFORM (poculum, cup, -\-forma, form), cup-shaped. 

 POLY-, a prefix meaning "many." 

 POLYG'ONAL, having many angles. 

 POLYMORPHISM, POL'YMORPHY, existence in or exhibition by the same species or 



group of different types of structure. 

 POLYMORPHOUS (Gr. multiform, manifold), varying much in appearance, form or 



structure in the same species or group; characterized by polymorphism. 



POLYS'TICHOUS (Gr. many, -\ row, line), arranged in many rows. 



PORE (porus, a pore), in Pyrenomycetes same as ostiole; in Hymenomycetes same 



as tubulus or tube, as the tubules of Polypores ; also the mouth of a tubulus. 

 PO'RIFORM (porus, a pore; forma, form), in the form of pores. 

 PO'ROSE, PO'ROUS (porosus, <porws, a pore), furnished with pores or tubules ; pierced 



with small holes. 



PORPHYROS'POR^: ( Gr. purple, + seed), a group of fungi having purple spores. 

 PORRECT' (porrectus, pp. of porrigere, stretch out before, reach out, extend, <por, 



forth, + regere, stretch, direct), extended forward; stretched forth horizontally. 

 POSTE'RIOR (posterior, compar. of posterns, coming after, etc.), denotes a position or 



under side of the pileus adjacent to the stem ; the end of a lamella next the stem 



is the posterior end. 

 PREMORSE' (premorsus, pp. of premordere, bite in front or at the end), having the 



apex irregularly truncate as if bitten or broken off. 

 PRIMOR'DIAL (primordium, pi. primordia, origin, beginning), first formed; existing 



from the beginning. 

 PRIMOR'DIUM (L. commonly in pi. primordia, the beginnings, <^primus, first, + 



ordiri, begin), first beginning of any structure. 

 PRIMROSE-YELLOW (primulaceo-flavus*) , a very delicate pale-yellow, of a more creamy 



tint than sulphur-yellow. (Pale cadmium + white.) 

 PROC'ESS, an outgrowth or projection from a surface. 

 PROCUMBENT (procumben(t-}s, ppr. of procitmbere, fall forward or prostrate, <J>'0, 



forward, + cumbere, cubare, lie), prostrate; unable to support itself, therefore ly- 

 ing on the ground. 

 PROJECTING, the anterior end jutting out beyond the margin. 



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