Paraphyses, sterile cells found among the reproductive cells of some plants.

Parasitic, growing on and deriving support from another plant.

Pectinate, toothed like a comb.

Peridium, the outer covering of a puffball, simple or double.

Perithecia, bottle-like receptacles containing asci.

Peronate, used when the stem has a distinct stocking-like coat.

Persistent, inclined to adhere firmly.

Pileate, having a cap or pileus.

Pileolus (pl. pileoli), a secondary pileus, arising from the primary one.

Pileus (pileus, a hat), the cap-like head of a fungus.

Pilose, covered with hairs, furry.

Pore, the opening of the tubes of a polyporus.

Pruinose, covered with a frost-like bloom.

p.u.b.escent, downy.

Pulverulent, covered with dust.

Pulvinate, cushion-shaped.

Putrescent, soon decaying.

Punctate, dotted with points.

Reflexed, bent backwards.

Reniform, kidney-shaped.

Repand, bent or turned up or back.

Resupinate, attached to the matrix by the back.

Reticulate, marked with cross-lines, like the meshes of a net.

Revolute, rolled backward or upward.

Rimose, cracked or full of clefts.

Rimulose, covered with small cracks.

Ring, a part of the veil adhering to the stem of Agarics.

Rubescent, tending to a red-color.

Rubiginous, rust-color.

Rufescent, reddish in color.

Rugose, wrinkled.

Rufous, brownish-red.

Sapid, agreeable to the taste.

Saprophyte, a plant that lives on decaying animal or vegetable matter.

Scrobiculate, marked with little pits or depressions.

Serrate, saw-toothed.

Sinuate, wavy margin of gills or sinus where they reach the stem.

Spathulate, in the form of a spathula.

Sp.a.w.n, the popular name for mycelium, used in growing mushrooms.

Spores, the reproductive bodies of mushrooms.

Sporoph.o.r.e, name given to the basidia.

Squamose, having scales.

Squamulose, covered with small scales.

Squarrose, rough with scales.

Stigmata, the slender supports of the spores.

Stipitate, having a stem.

Striate, streaked with lines.

Strigose, covered with lines sharp and rigid.

Strobiliform, pineapple-shaped.