s as of mold.

_Floccose_, downy.

_Flocculose_, covered with flocci.

_Foveolate_, pitted.

_Free_, in relation to the gills of mushrooms reaching the stem but not
attached to it.

_Fringe_, a lacerated marginal membrane.

_Fructification_, reproducing power of a plant.

_Fugacious_, disappearing rapidly.

_Furcate_, forked.

_Fuliginous_, blackish or sooty.

_Fulvous_, tawny; a rather indefinite brownish yellow.

_Furfuraceous_, with branny scales or scurf.

_Fuscous_, brownish, but dingy; not pure.

_Fusiform_, spindle-shaped.

_Genera_, plural of genus.

_Generic_, pertaining to a genus.

_Genus_, a group of species having one or more characteristics in
common; the union of several genera presenting the same features
constitutes a tribe.

_Gibbous_, in the form of a swelling; of a pileus which is more convex
or tumid on one side than the other.

_Gills_, vertical plates radiating from the stem on the under surface of
the mushroom cap.

_Glabrous_, smooth.

_Glaucescent_, inclining to glaucose.

_Glaucose_, covered with a whitish-green bloom or fine white powder
easily rubbed off.

_Globose_, nearly spherical.

_Granular_, with roughened surface.

_Greaved_, of a stem clothed like a leg in armor.

_Gregarious_, of mushrooms not solitary but growing in numbers in the
same locality.

_Grumous_, clotted; composed of little clustered grains.

_Guttate_, marked with tear-like spots.

_Gyrose_, circling in wavy folds.

_Habitat_, natural abode of a vegetable species.

_Hepatic_, pertaining to the liver; hence, liver-colored.

_Heterogeneous_, of a structure which is different from adjacent ones.

_Hibernal_, pertaining to winter.

_Hirsute_, hairy.

_Homogeneous_, similar in structure.

_Hyaline_, transparent.

_Hygrophanous_, looking watery when moist and opaque when dry.

_Hymenium_, the fructifying surface of the mushroom; the part on which
the spores are borne.

_Hymenophore_, the structure which bears the hymenium.

_Hypogaeous_, subterranean.

_Identification_, the determination of the species to which a given
specimen belongs.

_Identify_, to determine the systematic name of a specimen.

_Imbricate_, overlapped like tiles.

_Immarginate_, without a distinct border.

_Immersed_, sunk into the matrix.

_Incised_, cut out; cut away.

_Indehiscent_, not opening.

_Indigenous_, native of a country.

_Inferior_, growing below; of the ring of an agar