Germ-pore, a differentiated apical, usually thin-walled portion of the spore. See [Fig. 5], [p. 15].
Gill, the structure on which the reproductive tissue is borne in agarics, resembling plates.
Globose (of the spore), round in outline in all planes.
Glutinous (of the cap or stem), provided with a sticky jelly-like coating.
Heteromerous (of the cap and stem-flesh), with discrete nests of rounded cells in a background of filamentous cells: characterises members of the Russulaceae. See [Fig. 10B], [p. 17].
Homoiomerous (of the cap and stem-flesh), not sharply differentiated into two types of cells, although some may be swollen: characterises agarics other than members of the Russulaceae. See [Fig. 10A], [p. 17].
Hygrophanous (of the cap), translucent when wet, opaque and often paler on drying.
Hymenium, the superficial layer of cells in which basidia occur. See [Fig. 9A-D], [p. 17].
Hyaline, appearing as if clear glass.
Hypogeous, growing under ground.