_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 agaric, which is far down on the stem. _Infundibuliform_, funnel-shaped. _Innate_, adhering by growing into. _Inserted_, growing like a graft from its stock. _Involute_, edges rolled inward. _Laciniate_, divided into flaps. _Lactescent_, milk-bearing. _Lacunose_, pitted or having cavities. _Lamellae_, gills of mushrooms. _Lanceolate_, lance-shaped; tapering to both ends. _Lateral_, attached to one side. _Latex_, the viscid fluid contained in some mushrooms. _Laticiferous_, applied to the tubes conveying latex, as in the Lactarias. _Lepidote_, scurfy with minute scales. _Leucospore_, white spore. _Ligneous_, woody consistency. _Linear_, narrow and straight. _Linguiform_, tongue-shaped. AUTHORITIES CONSULTED. Fries, Saccardo, Kromholtz, Cooke and Berkeley, M. C. Cooke, Peck, Stevenson, Badham, Gillet, Boyer, Gibson, Roques, Hussey, Hay, Bel, Paulet and Leveille, Constantin and Dufour, Barla, Roze, W. G. Smith, Vittadini. STUDENT'S HAND-BOOK OF MUSHROOMS OF AMERICA EDIBLE AND POISONOUS. BY THOMAS TAYLOR, M. D. AUTHOR OF FOOD PRODUCTS, ETC. Published in Serial Form--=No. 2=--Price, 50c. per number.