382 GLOSSARY. 
Frost-hardy. Said of trees, the new growth of which is not easily 
killed by frost. 
Frost-tender. Said of trees, the new growth of which is easily 
killed by frost. 
Fruit. The seed-containing area derived from a single flower. 
Fungi. Plural of fungus. 
Fungous. Pertaining to fungi. 
Fungus. A flowerless plant devoid of chlorophyll and drawing 
its nourishment from living organisms or decayed organic 
matter. 
Genera. Plural of genus. 
Generic name. The name of the genus to which the plant be- 
longs, and which with the name of the species forms the 
scientific name of the plant. 
Genus. In botanical classification, a group of plants having sev- 
eral or many natural common resemblances; a division of 
a family. 
Germination. The act or process by which a seed or spore gives 
rise to a new and independent plant. 
Glabrous. Smooth, not pubescent. 
Glauber salts. Sodium sulphate. 
Glaucous. Covered with a fine white powder as that on a cab- 
bage leaf. 
Graftage. A system of propagation comprising all methods by 
which plants are grown on roots of other plants. 
Grafting. The operation of inserting a cion in a plant. 
Grafting Wax. A protective substance used in covering the 
junction of a graft with the stock, or for the covering of 
wounds. Bailey’s formula for a reliable wax:—Resin, four 
parts (by weight); beeswax, two parts; tallow, one part. 
Melt together and pour into a pail of cold water. Then 
grease the hands and pull the wax until it is nearly white. 
Hardy. Able to withstand a given climate. 
Heeling-in. ‘The operation and process of temporarily covering 
the roots of plants to preserve them until wanted for 
permanent planting. (Page 90.) 
Height classes, ‘The arrangement of trees into classes according 
to height. 
Herb. A plant not woody. 
