Appendix I 383 



Fiber. Any fine thread-like substance, as the wood fibers of stems, 

 cotton fiber, etc. 



Fibro-vascular Bundle. The bundles of wood fibers and water- 

 conducting vessels in the stems and leaves of plants. 



Flocculate. To make granular by the union of fine particles into 

 aggregates. 



Floral Envelope. The collective term for the calyx and corolla. 



Fodder. Any coarse dry food for animals. 



Forage. Plants fed to animals in their natural condition; or merely 

 dried, i. e., without preparation. 



Formalin. A solution in water of the gas known as formaldehyde. 

 It is used to destroy bacteria, fungi, etc. 



Function. The particular use of any organ or part. 



Fungicide. Substances used to kill fungi, as compounds of copper. 



Geology. The science that deals with the formation and properties 

 of the earth. 



Germ. See Microbe; bacteria. Also applied to the embryo of seeds, 

 as in corn. 



Germinate. To sprout; to grow from a seed or spore. 



Girdle. To make a cut or groove around a tree or branch. 



Glucose. A kind of sugar, very commcn in plants. The sugar 

 from grapes is glucose, but the sugar from cane and beets 

 is not. Glucose is formed from starch in the manufacture of 

 syrups. 



Gluten. A form of protein found in plants. 



Grafting. The practice of inserting a cion into a plant or root that 

 it may grow. 



Growth. The increase in size or substance of a plant or animal. 



Gypsum. Native form of Plaster of Paris; sulphate of lime. 



Herbivorous. Feeding on plants. 



Heredity. The phenomenon noted in the resemblance of offspring 

 to parents. 



Hibernating. Passing the winter or dormant season in an inactive 

 or torpid state in confined quarters, said of animals. 



Hock. The joint in the hind legs of quadrupeds corresponding to 

 the heel of man. 



Horticulture. Pertaining to the growing of fruits, vegetables, flow- 

 ers, and other ornamental plants. 



Host. The plant or animal upon which a fungus or insect lives. 



