GLOSSARY. 275 



HYBRIDIZATION The act of hybridizing. 



HYBRIDIZE To produce a crossing between two species. 



INDENTATION A notch or recess in the margin of a leaf. 



INDENTED Notched along the margin; cut on the edge into points, 

 like teeth. 



INFLORESCENCE The mode of arrangement of the flowers of plants. 



INTERNODE The space between two nodes or points of the stem from 

 which the leaves properly arise. 



INTERSTICES Spaces between closely set soils or rocks. 



INTRINSIC Real, inherent, not merely apparent or accidental. 



INULIN A substance found dissolved in the sap of the roots of many 

 composite and other plants. It is intermediate in nature between 

 starch and sugar. 



JURASSIC (Geol.) Of the age of the middle Mesozoic, named from 

 certain rocks in the Jura mountains. 



JUXTAPOSITION Being placed side by side with opposite parts corre- 

 sponding. 



KNIT United , joined, so as to grow together. Used as a noun, means 

 the grafts joined together; the union. 



LACUSTRINE DEPOSITS (Geol.) The deposits which have been ac- 

 cumulated in fresh water areas. 



LAMINATED STRATA (Geol.) Divided into thin layers. 



LANCEOLATE LEAF Rather narrow, tapering to a po ; nt at the apex. 



LANCINATED Torn; lacerated. 



LENTICLES (Bot.) Small, oval, or rounded spots upon the stem or 

 branches of a plant Small lens-shaped glands on the under face 

 of some leaves. 



LESION Change in the texture of a vegetable organ resulting from an 

 injury 



LIBER The inner bark of plants, lying next to the wood. 



LIGNEOUS (Bot.) Of the nature of, or resembling wood. 



LIGNIFICATION (Bot.) Change in the character of an herbaceous shoot 

 by which it becomes harder or woody. 



LIGNIFIED (Bot.) Converted into wood or into ligneous substance. 



LIMB, of a leaf (Bot.) The flat part of the leaf of any plant 



LITTORAL Bordering the seashore. 



LOAM A soil formed of a mixture of clay and sand with organic mat- 

 ter, to which its fertility is chiefly due. 



LOBATED ORLOBATE (Bot.) Having lobes. 



LOBE A rounded projection or division of a leaf. 



MARGIN, of a leaf The outer edge or border. 



MARL A mixed soil consisting of carbonate of lime, clay, and sand in 

 very variable proportions, and accordingly designated as calcar- 

 eous, clayey, or sandy. 



MEDULLARY RAYS (Bot.) The rays of cellular tissues seen in a trans- 

 verse section of exogenous wood which run from the pith to the 

 bark. 



METIS The offspring of the union of two varieties of the same species. 



METIZATION The act of producing a crossing between two varieties of 

 the same species. 



MIOCENE (Geol.) Middle division of the Tertiary. 



MORPHOLOGY The law of form or structure, independent of function. 



MUCRO (Bot.) A minute, abrupt point of a leaf. 



MYCELIUM (Bot.) The white threads or filamentous growth from 

 which a mushroom or fungus is developed; the so-called mush- 

 room spawn. 



