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GLOSSARY. 



Abortion. Imperfect development or non-development of an organ. 



Abortive. That which is brought forth prematurely; coming to naught before it is completed. 



Achene. A small, hard, dry, 1-celled, 1-seeded fruit which does not open by valves. 



Acrid. Sharp or biting to the taste. 



Acuminate. Decidedly tapering at the end. 



Acute. Tapering at the end. 



Aesthetic. Pertaining to the beautiful. 



Afforesting. Turning ground into forest after being without a forest for a considerable length 



of time. 



Alluvial. Relating to the deposits of sand, clay, or gravel made by river action. 

 Alternate. Not opposite to each other, but scattered singly along the axis. 

 Ament, A peculiar, scaly, unisexual spike. 



Anther. The enlarged terminal part of a stamen which bears the pollen. 

 Apex. The tip or end of a bud or leaf, i. e. the part opposite the base. 

 Apical. Pertaining to the tip, end, or apex. 

 Appresscd. Lying tight or close against. 

 Arborescent. Tree-like in appearance, size, and growth. 

 Aromatic. Fragrant ; with a pleasing odor. 

 Astringent. Contracting; drawing, together ; binding. 

 Axil. The upper angle formed by a leaf or branch with the stem. 

 Axillary. Situate in an axil. 

 Axis. The central line of an organ ; a stem. 

 Bark. The outer covering of a trunk or branch. 

 Basal. Pertaining to or situated at base. 

 Berry. A fruit which is fleshy or pulpy throughout. 



Bisexual. Having both stamens and pistils, 1. e. male and female organs. 

 Bloom. A powdery or somewhat waxy substance easily rubbed off. 

 Bole. The body or stem of a tree. 

 Boreal. Pertaining to the north. 



Bract. A modified leaf subtending a flower or belonging to an inflorescence. 

 Bud-scales. Modified leaves covering a bud. 

 Bundle-scars. Scars on the surface of a leaf-scar. Severed ends of the flbro-vascular bundles 



which connected the twigs with the leaves. 

 Calyx. The outer portion of a flower, usually green in color. 

 Cambial. Pertaining to the cambium. 



Cambium. A thin-walled formative tissue between the bark and wood. 

 Capsule, A dry fruit composed of more than one carpel and splitting open at maturity. 

 Carpel. A simple pistil or one member of a compound pistil. 

 Catkin. An ament or spike of unisexual flowers. 



Chambered. Said of the pith when interrupted by hollow spaces at rather regular intervals.. 

 Ciliate. Fringed with hairs on the margin. 

 Coherent. Sticking together ; connected. 

 Collateral. Accessory buds at the sides of axillary buds. 

 Complete. Said of flowers when all parts are present. 

 Compound. Composed of two or more similar parts united in a whole. 



Concentric. Said of growth rings when the growth center coincides with the geometrical center. 

 Confluent. Flowing together ; uniting. Said of the bundle-scars when the separate ones flow 



together and appear as one. 

 Conical. Cone-shaped. 



Conifers. A group of trees which usually produce their fruit in the form of a cone. 

 Coniferous. Cone-bearing. 

 Conniving. Brought close together. 

 Contorted, Twisted together or back upon itself. 

 Convergent. Tending to one point. 

 Cordate. Heart-shaped. 

 Corolla, The inner portion of perianth, composed of petals. The bright colored part of most 



flowers. 



Corymb. A flat-topped or convex flower cluster, blooming first at the edges. 

 Corrugated. Shaped into grooves, folds, or wrinkles. 

 Crown. The upper mass of branches, also known as head. 



Cyme. A flower cluster blooming from apex or middle first, usually somewhat flat. 

 Cymose. In a cyme; cyme-like. 



Deciduous. Falling off, usually at the close of the season. 

 Decurrent. Extending down the stem below the insertion. 

 Defoliation. Removal of foliage. 

 Dehiscent. Splitting open. 

 Deliquescent. Said of the form of a tree with a broad spreading habit. The branches subdivide 



until they apparently disappear. 

 Deltoid. Delta-like, triangular. 



Dentate. Toothed, usually with the teeth directed outwards. 

 Diffuse-porous. Equal-pored. Said of wood when pores in a growth ring are equal In size. 



