221 



Digitately-compound. With the members arising at the same point at the end or top of the 

 support. 



Dioecious, Unisexual, with the two kinds of flowers on different plants. 

 Disseminated. Scattered ; thrown broadcast. 



Divergent. Pointing away ; ex:tending out. Said of buds which point away from the twigs. 



Downy. Covered with fine hairs. 



Drupe. A fleshy fruit with a pit or stone. 



Eccentric. Not circular. Said of growth rings when growth center does not coincide with 



geometrical center. 

 Elongated. Long drawn out. 

 Embryo. A young plant in a seed. 



Entire-margined. Margin smooth, not cut or roughened. 

 Epidermis. The outer layer or covering of plants. 

 Equidistant. Equal distances apart. 

 Even-pinnate. With all the leaflets occurring in pairs. 



Excurrent. Said of a tree with a continuous trunk and erect habit of growth. 

 Exfoliation. Splitting or cleaving off of outer layers of bark. 

 Exotic, Of foreign origin. 



Exudation. Oozing out of sap, resin, or milk. 

 Fascicle, A cluster, usually dense. 



Fertilization, The process by which pollen stimulates the ovule to produce a seed. 

 Fetid, Ill-smelling. 



Fibro-vascular bundles. The conducting strands which connect the leaves with the stem. 



Fibrous. Consisting of fibers ; woven in texture. 



Filament. The stalk bearing the anther. 



Fissures. Grooves, furrows, or channels as in the bark. 



Flora. The complete system of plants found in a given area. 



Fluted. Grooved, corrugated, channeled. 



Follicles. A dry fruit of one carpel, splitting on one side only. 

 Forestry. The rational treatment of woodlands for their products. 



Fruit, A developing or ripened ovary. It may also include the axis containing the real fruit. 

 Fungus. A plant devoid of green color such as mushrooms and rots. 

 Gaping. With an open slit at the end or apex. 



Genus. A group of related species, as the pines or the oaks. , 

 Glabrous. Smooth, without hairs. 

 Glandular. Bearing glands or gland-like. 



Glaucous. Covered with a bluish or whitish waxy coating ; a bloom. 



Globose. Ball-like or nearly so. 



Globular. Ball-like. 



Habitat, The home of a plant. 



Head. A dense cluster of sessile flowers or the crown of a tree. 

 Heartwood, The dead, central, usually highly colored portion of the trunk. 

 Herbaceous, Herb-like, soft. 



Heterogeneous, Composed of dissimilar elements, as the wood of the hardwoods. 

 Homogeneous, Composed of closely resembling elements, as the wood of the conifers. 

 Irnbricated. Overlapping like the slate on a roof. 



Incomplete. Said of flowers in which one of the outer parts is wanting. 

 Increment, Growth ; increase. 



Indehiscent, Applied to fruits that do not split open to let out the seeds. 

 Indigenous, Applied to plants that are native to a certain locality. 

 Inflorescence, The flowering part of a plant, and especially its arrangement. 

 Intolerant, Not shade enduring. Requiring sunlight. 



Involucre, A circle of bracts surrounding a flower or cluster of flowers. 



Irregular, Said of flowers showing inequality in the size, form, or union of similar parts. 



Keeled, With a central ridge, like the keel of a boat. 



Lamina. The blade or flattened portion of a leaf. 



Lanceolate. Shaped like a lance ; several times longer than wide. 



Lateral. Situated on the side, as the buds along the side of the twig. 



Leaflets. One of the small blades or divisions of a compound leaf. 



Leaf-scars. The scar left by the falling of a leaf. 



Lenticels. A corky growth on young or sometimes older bark which admits air to the interior 



of the twig or branch. 

 Linear. Line-like, long and narrow, with parallel edges, 

 Lobed. Said of leaves that have the margins more or less cut or divided. 

 Lunate, Of the rshape of a half-moon or crescent. 

 Manna, A sweetish secretion used in medicine as a mild laxative. 

 Medullary, Pertaining to the pith or medulla. 



Medullary Ray. Radial lines of tissues crossing the growth rings at right angles and extending 



into the bark. 

 Midrib, The central or main rib or vein of a leaf. 

 Mongrel. Composed of two elements of entirely different origin. 

 Monoecious, Bearing stamens and pistils in separate flowers on the same plant. 

 Morphological, Pertaining to the form and structure of plants. 

 Mucilaginous. Shiny, or gummy when chewed. 



Naked, Said of buds without scales and seeds without a covering. 

 Naval Stores. Refers to tar, turpentine, resin, etc. 



