AbortiveThat which is brought forth prematurely; coming to naught before it is completed.AcheneA small hard, dry, 1-celled, 1-seeded fruit which does not open by valves.AcridSharp or biting to the taste.AcuminateDecidedly tapering at the end.AcuteTapering at the end.AestheticPertaining to the beautiful.AlternateNot opposite to each other, but scattered singly along the axis.AmentA peculiar, scaly, unisexual spike.AntherThe enlarged terminal part of a stamen which bears the pollen.ApexThe tip or end of a bud or leaf, i. e., the part opposite the base.ApicalPertaining to the tip, end, or apex.AppressedLying tight or close against.ArborescentTree-like in appearance, size and growth.AromaticFragrant; with a pleasing odor.AstringentContracting; drawing together; binding.Awl-ShapedTapering from the base to a slender or rigid point.AxilThe upper angle formed by a leaf or branch with the stem.AxillarySituate in an axil.AxisThe central line of an organ; a stem.BasalPertaining to or situated at base.BerryA fruit which is fleshy or pulpy throughout.BloomA powdery or somewhat waxy substance easily rubbed off.BractA modified leaf subtending a flower or belonging to an inflorescence.CalyxThe outer portion of a flower, usually green in color.CambiumA thin-walled formative tissue between the bark and wood.CapsuleA dry fruit composed of more than one carpel and splitting open at maturity.CatkinAn ament or spike of unisexual flowers.CiliateFringed with hairs on the margin.CompleteSaid of flowers when all parts are present.CompoundComposed of two or more similar parts united in a whole.CompressedFlattened, especially laterally.ConicalCone-shaped.ConifersA group of trees which usually produce their fruit in the form of a cone.ConiferousCone-bearing.ContortedTwisted together or back upon itself.CordateHeart-shaped.CorollaThe inner portion of perianth, composed of petals. The bright colored part of most flowers.CorymbA flat-topped or convex flower cluster, blooming first at the edges.CorrugatedShaped into grooves, folds, or wrinkles.CrenateHaving rounded teeth.CrownThe upper mass of branches, also known as head.CymeA flower cluster blooming from apex or middle first, usually somewhat flat.CymoseIn a cyme; cyme-like.DeciduousFalling off, usually at the close of the season.DecurrentExtending down the stem below the insertion.DefoliationRemoval of foliage.DehiscentSplitting open.DeltoidDelta-like, triangular.DentateToothed, usually with the teeth directed outward.DepressedFlattened from above.Digitately-compoundWith the members arising at the same point at the end or top of the support.DioeciousUnisexual, with the two kinds of flowers on different plants.DisseminatedScattered; thrown broadcast.DivergentPointing away; extending out. Said of buds which point away from the twigs.DownyCovered with fine hairs.DrupaceousResembling or constructed like a drupe.DrupeA fleshy fruit with a pit or stone.ElongatedLong drawn out.EmarginateHaving a shallow notch at the apex.EntireMargin smooth, not cut or roughened.EpidermisThe outer layer or covering of plants.ExoticOf foreign origin.ExudationOozing out of sap, resin, or milk.FalcateScythe-shaped.FascicleA cluster, usually dense.FetidIll-smelling.FibrousConsisting of fibers; woven in texture.FilamentThe stalk bearing the anther.FissuresGrooves, furrows, or channels as in the bark.FloraThe complete system of plants found in a given area.FlutedGrooved, corrugated, channeled.FolliclesA dry fruit of one carpel, splitting on one side only.ForestryThe rational treatment of woodlands for their products.FruitThe seed-bearing product of a plant of whatever form.FungusA plant devoid of green color such as mushrooms and rots.GenusA group of related species, as the pines or the oaks.GlabrousSmooth, without hairs.GlandularBearing glands, or gland-like.GlaucousCovered with a bluish or whitish waxy coating; a bloom.GloboseBall-like, or nearly so.GlobularBall-like.HabitatThe home of a plant.HeadA dense cluster of sessile flowers or the crown of a tree.HeartwoodThe dead, central, usually highly colored portion of the trunk.HerbaceousHerb-like, soft.ImbricatedOverlapping like the slate on a roof.ImpressedHollowed or furrowed as if by pressure.IncompleteSaid of flowers in which one of the outer parts is wanting.IndigenousApplied to plants that are native to a certain locality.InflorescenceThe flowering part of a plant, and especially its arrangement.IntolerantNot shade enduring. Requiring sunlight.InvolucreA circle of bracts surrounding a flower or cluster of flowers.IrregularSaid of flowers showing inequality in the size, form, or union of similar parts.KeeledWith a central ridge, like the keel of a boat.LanceolateShaped like a lance; several times longer than wide.LateralSituated on the side, as the buds along the side of the twig.LeafletOne of the small blades or divisions of a compound leaf.LenticelA corky growth on young or sometimes older bark which admits air to the interior of the twig or branch.LinearLine-like, long and narrow, with parallel edges.LobedSaid of leaves that have the margins more or less cut or divided.MidribThe central or main rib or vein of a leaf.MonoeciousBearing stamens and pistils in separate flowers on the same plant.MucronateTipped with a short, sharp point.Naval StoresRefers to tar, turpentine, resin, etc.NerveOne of the lines or veins running through a leaf.NodeA place on a twig where one or more leaves originate.NutA dry, 1-seeded, indehiscent fruit with a hard covering.NutletA small nut.Ob-A prefix meaning inverted or reversed.ObliqueSlanting, uneven.OblongAbout twice as long as wide, the sides nearly parallel.ObovateReversed egg shaped.ObtuseBlunt.Odd-pinnateWith an odd or unpaired leaflet at the tip of the compound leaf.OppositeSaid of leaves and buds directly across from each other.OrbicularCircular.OvaryThe part of the pistil producing the seed.OvateEgg-shaped in outline.OvoidEgg-shaped or nearly so.PalmateHand-shaped; radiately divided.PanicleA compound flower cluster, the lower branches of which are longest and bloom first.ParasiteGrowing upon and obtaining its nourishment from some other plant.PedicelThe stalk of a single flower.PeduncleThe stalk of a flower cluster or of a solitary flower.PendulousHanging.PerennialLasting for more than one year.PerfectA flower with both stamens and pistils.PersistentRemaining after blooming, fruiting, or maturing.PetalThe part of a corolla, usually colored.PetioleThe stalk of a leaf.PinnaA division, part, or leaflet of a pinnate leaf.PinnateWith leaflets on both sides of a stalk.PistilThe central part of the flower containing the prospective seed.PistillateBearing pistils but no stamens.PithThe soft, central part of a twig.PodAny dry and dehiscent fruit.PollenThe dust-like substance found in the anthers of a flower.PolygamousWith both perfect and imperfect, staminate or pistillate, flowers.PomeA fleshy fruit with a core, such as the apple.PrickleA sharp-pointed, needle-like outgrowth.Psuedo-A prefix meaning false, not true.PubescentHairy.PungentEnding in a sharp point; acrid.PyramidalShaped like a pyramid with the broadest part near the base.RacemeA simple inflorescence of flowers borne on pedicels of equal length and arranged on a common, elongated axis.ReflexedAbruptly turned backward or downward.RegularSaid of flowers which are uniform in shape or structure.RugoseWrinkled.SaccharinePertaining to or having the qualities of sugar.SamaraAn indehiscent winged fruit.SapwoodThe recently formed, usually light wood, lying outside of the heartwood.ScalesThe small, modified leaves which protect the growing-point of a bud or the part of a cone which bears the seeds.The small flakes into which the outer bark of a tree divides.ScurfyCovered with small bran-like scales.SepalOne of the parts of the calyx.SerrateHaving sharp teeth pointing forward.SessileSeated; without a stalk.SheathA tubular envelope or covering.ShrubA low woody growth which usually branches near the base.SilkyCovered with soft, straight, fine hairs.SimpleConsisting of one part, not compound.SinuateHaving a strongly wavy margin.SinusThe cleft or opening between two lobes.SpeciesA group of like individuals as Red Oak, White Oak, etc.SpikeAn elongated axis bearing sessile flowers.SpineA sharp woody outgrowth.StamenThe part of a flower which bears the pollen.StaminateSaid of flowers which bear only stamens. Sometimes spoken of as male.SterileBarren; unproductive.StigmaThe end of a pistil through which pollination takes place.StipuleA leaf appendage at the base of the leaf-stalk.StriateMarked with fine elongated ridges or lines.StrobileA fruit marked by overlapping scales as in the Pine, Birches, etc.StyleThe pin-like portion of a pistil bearing the stigma.Sub-A prefix meaning under or nearly.SuckerA shoot arising from an underground bud.SutureA line of dehiscence.SymmetricalRegular as to the number of parts. Having the same number of parts in each circle.TereteHaving a circular transverse section.TerminalPertaining to buds located at the end of twigs.ThornA stiff, woody, sharp-pointed projection.TolerantApplied to trees which endure certain factors, particularly shade.TomentumA dense layer of hairs.TomentoseDensely pubescent; hairy.TruncateEnding abruptly as if cut off at the end.TubercleA small tuber or tuber-like body.TuftedGrowing in clusters.UmbelA flower-cluster with all the pedicels arising from the same point.ValvateSaid of buds in which the scales merely meet without overlapping.VegetativeSaid of buds which do not contain reproductive organs.VeinsThreads of fibro-vascular tissue in leaves or other organs.ViscidGlutinous; sticky.WhorlA group of three or more similar organs, as leaves or buds, arranged about the same place of attachment.WhorledBorne in a whorl.
Transcriber’s NotesObvious typographical errors have been silently corrected. All other variations in hyphenation spelling and punctuation remain unchanged.
Obvious typographical errors have been silently corrected. All other variations in hyphenation spelling and punctuation remain unchanged.