Decandrous. Having ten stamens.
Deciduous. Falling off after a time; not persistent.
Declinate. Bent or curved downwards.
Decompound. Repeatedly compound or divided.
Decumbent. Reclining or horizontal at the base, but ascending at the summit.
Decurrent. Running downwards; apphed to a leaf prolonged below its point of insertion.
Decussate. In pairs crossing alternately at right angles, as the leaves in many species of Veronica.
Definite. (1.) Of a constant number, not exceeding twenty. (2.) Limited or determinate, as definite inflorescence, where the axis ends in a flower.
Deflexed. Bent abruptly downwards.
Dehiscence. The manner in which a fruit-capsule or anther-cell opens at maturity.
Dehiscent. Opening or splitting into definite parts.
Deltoid. Shaped like the Greek letter Δ; broadly triangular.
Dendroid. Resembllng a tree in shape or mode of branching.
Dentate. Toothed; possessing regular teeth pointing straight outwards.
Denticulate. Finely toothed.
Depauperate. Reduced in size, as if starved or impoverished.
Dependent. Hanging down.
Depressed. Flattened from above.
Dextrorse. Towards the right hand.
Diadelphous. Having the stamens united in two bundles.
Diandrous. Possessing two stamens.
Diaphanous. Allowing light to pass through; pellucid.
Dichlamydeous. Applied to those plants whose flowers have a double perianth, or both calyx and corolla.
Dichotomous. Repeatedly forked by pairs.
Dicotyledons. Those plants whose embryo possesses two cotyledons or seed-lobes.
Didymous. In pairs or deeply divided into two lobes.
Didynamous. Having four stamens placed in pairs, two long and two short.
Diffuse. Loosely or widely spreading.
Digitate. Fingered; applied to a compound leaf in which the leaflets spread from the top of the petiole.
Dilated. Widened; expanded.
Dimidiate. Halved; as when half of a leaf is so much smaller than the other as to appear wanting.
Dimorphic, Dimorphous. Occurring in two forms.
Diœcious. Unisexual; having the male and female flowers on different plants.
Dipetalous. Having two petals.
Diphyllous. Possessing two leaves.
Disc. (1.) A dilation or development of the receptacle within the calyx or within the corolla and stamens. (2.) The central portion of the flower-head of a Composite, as opposed to the ray. (3) The face of any organ, in contradistinction to the margin.
Disciform. Having the shape of a disc—circular and depressed.
Discoidal. Same as "disciform."
Dissected. Deeply divided or cut into many segments.
Dissepiment. The partitions separating the cells of an ovary or fruit.
Distichous. Arranged in two vertical rows or ranks, as the florets of many grasses.
Distinct. Separate; not united.
Divaricate. Widely spreading.
Divergent. Spreading further apart; the opposite of "convergent."
Divided. Cleft almost to the base.
Dorsal. On or relating to the back of any organ.
