|
disarticulating |
|
architecture |
axis |
Articulate(d) and with the main portions of the whole separating at the joints upon maturity or senescence. |
|
diplotegium pl. diplotegia |
|
nominative |
fruit |
A pyxis with accessory tissue adnate to the pericarp; derived from an inferior ovary. |
|
diplostemonous |
|
architecture |
flower, androecium |
Having the stamens dicyclic, the proximal whorl with members directly above the sepals, the distal whorl with members directly above the petals. See also obdiplostemonous. |
|
diplecolobal |
|
arrangement |
cotyledons |
Incumbent but with the cotyledons folded together twice or more, the folds transverse. |
|
dioecious |
< diclinous |
reproduction |
taxon |
Having all flowers or spikelets functionally unisexual, each plant having only staminate or only pistillate types. See also monoecious. |
|
dimidiate |
|
plane shape |
|
Halved, figuratively; bilaterally asymmetric, nearly or wholly lacking one side as implicitly compared with some corresponding bilaterally symmetric structure, real or imagined. |
|
dimidiate |
|
solid shape |
|
Halved, figuratively; bilaterally asymmetric, nearly or wholly lacking one side as implicitly compared with some corresponding bilaterally symmetric structure, real or imagined. |
|
dilate(d) |
|
solid shape |
elongate structure |
Narrow at one end and broadening toward the other; esp. when essentially terete at the narrow proximal end and seemingly flattened distally, as some anther filaments. |
|
digitate |
= palmate |
architecture |
foliaceous structure |
Compound with one order of leaflets all inserted at a common point and diverging from one another; or lobed (cleft, divided, parted, segmented), incised or ribbed in a similar hand-like pattern. Unless qualified to indicate otherwise, this term usually is understood to mean "palmately once-compound." See also …palmate, palmatifid, palmatipinnate, ternate. |
|
digamous |
|
reproduction |
inflorescence |
Bearing flowers of two differing sexual constitutions; esp. in Asteraceae (Compositae). |
|
diffuse-rooted |
> fibrous-rooted |
architecture |
plant |
Having a dense system of adventitious, slender roots that arise from the base of the main stem and functionally replace an evanescent primary root. See also taprooted. |
|
diffuse-porous |
|
porosity |
|
Homogeneously porous, the vessels not differentially disposed by size or number. |
|
diffuse root |
> fibrous root |
STRUCTURE |
|
Any member of a dense system of adventitious, slender roots that arise from the base of a main stem and functionally replace an evanescent primary root. |
|
diffuse |
|
architecture |
plant, stem |
Having branches remote and divergent to divaricate. |
|
didynamous |
|
architecture |
flower, androecium |
Diadelphous with two stamens in each set. See also tetradynamous. |
|
diclinous |
> dioecious, monoecious |
reproduction |
taxon |
Having all flowers functionally unisexual. See also monoclinous (synoecious). |
|
diclesium pl. diclesia |
< accessory fruit, anthocarp |
nominative |
fruit |
An achene enveloped by a persistent, free perianth base. |
|
dichotomous |
|
architecture |
axis |
Branching by division of the apical meristem producing two coordinate but not necessarily equal derivatives from each division. |
|
dichogamous |
> protandrous, proterandrous, protogynous |
maturation |
bisexual flower |
Having the androecium and gynoecium becoming functionally mature at different times. |
|
dichlamydeous |
|
architecture |
flower |
Having a perianth differentiated into a distinct calyx (sepals) and corolla (petals). |
|
dichasium-like |
= dichasiiform |
architecture |
capitulescence, inflorescence |
Resembling a dichasium, but not strictly such. |
|
dichasium pl. dichasia |
|
nominative |
inflorescence |
Determinate and falsely dichotomous with each axial segment bearing a sessile terminal flower and either a pair of opposite pedicellate lateral flowers or a pair of opposite lateral branches. See also cincinnus, cyme, cymule, helicoid cyme, monochasium, scorpioid cyme. |
|
dichasiiform |
= dichasium-like |
architecture |
capitulescence, inflorescence |
Resembling a dichasium, but not strictly such. |
|
dichasiate |
|
architecture |
inflorescence |
Comprising one or more simple or compound dichasia. See also cincinnate, cymose, cymulose, helicoid-cymose, monochasiate, scorpioid-cymose. |
|
diaphragmed |
|
architecture |
pith |
Uninterrupted by cavities but heterogeneous in texture at axis maturity, with sectors of spongy tissue separated by relatively thin transverse plates of denser tissue that occur at the nodes or are otherwise regularly spaced along the axis. |
