sheathing 2 |
|
base |
laminar structure |
Terete or involute and closely enclosing the supporting axis for some distance above the point of insertion. |
cuneate 1 |
= obtriangular, wedge-shaped |
base |
laminar structure |
Attenuate with the sides more or less straight and intersecting at an acute angle. |
decurrent |
|
base |
laminar structure |
Having the lamina prolonged and adherent to the supporting axis beneath the point of vascular insertion, the prolonged portion termed a sterigma. |
unguiculate |
= clawed |
plane shape |
l |
Having an abruptly much narrower proximal portion (unguis or claw), itself of variable shape but usually attenuate toward the base; esp. petals. |
clawed |
= unguiculate |
plane shape |
l |
Having an abruptly much narrower proximal portion (claw or unguis), itself of variable shape but usually attenuate toward the base; esp. petals. |
pistillate |
= carpellate (not recommended) |
architecture |
inflorescence, flower, floret |
Having functional pistils but no functional stamens, thus unisexual and female. |
staminate |
|
architecture |
inflorescence, flower, floret |
Having functional stamens but no functional pistils, thus unisexual and male. |
carpellate (not recommended) |
= pistillate |
architecture |
inflorescence, flower, floret |
Having functional pistils but no functional stamens, thus unisexual and female. |
pulvinate 1 |
|
architecture |
inflorescence axis, petiole |
Having a pulvinus. |
epulvinate |
|
architecture |
inflorescence axis, petiole |
Lacking a pulvinus. |
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. |
trigamous |
|
reproduction |
inflorescence |
Bearing flowers of three differing sexual constitutions; esp. in Asteraceae (Compositae). |
monochasiate |
|
architecture |
inflorescence |
Comprising one or more simple or compound monochasia. See also cincinnate, cymose, cymulose, dichasiate, helicoid-cymose, scorpioid-cymose. |
spike |
|
nominative |
inflorescence |
An elongate, determinate or usually indeterminate axis bearing sessile flowers inserted singly along it, unbranched or sometimes bearing lateral branches of the same nature. |
bostryx pl. bostryches |
= helicoid cyme |
nominative |
inflorescence |
A cyme in which each axial segment branches to only one side, and all branch to the same side, the whole thus appearing to have an elongate main axis that curves or coils toward its unbranched side. See also scorpioid cyme. |
cyathiate |
|
architecture |
inflorescence |
Comprising one or more cyathia. |
pedunculate |
< stalked |
architecture |
inflorescence |
Having a peduncle. |
monochasium pl. monochasia |
|
nominative |
inflorescence |
Determinate and falsely dichotomous with each axial segment bearing a single, sessile terminal flower; presumably derived from a dichasium by loss of the lateral flowers. See also cincinnus, cyme, cymule, dichasium, helicoid cyme, scorpioid cyme. |
spikelet |
|
nominative |
inflorescence |
A compound structure belonging to the penultimate subdivisional order of a sedge or grass inflorescence; consisting of one or more florets (each a diminutive flower subtended by specialized bractlets (bracteoles) called scales or glumes in sedges, lemma and palea in grasses), spicately arranged along a common axis (rachilla), the axis and florets together subtended by one or (usually) two bracts (first and second glumes). The spikelet is usually considered to be the basic unit of inflorescence in Cyperaceae and Poaceae (Gramineae). |
rhipidiate |
|
architecture |
inflorescence |
Comprising one or more rhipidia. |
spikeleted |
|
architecture |
inflorescence |
Having the penultimate subdivisional order consisting of spikelets. |
rhipidium pl. rhipidia |
|
nominative |
inflorescence |
A cyme with the branches alternate and disposed in two opposite ranks along the main axis, the whole fan-like. |
cyathium pl. cyathia |
|
nominative |
inflorescence |
Resembling a single flower, the unbranched axis very short with a terminal pistillate flower and several lateral staminate flowers, the whole subtended and to some degree enclosed by a cupulate envelope of bracts, the flowers diminutive and presumed to be evolutionarily reduced; characteristic of Euphorbia. |
corymb |
|
nominative |
inflorescence |
An indeterminate, more or less condensed raceme with the pedicels progressively shorter toward the distal end, the flowers all borne at approximately the same level, the whole generally plane or convex at the top, the flowers maturing from the edge inward (i.e., the proximal or outer flowers maturing first). |
cincinnate |
< helicoid-cymose |
architecture |
inflorescence |
Comprising one or more cincinni. |