perennate |
|
duration |
structure |
Persisting in a functional state through the entire growing season. |
fertile |
|
reproduction |
plant, reproductive structure |
Producing functional spores, gametes, pollen, ovules, seeds, or other propagules. |
indusiate |
|
architecture |
sorus |
Having an indusium. |
diplotegium pl. diplotegia |
|
nominative |
fruit |
A pyxis with accessory tissue adnate to the pericarp; derived from an inferior ovary. |
circumscissile |
|
dehiscence |
|
Splitting transversely through the exterior wall about its entire circumference, the resulting upper cap-like portion falling away. |
villosulous |
|
pubescence |
|
Finely villose (shaggy, villous). |
shoot 2 |
|
STRUCTURE |
|
A vascularized axis that is differentiated into nodes and internodes and that branches exogenously from the former, together with any non-axial structures borne from it. |
veined |
|
architecture |
|
Having one or more orders of evident vasculature. |
ligule 4 |
|
STRUCTURE |
|
The distal, relatively flat portion of the zygomorphic corolla of a ligulate floret, terminating in 5 teeth or lobes; in Asteraceae (Compositae). |
ramal |
|
position |
|
Upon or otherwise directly associated with the stem branches. |
throat 2 |
|
STRUCTURE |
|
The fully connate portion of the limb of a disc floret, proximal to the lobes (distinct distal portions of the petals); in Asteraceae (Compositae). |
isopetalous |
|
architecture |
flower, perianth, corolla |
Having the petals essentially alike in size and shape. |
rhytidomal |
|
insertion |
|
Within, upon, or otherwise directly associated with the bark. |
collar 2 |
|
FEATURE |
|
The junction between the sheath and blade of a leaf; esp. in Poaceae (Gramineae). |
axis pl. axes |
|
STRUCTURE |
|
Any unitary and longitudinally continuous structure that bears laterally the subordinate portion(s), if any, of a plant root or shoot or any subdivision thereof and that represents the main line of structural development and/or symmetry distal to its origin, irrespective of the particular ontogenetic growth pattern involved. See also primary axis. |
tubercle |
|
FEATURE |
|
A small, rounded, knot-like swelling or wart-like protrusion. |
sectile |
|
architecture |
pollinium |
Having partially separated sectors, as though cut. |
strict |
|
course |
|
Lacking any curve or bend. |
tree |
|
nominative |
plant |
Perennial, woody, more or less erect, relatively tall, with one or more distinct aboveground portions each with a single, relatively stout, columnar, main stem (trunk or bole) that bears branches. See also bush, frutex, shrub, subshrub, suffrutex, undershrub, woody clump. |
nucellus pl. nucelli |
|
STRUCTURE |
|
The distinct, genetically diploid tissue layer immediately surrounding the embryo sac of an ovule; often considered equivalent to a megasporangium wall. |
monadal |
|
arrangement |
pollen |
Shed singly, or essentially so, only loosely and irregularly, if at all, coherent, each original tetrad having separated fully. |
nut |
|
nominative |
fruit |
Relatively large, indehiscent, one-loculed, one-seeded and with a thick, hard, sometimes osseous pericarp; derived from a single, simple or compound ovary. See also acorn (glans). |
epiphyllous |
|
position |
|
Upon the leaves, or partially adnate thereto and apparently arising therefrom. |
septifragal |
|
dehiscence |
fruit |
Splitting through the exterior wall suture(s) but not the septum(-a), the valves of the wall then separating from the septum(-a) and the locules thus opened directly to the outside. |
acropetal |
|
development |
|
Proceeding toward the apex, thus more advanced basally or proximally than apically or distally within a given frame of reference. |