dehiscence |
|
CHARACTER |
|
Mode of opening (splitting or forming apertures). |
aestivation |
|
CHARACTER |
|
Disposition of perianth (undifferentiated), calyx, or corolla members in the bud. |
sinuous |
|
course |
|
Regularly wavy in one plane, curved alternately and more or less regularly to either side. |
anisosepalous |
|
architecture |
flower, perianth, calyx |
Having sepals unequal in size and/or shape. |
gynaecium |
|
STRUCTURE |
|
See gynoecium. |
asymmetric(al) 1 |
|
architecture |
|
Not divisible into essentially equal halves along any line or plane. |
rugulose |
|
relief |
|
Slightly or finely rugose (corrugate, wrinkled). |
heterotrophic |
|
nutrition |
plant |
Dependent upon other organisms for some or all of its essential nourishment, assimilating such materials either directly from the other organisms, living or dead, or from their products. |
floating 1 |
|
habit |
plant |
Buoyant and growing entirely at or near the surface of water, not rooted in any substrate. |
internodal |
|
position |
|
Upon or otherwise directly associated with the internodes. |
vascular |
|
insertion |
|
Upon or otherwise directly associated with the vasculature. |
haustorium pl. haustoria |
|
STRUCTURE |
|
An absorbing and anchoring organ, often root-like, excrescent from a vegetative part of a parasitic or hemiparasitic plant, by which the plant communicates intimately with and derives sustenance and support from its host plant, into whose tissues the haustorium intrudes. |
mamilla pl. mamillae |
|
STRUCTURE |
|
A nipple- or teat-shaped protrusion. |
barb 2 |
|
STRUCTURE |
|
A trichome terminated by one or two small, relatively short, stiff, sharp, acutely reflexed appendages. |
epiphyllous |
|
insertion |
|
Upon the leaves, or partially adnate thereto and apparently arising therefrom. |
terete |
|
solid shape |
|
Elongate and transversely round, gradually attenuate from base to apex; attenuate-cylindric or attenuate-tubular, broadest at the base. See also obterete. |
rhizophore |
|
STRUCTURE |
|
A stem branch that bears no leaves and from which roots eventually arise; esp. in Selaginellaceae. |
membrane |
|
STRUCTURE |
|
A relatively thin layer of tissue that covers or separates other, different tissue(s) and/or empty space(s). |
pseudoterminal |
|
insertion |
|
Only apparently terminal; originally subapical but displaced toward the apex by differential growth during development. |
staminal |
|
position |
|
Upon or otherwise directly associated with the stamens. |
antipetalous |
|
insertion |
equivalent floral structures |
Each inserted directly above or below a petal. In place of this term, the phrase "opposite the petals" is often used, but that contradicts the sense of opposite as otherwise employed (arrangement of lateral structures along an axis) and should be avoided. |
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). |
extravaginal |
|
insertion |
|
Distal to or outside the leaf sheath. |
arcuate 1 |
|
course |
|
Curving more or less regularly in one direction. |
oblanceolate |
|
plane shape |
|
Inversely lanceolate (lancehead-shaped). |