|
leaf-opposed |
|
position |
|
Nodal and directly opposite the leaf. |
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oblate |
|
solid shape |
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Symmetrically elongate and broader than long perpendicular to the developmental or polar axis. |
|
tiered |
|
arrangement |
|
In two or more rows that are arrayed one above another. |
|
cirrhous |
|
apex |
|
Having a narrow spiral tip that is a continuation of the central primary vein. |
|
liguliflorous |
|
architecture |
capitulum (head) |
Bearing florets that all are bisexual and have zygomorphic corollas; in Asteraceae (Compositae). |
|
presence |
|
CHARACTER |
|
Occurrence within the context in point. |
|
barb 1 |
|
STRUCTURE |
|
Any relatively short, stiff, sharp, acutely inserted or bent, antrorse or retrorse, terminal or lateral appendage. |
|
hilum 1 pl. hila |
|
FEATURE |
|
The scar left on a seed at the point of its abscission from the funiculus. |
|
dichasiate |
|
architecture |
inflorescence |
Comprising one or more simple or compound dichasia. See also cincinnate, cymose, cymulose, helicoid-cymose, monochasiate, scorpioid-cymose. |
|
pachycaulous |
|
architecture |
plant |
Having thick, more or less succulent stems. |
|
seed |
|
STRUCTURE |
|
A mature or ripened ovule containing an embryonic sporophyte and a nutritive tissue (endosperm or perisperm) with stored food that sustains the initial growth of the embryo upon germination, except when such food reserve is stored instead in the cotyledon(s) of the embryo itself, these enclosed by one or two integuments (the testa), the whole serving as a propagule. A fertile seed (one containing a viable embryo) normally results from sexual fertilization of an egg by a sperm; however, fertile seeds are sometimes produced asexually by apomictic processes (e.g., parthenogenesis). |
|
acrocaulous |
|
insertion |
|
At or very near the stem tip. |
|
pseudostem |
|
STRUCTURE |
|
A structure that resembles a stem but is not part of the axial system of a shoot, lacking anatomical differentiation into nodes and internodes. |
|
straight |
|
course |
|
Lacking significant curves or bends. |
|
collateral |
|
insertion |
buds |
In pairs within or immediately straddling the leaf axils, the members of a pair lateral to one another. |
|
incurved |
|
orientation |
|
Curving adaxially. See also decurved. |
|
dovetailing |
|
habit |
trichome |
Papillate and serving to hold a surface to the opposing one of an appressed structure by interlocking with others on the opposing surface; sometimes furcate. |
|
free-central |
|
placentation |
|
Upon the free axial column of a compound, unilocular ovary. |
|
subpetiolar |
|
position |
|
Just below the point of petiole insertion. |
|
internodal |
|
insertion |
|
Upon or otherwise directly associated with the internodes. |
|
peltate |
|
architecture |
foliaceous structure |
Petiolate with the petiole attached to the abaxial face of the blade at some point within the margin and otherwise free from the blade. |
|
valvate 4 |
|
dehiscence |
fruit |
With longitudinal segments of the wall (valves) separating partly or wholly from one another, spreading outward from the base or apex, and sometimes falling away. |
|
ellipsoid(al) |
|
solid shape |
|
Elliptic in any median longitudinal section; elongate, transversely circular, broadest at the middle, and symmetrically convex-attenuate to rounded ends. See also oblong. |
|
gamophyllous |
|
architecture |
plant, shoot axis, involucre |
Having pairs or whorls of leaves or bracts that are connate at their edges. |
|
raphe |
|
STRUCTURE |
|
That portion of the funicle adnate to the integument of an anatropous ovule; represented by a longitudinal ridge or other discontinuity in the surface and/or color of the testa on one side of the mature seed. |
