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laticiferous |
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exudation |
|
Producing and exuding latex. |
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radiate 1 |
|
architecture |
capitulum (head) |
Bearing one or more peripheral series of florets that are pistillate (either fertile or sterile) or neuter and that have zygomorphic corollas, and one or more central series of bisexual or functionally staminate florets that have actinomorphic corollas; in Asteraceae (Compositae). |
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perforate |
|
architecture |
foliaceous structure |
Having portions of the laminar (blade) area naturally devoid of any tissue. |
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axile |
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placentation |
|
Upon the central axis of a compound, plurilocular ovary. |
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suprafoliar |
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position |
|
Upon the stems, each directly above (distal to) and very near a point of leaf insertion. |
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basiscopic |
|
orientation |
subordinate structure |
Directed, facing, or pointing ("looking") toward the base of the bearing structure. |
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diplostemonous |
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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. |
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spongy |
|
texture |
|
Soft, light, discontinuous but cohesive, and somewhat resilient. |
|
woody clump |
|
nominative |
plant |
An aggregate of woody main stems that arise from belowground organs derived from a single progenitor; the members of a clump are individually tree- or shrub-like and sometimes become physically separate over time. See also bush, frutex, shrub, subshrub, suffrutex, tree, undershrub. |
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acetabuliform |
|
solid shape |
|
Transversely circular, broader than long, widest near or at the middle, relatively thin-walled, the hollow interior open distally; like a shallow bowl with strongly incurved sides. |
|
imperfect |
|
architecture |
flower |
Having either stamens or pistils absent or non-functional, thus unisexual. |
|
tetradynamous |
|
architecture |
flower, androecium |
Diadelphous with four stamens in one set and two in the other. See also didynamous. |
|
polygamous |
|
reproduction |
taxon |
Having both bisexual and unisexual flowers, borne on the same or on different plants. |
|
aerial |
|
location |
|
Above ground or water level. |
|
infructescence 1 |
|
STRUCTURE |
|
A mature (fruiting) inflorescence (static sense). |
|
obtrulloid |
|
solid shape |
|
Inversely trulloid. |
|
convolute 2 |
|
arrangement |
cotyledons |
Each rolled or folded inward longitudinally, one enveloping the other. |
|
irregular 1 |
|
architecture |
perianth, calyx, corolla |
Imperfectly actinomorphic, the constituents disposed symmetrically but unequal in size and/or shape. See also peloric. |
|
opposite 2 |
|
arrangement |
|
Having the members of each whorl inserted directly above and/or below those of the next adjacent whorl(s). See also antipetalous, antisepalous. |
|
scorpioid cyme |
|
nominative |
inflorescence |
A cyme in which each axial segment branches to only one side, the successive segments branching alternately to either side, the whole appearing to have a continuous, elongate, straight to zig-zag main axis. See also cincinnus, helicoid cyme (bostryx). |
|
annulus 2 pl. annuli |
|
STRUCTURE |
|
A row of protruding specialized sporangial wall cells that extends upward from the base of the sporangium and over its apex, thus forming an incomplete circumferential ring; esp. in Polypodiophyta. The inner and radial walls of the annular cells are markedly thickened and the structure functions as a spore-releasing and -disseminating mechanism as a result of differential stresses developed within the mature sporangial wall upon desiccation. |
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prophyllar |
|
insertion |
|
Upon or otherwise directly associated with the prophylls (bracteoles, bractlets). |
|
stipel |
|
STRUCTURE |
|
A stipular analogue subtending a leaflet. |
|
semicraspedodromous |
|
venation |
|
Having a single median primary vein that branches to either side along the length of the lamina, each secondary vein running thence toward and bifurcate near the margin, one branch terminating at the margin, the other upwardly arcuate and merging with the superadjacent secondary vein, thus forming one of a series of marginal loops. |
|
apotropous |
|
orientation |
ovule |
Anatropous but the whole recurved such that the raphe (adnate portion of the funiculus) faces the ovary wall (placenta) and the ovule is parallel to it, the micropyle facing the free basal portion of the funiculus. |
