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endocarp |
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STRUCTURE |
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The innermost tissue layer of a pericarp. |
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sapwood |
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STRUCTURE |
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That portion of the wood (xylem) of a stem or root whose cells are still living and functional; concentric about the heartwood once the latter has begun to form. |
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flaccid |
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texture |
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Limp, sometimes appearing withered or shrunken. See also tumid (swollen, turgid). |
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single-veined |
= hyphodromous, one-veined |
venation |
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Having one median, primary vein and no other venation externally evident. |
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…gonous |
= …angled |
solid shape |
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Elongate with the number of longitudinal angles indicated by the prefix, the intervening sides transversely straight to concave; as in hexagonous, trigonous. See also deltoid, …gonal (…angular), obdeltoid, triquetrous. |
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stigma pl. stigmata, stigmas |
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STRUCTURE |
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An exposed, localized portion of a pistil that retains deposited pollen and stimulates its germination, the pollen tubes then growing through or along it toward the ovule(s). |
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hypogynium pl. hypogynia |
= gynophore; < stalk, stipe (broad sense, not recommended) |
STRUCTURE |
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The basal portion of an ovary when constricted and stalk-like above the level of perianth insertion, bearing the main body of the pistil at its summit; in Cyperaceae. |
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lancehead-shaped 1 |
= lanceolate |
plane shape |
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Elongate, moderately narrow, broadest just above the base and gradually attenuate toward the apex, the sides more or less straight; like the outline of the broad lateral face of a lance head. See also oblanceolate. |
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turion |
< sucker |
STRUCTURE |
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A scaly sucker. |
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wingless 1 |
= exalate |
architecture |
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Lacking elongate, relatively thin protrusions or appendages that resemble wings. |
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basipetal |
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development |
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Proceeding toward the base, thus more advanced apically or distally than basally or proximally within a given frame of reference. |
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orientation |
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CHARACTER |
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Attitude or direction with respect to some explicit or implicit structure(s) or context. The lexicon relating to orientation includes some conceptually complex terms whose meanings also embrace aspects of structural composition or shape. Overlaps conceptually with arrangement, habit, insertion, position, and shape. |
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commissure |
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FEATURE |
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Precisely, the joint or common boundary between the facing surfaces of two coherent or mutually appressed structures such as mericarps or stigmas, but traditionally (though imprecisely) applied to such a facing surface itself. |
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pilose |
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pubescence |
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Bearing relatively sparse, soft, slender, more or less erect capillate trichomes. See also pilosulous. |
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rostrum 1 pl. rostra |
= beak |
STRUCTURE |
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A relatively long, tapering, more or less rigid and pointed enation or termination. |
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setiform |
= bristle-shaped, setaceous |
solid shape |
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Elongate, slender, terete, straight, terminating in a fine point, and apparently stiff; like a bristle. |
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geniculate |
= kneed |
solid shape |
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Elongate, abruptly bent, somewhat thicker at the angle, and appearing as though articulate like a leg at the knee. |
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supple |
= flexible, pliable, pliant |
texture |
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Able to bend over its length and/or breadth without structural disruption. |
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knee root |
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STRUCTURE |
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A specialized secondary root of a wetland tree, a portion of which projects above mean water level and appears to bend as a leg does at the knee, its distalmost portion being anchored in the substrate beneath the water. The knee of the root is commonly regarded as a conduit for gas exchange between root interior and atmosphere, a function whose need is posited on the basis of the highly anaerobic and saturated conditions prevailing in wetland substrates. |
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triple-… |
= thrice-…, tri-… |
prefix |
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Indicating presence of three hierarchical orders of the type of entity or pattern denoted by the term's stem; as in triple-palmate. See also three-…. |
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triquetrous |
= three-angled, trigonous; > deltoid, obdeltoid |
solid shape |
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Elongate with three sides that meet at acute or obtuse angles. |
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viscid 1 |
< glutinous |
coating |
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Of a sticky substance. |
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axil |
|
FEATURE |
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The space bounded by and near the vertex of the distal angle between a lateral structure, especially a leaf, and the axis that bears it. |
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mentum pl. menta |
= column foot |
STRUCTURE |
|
A lateral, often nectariferous protrusion from the proximal portion of a column, opposite the labellum, projecting in front of the rest of the flower; in Orchidaceae. |
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callous |
= callose |
texture |
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Hard-leathery; callous tissue usually is also thicker than comparable adjacent tissue. |
