|
resin |
|
SUBSTANCE |
|
A substance of high molecular weight consisting of organic acids, esters, and/or terpenes, produced within plant tissue and exuded from wounds as a liquid that hardens to an amorphous glassy state upon exposure. |
|
six-… |
= hexa… |
prefix |
|
Indicating presence of or constitution by six entities of the type denoted by the term's stem; as in six-angled, six-sepaled, six-styled. |
|
cauline |
|
position |
|
Upon, arising from, or otherwise directly associated with the stem. |
|
lacrimate |
= teardrop-shaped |
plane shape |
|
Like the stylized lateral outline of a teardrop; broadest just below the middle, broadly rounded to the base, and acutely attenuate to the apex; like the stylized lateral outline of a teardrop. |
|
phyllopodium pl. phyllopodia |
|
STRUCTURE |
|
A stem-like axis composed of fused leaf bases; esp. in Arecaceae (Palmae), Musaceae. |
|
muticous |
|
apex |
|
Lacking a distinct terminal point (when one might be expected). |
|
derivation |
|
CHARACTER |
|
Ontogenetic origin. |
|
thrice-… |
= tri…, triple-… |
prefix |
|
Indicating presence of three hierarchical orders of the type of entity or pattern denoted by the term's stem; as in thrice-pinnate. See also three-… (tri…). |
|
funicle |
= funiculus; < stalk |
STRUCTURE |
|
A stalk that attaches an ovule to a placenta of the ovary wall. |
|
scabrid |
= rough, scabrate, scabridous, scabrous |
relief |
|
Having small, stout, stiff, more or less acute protrusions. |
|
columella 2 pl. columellae, columellas |
= carpophore; < stalk |
STRUCTURE |
|
The stalk supporting a mericarp after dehiscence of a schizocarpic fruit, the central axis of the fruit having split longitudinally to yield two or four such stalks; composed of receptacular and (primarily) gynoecial tissues; esp. in Apiaceae (Umbelliferae). |
|
lobe |
? division, segment |
STRUCTURE |
|
Any generally convex, major peripheral protrusion or component sector that is delimited by concavities in the surface or margin and that is not proximally distinct from the remainder of the whole. |
|
cordate 2 |
= heart-shaped |
plane shape |
|
Fairly regularly attenuate from a broad, bilobate base to a narrow apex, the lobes large, rounded, retrorse, and intersecting; like the stylized outline of the broad lateral face of a heart. See also obcordate. |
|
prolate |
|
plane shape |
|
Symmetrically elongate parallel to the developmental or polar axis. |
|
dissected |
? cleft, divided, lobate, lobed, parted, partite, segmented |
solid shape |
|
Having two or more component sectors or peripheral protrusions that are delimited by concavities in the surface or margin and that are not proximally distinct from the remainder of the whole. The meanings of this term and its approximate synonyms sometimes have been supposed to differ according to the depth of the delimiting concavities relative to the midline or midpoint of the overall structure, and/or to the shape or proportions of the protusions or sectors; however, there has been little consistency in the applications of the various terms according to such distinctions, which are ones only of degree and are necessarily arbitrary in any case. In general usage, these terms differ only indistinctly and connotatively: cleft, lobed (or lobate), parted (or partite) and segmented tend to connote fewer protrusions or sectors; lobate usually connotes as well a generally rounded shape; dissected tends to connote more numerous sectors that are elongate and angular. See also cut (incised, lacerate, torn), laciniate (slashed). |
|
arillode |
< aril (broad sense) |
STRUCTURE |
|
A "false" aril; an appendicular structure that wholly or partly envelops a seed and is produced from or a modification of the outer integument or (in some Pinophyta) a subtending involucre, but not from the funicle or raphe, and thus is not ontogenetically derived from the placenta; usually fleshy or pulpy, sometimes spongy or tufted-capillate, often brightly colored. |
|
axil |
|
FEATURE |
|
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. |
|
sharp |
= acute |
apex |
|
Acutely angular; regularly and more or less straightly attenuate to an angular tip, the sides intersecting at an angle of less than 90°. |
|
perianth |
|
STRUCTURE |
|
Collectively, all the sterile, primary, lateral organs (tepals, or sepals and/or petals) of a flower; inserted upon the floral axis immediately beneath (proximal to) the reproductive organs (androecium and/or gynoecium) and surrounding them, often protectively; lacking in some taxa; the individual members typically laminar and more or less foliaceous; widely regarded as consisting of the evolutionarily modified leaves of a fertile shoot; the constituent members undifferentiated with respect to one another, or else differentiated into more or less distinct floral envelopes (calyx and corolla), one or the other of which is deemed lacking in some taxa due to evolutionary reduction following differentiation. |
|
subround |
= subcircular; suborbicular misapplied, subrotund misapplied |
plane shape |
|
Compressed circular or very broadly elliptic, only slightly longer than wide. |
|
mono… |
= one-…, single-…, uni… |
prefix |
|
Indicating presence of or constitution by one entity of the type denoted by the term's stem; as in monandrous, monocolpate, monocyclic. See also entries for particular terms with this prefix whose meanings, at least in some applications, are more specific than usually indicated by such combination. |
|
ten-… |
= deca… |
prefix |
|
Indicating presence of or constitution by ten entities of the type denoted by the term's stem; as in ten-carpeled, ten-stamened, ten-winged. |
|
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. |
|
epidermal cell |
|
STRUCTURE |
|
Any of the unspecialized cells of an epidermis; i.e., any other than stomatal guard cells or cells directly associated with trichomes. While the latter specialized cells are also properly epidermal cells, they are treated separately for descriptive purposes and, for the sake of convenience, use of the general term is restricted to the unspecialized cells that constitute the bulk of an epidermis. |
|
hyphodromous |
= one-veined, single-veined |
venation |
|
Having one median, primary vein and no other venation externally evident. |
