involucre 1 |
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STRUCTURE |
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One or more closely proximate whorls, or a compact spiral, of bracts immediately subtending an inflorescence, the bracts sometimes leaf-like, sometimes petaloid. |
lemma pl. lemmata, lemmas |
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STRUCTURE |
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The proximal bract of the (usually) two that immediately subtend the flower in a grass (Poaceae) floret; the other is the palea. |
infructescence 1 |
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STRUCTURE |
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A mature (fruiting) inflorescence (static sense). |
spongy |
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texture |
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Soft, light, discontinuous but cohesive, and somewhat resilient. |
septicidal |
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dehiscence |
fruit |
Splitting longitudinally into or through the suture(s) in the outer wall and, if present, through the septum(-a) between locules, the latter thus opened indirectly to the outside. |
coleorhiza |
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STRUCTURE |
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A sheath-like structure enclosing the radicle (embryonic root) in an embryo; esp. in Poaceae (Gramineae). |
costal |
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insertion |
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Upon or otherwise directly associated with the costa(e) of a laminar structure. |
sterile |
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reproduction |
plant, reproductive structure |
Not producing functional spores, gametes, pollen, ovules, seeds, or other propagules. |
convolute 3 |
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vernation |
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Each rolled laterally and wholly surrounded by and/or surrounding the one(s) next adjacent. |
microphyll |
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STRUCTURE |
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A small, lateral, leaf-like enation that, evolutionarily, is not a true leaf, i.e., whose vasculature, if any, consists of only a single median strand not ontogenetically integral with the vasculature of the bearing stem and not associated with leaf gaps in the stele of the stem; in Bryophyta, Psilotophyta, Lycopodiophyta, Equisetophyta. |
cyathiform |
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solid shape |
perianth, calyx, corolla, pappus |
Having a cupulate tube and an indistinct, erect limb. See also cotyliform, urceolate (urn-shaped). |
matted |
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habit |
plants |
Growing in extensive, low, dense aggregations, sometimes with the stems of different plants intertwined. |
nectariferous |
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exudation |
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Producing and secreting nectar; when glands are nectariferous, they are usually indicated nominatively as nectaries. |
didynamous |
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architecture |
flower, androecium |
Diadelphous with two stamens in each set. See also tetradynamous. |
symmetric(al) 1 |
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architecture |
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Divisible into essentially equal halves along one or more lines or planes. |
antrorse |
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orientation |
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Directed forward or upward, toward the distal end of the context of reference, parallel or at an acute angle to the bearing structure. |
obtrulloid |
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solid shape |
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Inversely trulloid. |
nutrition |
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CHARACTER |
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Mode of acquiring nutrients. |
asymmetric(al) 1 |
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architecture |
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Not divisible into essentially equal halves along any line or plane. |
tendril |
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STRUCTURE |
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A slender stem branch, modified leaf, or portion of a leaf that twines about a supporting structure. |
areolate |
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relief |
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Having numerous, small, irregularly disposed, transversely angular, shallow depressions or low protrusions overall. |
epichilium |
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STRUCTURE |
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The distal portion of a labellum (lip) that has distinct proximal, distal, and sometimes also central parts; in Orchidaceae. See also hypochilium, mesochilium. |
opposite 2 |
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arrangement |
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Having the members of each whorl inserted directly above and/or below those of the next adjacent whorl(s). See also antipetalous, antisepalous. |
trulloid |
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solid shape |
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Elongate, basically square in transverse section, broadest below the middle, regularly attenuate to angular ends, all faces essentially plane. See also obtrulloid. |
elongate |
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plane shape |
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Longer in one dimension than in any other. |