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vallecular |
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position |
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In or otherwise directly associated with the valleculae; esp. in fruits of Apiaceae (Umbelliferae). |
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epipetalous |
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insertion |
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Upon the petals, or partially adnate thereto and apparently arising therefrom. |
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perennial 2 |
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nominative |
plant |
Of perennial duration. |
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infrapetiolar |
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insertion |
bud |
Axillary and surrounded by the petiole base at maturity. |
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umbel |
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nominative |
inflorescence |
Pedunculate, determinate or indeterminate, simple or compound and apparently polychotomous, with one or more pedicellate flowers terminating each ultimate axis, the pedicels of each such floral set and the branches (rays) arising from each axial subdivision diverging from each other like the ribs of an umbrella, the whole plane, convex or concave distally. |
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ridged |
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solid shape |
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Having one or more ridges; esp. fruits of Apiaceae (Umbelliferae). |
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craspedodromous, simple- |
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venation |
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Having a midvein that branches to either side along the length of the lamina, the secondary veins and their branches all running toward and terminating at the margin. |
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allagostemonous |
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architecture |
flower, androecium |
Having the stamens inserted alternately upon petals and the receptacle. |
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chaff 2 |
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STRUCTURE |
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Collectively, the glumes, lemmata, and paleae of mature spikelets; in Poaceae (Gramineae). |
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oblate |
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plane shape |
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Symmetrically elongate and broader than long perpendicular to the developmental or polar axis. |
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cuboid |
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solid shape |
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Generally but not strictly cubic; more or less equilaterally six-sided, each side basically square. |
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andropetalous 2 |
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derivation |
flower, perianth, corolla |
Having some or all petals derived from stamens. |
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disc floret |
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STRUCTURE |
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A floret that has an actinomorphic corolla, is bisexual, functionally staminate, or functionally pistillate, and is borne in a radiate, discoid, disciform, or radiant capitulum (head) interior (distal) to any peripheral series of differing florets that may be present; in Asteraceae (Compositae). |
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branchlet |
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STRUCTURE |
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A branch of the highest or ultimate order. |
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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. |
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canalicular |
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insertion |
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Upon or otherwise directly associated with the channel of a petiole or petiolule. |
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pseudobulb |
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STRUCTURE |
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An enlarged internode of an aboveground stem, storing water and photosynthate, resembling a bulb; esp. in Orchidaceae. |
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apex pl. apices |
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CHARACTER |
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Configuration of the uppermost, distal, or terminal portion of a structure, its extent determined somewhat subjectively in relation to the shape of the structure as a whole. The concept of apex varies from one descriptive context to another, since the apex is not a clearly delimited, morphologically distinct entity. The terms for describing apical condition are not strictly coordinate logically — some are more inclusive than others, some describe conditions involving what can be regarded as appendages, and some refer to the apex in a developmental as well as a strictly topological sense — and precise characterization may require using more than one descriptor. The semantic antecedent of some descriptors is "apex," whereas the antecedent of others is the structure as a whole (e.g., leaf ). |
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…colporate |
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architecture |
pollen grain |
Having the number of colpi indicated by the prefix, each containing a pore; as in dicolporate, 3-colporate. |
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caducous |
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duration |
structure |
Deciduous upon or immediately after emergence, with little or no evident senescence beforehand. |
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flagellum pl. flagella |
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STRUCTURE |
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A very slender whip-like structure that extends from the main body of an antherozoid and, by active undulation, propels the cell through a liquid medium. |
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mamilla pl. mamillae |
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STRUCTURE |
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A nipple- or teat-shaped protrusion. |
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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. |
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neuter |
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architecture |
flower, floret |
Lacking both stamens and pistils. |
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samara |
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nominative |
fruit |
Dry, indehiscent and having one or more integral alate portions that aid in aerial dispersal. |
