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axil |
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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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sawtoothlet |
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STRUCTURE |
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A diminutive sawtooth. See also scallop (crena), scalloplet (crenule), tooth (dens), toothlet. |
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derivation |
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CHARACTER |
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Ontogenetic origin. |
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basiramous |
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architecture |
axis |
Branching at or near the base. See also basicauliramous. |
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ostiole |
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STRUCTURE |
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The distal aperture of a syconium (fig); in Ficus (Moraceae). |
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tuber |
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STRUCTURE |
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An enlarged, basically subterranean stem segment or thallus outgrowth containing a high proportion of storage tissue and functioning as a perennating and often vegetatively propagative structure. |
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diplecolobal |
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arrangement |
cotyledons |
Incumbent but with the cotyledons folded together twice or more, the folds transverse. |
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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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acetabuliform |
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solid shape |
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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. |
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imperfect |
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architecture |
flower |
Having either stamens or pistils absent or non-functional, thus unisexual. |
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paniculate |
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architecture |
inflorescence |
Comprising one or more panicles. |
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adventitious root |
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STRUCTURE |
|
A root that arises laterally from some part of a shoot, often from the lower portion of a main stem. |
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infrapetiolar |
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position |
bud |
Axillary and surrounded by the petiole base at maturity. |
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sheathing 2 |
|
base |
laminar structure |
Terete or involute and closely enclosing the supporting axis for some distance above the point of insertion. |
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utricle |
|
nominative |
fruit |
Dry, indehiscent, one-seeded and with the pericarp thin and free from the seed; derived from a single, superior, simple ovary. |
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mesocarp |
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STRUCTURE |
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The middle tissue layer of the pericarp of a fruit. |
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callus |
|
FEATURE |
|
A small, relatively hard covering, outgrowth, or swelling of tissue; esp. in axes of grass (Poaceae) inflorescences just distal to points of eventual disarticulation. |
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iridescent |
|
coloration |
|
Reflecting a pattern colors from throughout the visible spectrum, the pattern changing with the angle of view. |
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perigynium 1 pl. perigynia |
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STRUCTURE |
|
Two whorls of bracts, scales or setae immediately subtending the ovary, sometimes cupulate (cup-shaped) or ampulliform (flask-shaped, lageniform) and investing the fruit (achene); in Cyperaceae. |
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entire |
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margin |
|
Uninterrupted; not deviating significantly from its general line, thus lacking any localized convexities or concavities. |
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annulus 1 pl. annuli |
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STRUCTURE |
|
A small ring-like protrusion from the strobilar stalk near its base and below the lowermost sporangiophores, sometimes bearing small sporangia; esp. in Equisetum. |
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mottled |
|
coloration |
|
Having one or more indistinctly delineated, irregularly shaped, areas of varying size and contrasting hue and/or intensity. |
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costule |
|
STRUCTURE |
|
A longitudinal primary vein in a diminutive laminar structure, such as the blade of a leaflet, pinna or pinnule; a diminutive costa (rib). |
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…pinnate |
|
architecture |
foliaceous structure |
Compound with the number of orders of leaflets indicated by the prefix, each order pinnate; as in bipinnate, tripinnate. |
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spiculate |
|
relief |
|
Having small, fine, stiff, acute protrusions that resemble little spikes. See also scabridulous (scabrellate, scabrellous, which is not clearly distinct in its application. |
