stilt root |
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STRUCTURE |
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A relatively stout or strong adventitious root arising from a woody stem branch and extending downward directly toward the substrate, within which it ultimately becomes anchored, thus supporting the branch of origin; as in some Ficus (Moraceae). |
discal |
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position |
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Upon or otherwise directly associated with the floral disc. |
axillary |
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position |
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Within the axil; nodal and at or very close to the vertex of the distal angle between a lateral structure, especially a leaf, and the axis that bears it. |
pubescent 1 (broad sense) |
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pubescence |
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Bearing trichomes. This is one of the most ambiguous terms in the botanical lexicon; it should not be used unless its intended meaning is explicit. |
trichome |
> bristle, capillus, glochid, glochidium, hair, lepis, scale, seta, squama, squamella, squamule; >< cilium |
STRUCTURE |
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Any superficial, unicellular or multicellular structure arising entirely from an epidermis. Unlike other epidermal enations or coverings, trichomes are cellular structures. |
medullose |
= pithy |
texture |
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Loose or spongy internally, denser and firmer externally. |
flanged |
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plane shape |
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Having a relatively broad circumferential rim or ridge that protrudes laterally. |
papilla pl. papillae |
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FEATURE |
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A small, conoidal protrusion resembling a pimple. See also pustule (blister, bulla). |
enzymatic |
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exudation |
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Secreting a digestive exoenzyme; in carnivorous plants. |
reticulodromous |
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venation |
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Having a single median primary vein that branches to either side along the length of the lamina, the secondary veins running thence toward the margin, branching repeatedly, becoming less distinct, and yielding a dense higher-order reticulum near the margin. |
vallecular |
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position |
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In or otherwise directly associated with the valleculae; esp. in fruits of Apiaceae (Umbelliferae). |
worm-shaped |
= vermiculate |
solid shape |
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Basically cylindric, elongate, and slender with bluntly rounded ends, variously curved over its length. |
small-dotted |
= puncticulate |
relief |
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Finely dotted (punctate). |
headless 1 |
= acephalous |
architecture |
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Not terminated or surmounted by a head-like structure, esp. when one might be expected. |
crest |
= crista |
STRUCTURE |
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A laterally elongate, relatively thin, irregular or notched, apical protrusion. |
pinnatifid |
> pinnatisect; < pinnate |
plane shape |
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Pinnately divided. |
latex pl. latices, latexes |
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SUBSTANCE |
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A moderately viscous and sticky exudate, often milky, sometimes otherwise colored or clear. Overlaps conceptually with gum. |
bifurcate |
< forked, furcate |
solid shape |
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Having two terminal, antrorse branches or divisions arising from a common point or level, like the prongs of a fork. |
tiered |
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arrangement |
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In two or more rows that are arrayed one above another. |
few-… |
= oligo… |
prefix |
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Indicating presence of or constitution by a relatively small number of entities of the type denoted by the term's stem; as in few-celled, few-flowered, few-seeded. See also many… (multi-…, pluri…, poly…). |
scale 2 |
> lepis, squama, squamella, squamule; < trichome |
STRUCTURE |
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A planate trichome. |
collar 1 |
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STRUCTURE |
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The free portion (if any) of a floral tube, distal to its casing and/or neck when one or both is/are present. |
inclinate |
= declinate |
orientation |
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Bent or curved downward or forward. |
eglandular |
= glandless |
architecture |
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Lacking glands. |
macula pl. maculae |
= blotch, spot |
FEATURE |
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An area that differs in color from the rest of a structure's surface, usually due to differing coloration. See also eyespot. |