lumen pl. lumina |
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FEATURE |
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A space enclosed by the wall(s) or membrane(s) of a structure. |
basicaulous |
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position |
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At or very near the stem base. |
halberd-head-shaped 2 |
= hastate |
plane shape |
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Basically triangular with an acute apex and two large, widely divergent basal lobes, each generally triangular and distally acute; like the stylized outline of the broad lateral face of a halberd head. |
pustule |
= blister, bulla |
FEATURE |
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A relatively coarse, rounded protrusion or convexity. See also papilla. |
androgynophore |
< stalk |
STRUCTURE |
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A stalk that rises above the level of perianth insertion and bears the free portions of both androecium and gynoecium from its summit; as in Passifloraceae. |
deltate |
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plane shape |
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Equilaterally triangular, broadest at the base, and regularly attenuate to an angular apex. See also obdeltate. |
viscid 1 |
< glutinous |
coating |
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Of a sticky substance. |
deltoid |
< three-angled, trigonous, triquetrous |
solid shape |
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Three-angular (trigonous, triquetrous), broadest at the base, and regularly attenuate to an angular apex; equilaterally pyramidal with three lateral faces. See also obdeltoid. |
laevigate 1 |
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relief |
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Very smooth. |
showy |
< conspicuous |
manifestation |
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Prominently evident and attractive due to size, shape and/or coloration. |
unilateral 3 |
= one-sided |
insertion |
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Upon or arising from one side only of the bearing structure. |
obtrulliform |
= obtrullate |
plane shape |
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Inversely trulliform (trowel-shaped, trullate). |
mucous 1 |
= mucilaginous; < glutinous |
coating |
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Of a slimy substance, or becoming so upon wetting. |
headless 2 |
= acephalous |
solid shape |
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Not terminating in a head-like portion, esp. when one might be expected. |
penicillate |
= broom-shaped, muscariform |
solid shape |
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Having a proximal axis that bears a distal cluster of elongate slender branches or appendages, these variously ascending to erect; like a broom. |
dropper |
= tuberoid |
STRUCTURE |
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An axial outgrowth that descends from a bulb and eventually forms a new bulb; esp. in Orchidaceae. |
remote |
= distant |
arrangement |
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Disposed relatively far from one another along the axis. |
crescent-shaped |
= lunate |
plane shape |
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Arcuate, broadest at the middle, and attenuate to acute ends; like the stylized outline of a first-quarter moon. |
checkered 2 |
= tessellate |
relief |
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Having a pattern of regularly disposed squares marked by raised or depressed vasculature. |
squamate |
= lepidote, squamose; < scaly |
pubescence |
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Bearing squamae (lepides). See also squamellose. |
axe-shaped |
= dolabriform |
solid shape |
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Elongate, basally terete, becoming strongly compressed toward an abruptly and unilaterally broader apex; like an axe (handle plus head). |
erect |
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orientation |
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Perpendicular to the horizon or to the general plane of a bearing structure. |
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. |
veined |
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architecture |
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Having one or more orders of evident vasculature. |
isthmus |
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STRUCTURE |
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A narrower portion connecting two wider or broader portions of an inclusive structure. |