annulus 1 pl. annuli |
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STRUCTURE |
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A small ring-like protrusion from the strobilar stalk near its base and below the lowermost sporangiophores, sometimes bearing small sporangia; esp. in Equisetum. |
rostellum 1 pl. rostella |
= beaklet |
STRUCTURE |
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A small rostrum (beak). |
papilla pl. papillae |
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FEATURE |
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A small, conoidal protrusion resembling a pimple. See also pustule (blister, bulla). |
squamella 2 pl. squamellae |
= squamule; < scale |
STRUCTURE |
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A small, dry bract borne on the compound receptacle (torus) of a capitulum (head); in Asteraceae (Compositae). |
squamule 2 |
= squamella; < scale |
STRUCTURE |
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A small, dry bract borne on the compound receptacle (torus) of a capitulum (head); in Asteraceae (Compositae). |
spicule |
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STRUCTURE |
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A small, fine, stiff, acute protrusion that resembles a little spike. |
dot |
= punctum |
FEATURE |
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A small, generally round sector of distinct coloration or relief. |
punctum pl. puncta |
= dot |
FEATURE |
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A small, generally round sector of distinct coloration or relief. |
embryotega pl. embryotegae, embryotegas |
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STRUCTURE |
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A small, hardened, lid-like portion of the testa (seed coat) at the micropyle of some seeds, detaching at germination. |
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. |
leaf 2 pl. leaves |
= microphyll |
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 Psilotophyta, Lycopodiophyta, Equisetophyta. |
ampulla pl. ampullae |
= bladder |
STRUCTURE |
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A small, membranous, hollow, flask-shaped, insectivorous structure borne on a submerged leaf; esp. in Lentibulariaceae. |
bladder |
= ampulla |
STRUCTURE |
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A small, membranous, hollow, flask-shaped, insectivorous structure borne on a submerged leaf; esp. in Lentibulariaceae. |
callus |
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FEATURE |
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A small, relatively hard covering, outgrowth, or swelling of tissue; esp. in axes of grass (Poaceae) inflorescences just distal to points of eventual disarticulation. |
nutlet |
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nominative |
fruit |
A small, relatively hard-coated mericarp; esp. in Lamiaceae (Labiatae), Verbenaceae. |
fovea pl. foveae |
= pit, scrobis |
FEATURE |
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A small, rounded depression. |
pit |
= fovea, scrobis |
FEATURE |
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A small, rounded depression. |
scrobis pl. scrobes |
= fovea, pit |
FEATURE |
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A small, rounded depression. |
tubercle |
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FEATURE |
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A small, rounded, knot-like swelling or wart-like protrusion. |
auricle |
= ear |
STRUCTURE |
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A small, rounded, lateral lobe at the base of a laminar structure, lying in more or less the same plane as the remainder of the lamina. |
ear |
= auricle |
STRUCTURE |
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A small, rounded, lateral lobe at the base of a laminar structure, lying in more or less the same plane as the remainder of the lamina. |
stipe 1 |
< stalk |
STRUCTURE |
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A small, slender connection between a pollinium caudicle and a viscidium; in Orchidaceae. |
viscidium pl. viscidia |
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STRUCTURE |
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A small, viscid, glandular body of rostellar origin that becomes connected with a pollinium caudicle, either directly or through an intervening stipe, by which the pollinium attaches to a pollinating insect; in Orchidaceae. |
bundle scar |
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FEATURE |
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A smaller scar within the bounds of a leaf scar at the point where a vascular bundle traversed the abscission layer between stem and leaf. |
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. |