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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. |
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axis pl. axes |
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STRUCTURE |
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Any unitary and longitudinally continuous structure that bears laterally the subordinate portion(s), if any, of a plant root or shoot or any subdivision thereof and that represents the main line of structural development and/or symmetry distal to its origin, irrespective of the particular ontogenetic growth pattern involved. See also primary axis. |
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fruit |
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STRUCTURE |
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Any unitary seed-bearing structure of a flowering plant, consisting of the matured or ripened pistil(s) of one or more flowers along with any other floral or vegetative tissue(s) persisting adnate to them; characteristic of and unique to Magnoliophyta (Angiospermae). |
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prickle |
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STRUCTURE |
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Any unvascularized spine-like enation originating in the epidermis, cortex, or mesophyll of any shoot part. See also spine, thorn. |
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terminal |
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insertion |
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Apical and with the same developmental axis as the whole, of which it is the distalmost portion or appendage. |
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terminal |
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position |
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Apical and with the same developmental axis as the whole, of which it is the distalmost portion or appendage. |
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gynobasic |
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insertion |
style |
Apparently arising from the ovary base. |
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pseudomonadal |
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arrangement |
pollen |
Apparently monadal but each grain actually comprising an unseparated original tetrad in which the contiguous walls between component grains have dissolved. |
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erose 2 |
= eroded |
relief |
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Appearing as if chewed or gnawed; having very irregular localized deviations from its generalized line. |
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superposed 1 |
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arrangement |
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Approximate to congested, inserted directly above and below one another. |
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obdeltate |
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plane shape |
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Approximately equilaterally triangular, broadest distally, and regularly attenuate to an angular base; inversely deltate; equilaterally cuneate. |
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gongylodate |
= gongyloid, knob-shaped, knot-shaped, nodiform |
solid shape |
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Approximately globose, the surface convoluted or not, like a knob or knot; usually applied only to structures or components that are relatively small. |
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gongyloid |
= gongylodate, knob-shaped, knot-shaped, nodiform |
solid shape |
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Approximately globose, the surface convoluted or not, like a knob or knot; usually applied only to structures or components that are relatively small. |
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knob-shaped |
= gongylodate, gongyloid, knot-shaped, nodiform |
solid shape |
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Approximately globose, the surface convoluted or not, like a knob or knot; usually applied only to structures or components that are relatively small. |
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knot-shaped |
= gongylodate, gongyloid, knob-shaped, nodiform |
solid shape |
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Approximately globose, the surface convoluted or not, like a knob or knot; usually applied only to structures or components that are relatively small. |
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nodiform |
= gongylodate, gongyloid, knob-shaped, knot-shaped |
solid shape |
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Approximately globose, the surface convoluted or not, like a knob or knot; usually applied only to structures or components that are relatively small. |
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birettaform |
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solid shape |
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Approximately square in cross section and shallowly convex at the top; like a biretta (Roman Catholic cleric's hat). |
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bottom-rooted |
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habit |
plant |
Aquatic and rooted in the substrate beneath the water. |
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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. |
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lunate |
= crescent-shaped |
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. |
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botuliform |
= sausage-shaped |
solid shape |
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Arcuately cylindric with rounded ends. |
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sausage-shaped |
= botuliform |
solid shape |
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Arcuately cylindric with rounded ends. |
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subtending |
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insertion |
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Arising from the axis just below and very near to the base of some other specified lateral structure. This term is meaningless if the structure that is subtended is not indicated. |
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subtending |
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position |
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Arising from the axis just below and very near to the base of some other specified lateral structure. This term is meaningless if the structure that is subtended is not indicated. |
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adventitious |
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derivation |
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Arising more or less unpredictably from an organ, tissue, or site that is an unusual, abnormal, or atypical origin for structures of its type. |
