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corolla tube 2 |
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STRUCTURE |
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The portion of the corolla of a bisexual or staminate disc floret proximal to the level of filament insertion; in Asteraceae (Compositae). |
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pollinium pl. pollinia |
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STRUCTURE |
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A mass of coherent pollen grains disseminated as a unit by adhering to a pollinating insect, representing the entire content of a single theca or of fused thecae; often distally attenuate to a sterile caudicle (translator arm), which may attach to a viscidium, either directly or through an intervening stipe; esp. in Asclepiadaceae, Orchidaceae. |
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ray 2 |
= lamina |
STRUCTURE |
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The distal, relatively flat portion of the corolla of a ray floret, terminating in 0--4 teeth or lobes; in Asteraceae (Compositae). |
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scaly 1 |
> lepidote, squamate, squamellose, squamose |
pubescence |
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Bearing scales [squamae (lepides) or squamellae]. |
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floral cup 2 (strict sense) |
= hypanthium (strict sense) |
STRUCTURE |
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A marginal protrusion from or enlargement of the receptacle (torus) of a flower, encircling and wholly, partly or not at all adnate to the gynoecium, bearing the perianth and androecium. |
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solitary 1 |
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arrangement |
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Disposed singly, each remote from any others. |
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gynophore |
= hypogynium; < stalk, stipe (broad sense, not recommended) |
STRUCTURE |
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The basal portion of an ovary when constricted and stalk-like above the level of perianth insertion, bearing the main body of the pistil at its summit. |
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indehiscent |
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dehiscence |
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Not splitting or forming an aperture at maturity, the contents being released for dispersal only after decay, digestion, or erosion of the structure. |
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uncinate |
= hamate, hooked |
apex |
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Having a recurved terminal portion that resembles a hook. |
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bicolor(ous) |
< discolor(ous) |
coloration |
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Having two surfaces of different colors; esp. leaves with differently colored adaxial and abaxial surfaces. |
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abaxial |
= dorsal (not recommended) |
position |
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On or pertaining to the side or portion of a lateral structure that faces (or would face) away from the bearing axis when (or if) the axis of the lateral structure is (or were) oriented in the same general direction as the bearing axis. |
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apical |
< distal |
position |
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At or very near the developmental end or tip (apex) of a structure. |
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bifurcate |
< forked, furcate |
apex |
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Having two terminal, antrorse branches or divisions arising from a common point or level, like the prongs of a fork. |
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muticous |
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apex |
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Lacking a distinct terminal point (when one might be expected). |
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conjugate |
= geminate, paired |
arrangement |
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Inserted by pairs, the members of each fused or not. |
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pithy |
= medullose |
texture |
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Loose or spongy internally, denser and firmer externally. |
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decussate |
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arrangement |
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Opposite with successive pairs radially oriented at right angles to one another, thus polystichous with four equidistant ranks. |
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saddle-shaped |
= selliform |
solid shape |
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Relatively thin, broad and long, strongly compound-curved, concavely from end to end and convexly from side to side; like the generalized shape of a saddle. |
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fissure |
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FEATURE |
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A relatively narrow, split or crack in the outer tissue(s) of a structure. |
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lamella pl. lamellae |
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STRUCTURE |
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A thin layer of tissue that forms a plate within tissue of lesser density or between areas of empty space. |
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tubular |
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solid shape |
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Cylindric or attenuate-cylindric overall and with a hollow interior open at one or both ends. |
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whorl |
= cycle, series, verticil |
STRUCTURE |
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A set of three or more lateral structures that are inserted around an axis at the same level. |
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angular |
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plane shape |
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Having sides that meet at acute or obtuse angles. |
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bark |
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STRUCTURE |
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The outermost portion of any shoot or root axis having secondary growth, consisting of all those tissues outside the vascular cambium; sometimes exhibiting zonation into inner, living bark and outer, dead bark; usually described only as to external appearance. |
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mono… |
= one-…, single-…, uni… |
prefix |
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Indicating presence of or constitution by one entity of the type denoted by the term's stem; as in monandrous, monocolpate, monocyclic. See also entries for particular terms with this prefix whose meanings, at least in some applications, are more specific than usually indicated by such combination. |
