involucral bract |
= phyllary; < bract (broad sense) |
STRUCTURE |
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One of the bracts composing the involucre of a capitulum (head,); in Asteraceae (Compositae). |
symmetric(al) 1 |
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architecture |
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Divisible into essentially equal halves along one or more lines or planes. |
conspicuous |
> showy |
manifestation |
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Prominently evident. |
bulla pl. bullae |
= blister, pustule |
FEATURE |
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A relatively coarse, rounded protrusion or convexity. See also papilla. |
ridge |
|
FEATURE |
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A very narrow, elongate, relatively low protrusion; esp. on fruits in Apiaceae (Umbelliferae). |
obconic(al) |
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solid shape |
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Transversely round, essentially triangular in median longitudinal section, and broadest distally; inversely conic(al) (cone-shaped). |
downy |
= pubescent |
pubescence |
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Of or bearing relatively short, slender, soft, more or less erect, capillate trichomes. See also puberulent. |
lens-shaped 2 |
= biconvex, lenticular |
solid shape |
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Relatively thin with two round, convex, opposite broad faces intersecting acutely at the circumferential edge; like a double-convex lens. See also disciform (discoid), meniscoid. |
translator arm |
= caudicle |
STRUCTURE |
|
An attenuate end portion by which a pollinium adheres to a pollinating insect, either directly or by means of a terminal viscidium, the latter, when present, sometimes attached by an intervening stipe; esp. in Asclepiadaceae, Orchidaceae. |
cupulate |
= calyciform, cup-shaped |
solid shape |
|
Truncate-globose with the distal margin more or less entire; like the bowl of a cup. |
ceraceous 2 |
cereous, waxen, waxy |
texture |
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Having the consistency of wax. |
scrotiform |
= scrotum-shaped |
solid shape |
|
Saccate (bag-, pouch- or sack-shaped) and somewhat swollen bilaterally in the distal portion; like a scrotum. |
palmatifid |
|
solid shape |
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Palmately lobate; having three or more lobes whose longitudinal axes radiate from a common point. |
infrabracteal |
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insertion |
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Upon the axis directly below a bract insertion. |
sulcus pl. sulci |
= colpus, fossula, furrow, groove, vallecula |
FEATURE |
|
An elongate depression that is relatively shallow and narrow. |
bracteate |
= bracted |
architecture |
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Bearing or subtended by one or more bracts. |
unisexual |
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reproduction |
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Having functional reproductive structures of only one sex. See also imperfect, pistillate, staminate. |
needle |
< leaf, macrophyll (not recommended), megaphyll |
STRUCTURE |
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A relatively stiff, compressed-acerose leaf; in Pinophyta. |
discolor(ous) |
> bicolor(ous) |
coloration |
|
Having surfaces of different colors; esp. leaves with differently colored adaxial and abaxial surfaces. |
galeiform |
= galeate, helmet-shaped |
solid shape |
|
Convex overall with a more or less smoothly curved apex, relatively thin-walled and essentially hollow with the interior open to one side below the distal portion; resembling a helmet. See also cuculliform (cucullate, hood-shaped), which overlaps conceptually. |
composite |
= compound |
architecture |
|
Unitary as a whole but comprising two or more equivalent substructural entities, these topologically distinct (e.g., leaflets in a compound leaf) or not (e.g., carpels in a compound pistil). |
sinistrorse |
= leftward |
orientation |
|
Directed to the left, relative to the direction of growth along an explicit or implicit axis of reference. See also dextrorse (rightward). |
phyllary |
= involucral bract; < bract (broad sense) |
STRUCTURE |
|
One of the bracts composing the involucre of a capitulum (head); in Asteraceae (Compositae). |
lancehead-shaped 1 |
= lanceolate |
plane shape |
|
Elongate, moderately narrow, broadest just above the base and gradually attenuate toward the apex, the sides more or less straight; like the outline of the broad lateral face of a lance head. See also oblanceolate. |
tholiform |
= dome-shaped |
solid shape |
|
Convex overall, broadest at the base, and transversely more or less circular to elliptical throughout. |