ocrea pl. ocreae var. ochrea |
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STRUCTURE |
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A tubular sheath that encircles a stem at a node, subtending a petiole; thought to have arisen evolutionarily by lateral fusion of two stipules; in Polygonaceae. |
crispate |
= crisped, curly |
margin |
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Having closely and irregularly spaced, irregularly shaped, often compound convexities that curve irregularly through three dimensions. |
hook-shaped |
= unciform |
solid shape |
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Very slenderly elongate with a more or less straight proximal portion and a recurved terminal portion, the whole resembling a hook. |
straight |
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course |
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Lacking significant curves or bends. |
pyrene 2 |
= stone |
STRUCTURE |
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The hard seed of a drupelet; esp. in Rosaceae. |
arillus pl. arilli |
= aril (strict sense); < aril (broad sense) |
STRUCTURE |
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An appendicular structure that wholly or partly envelops a seed and is an outgrowth from the funicle or raphe, and thus is ontogenetically derived from the placenta; usually fleshy or pulpy, sometimes spongy or tufted-capillate, often brightly colored. |
microsporangium pl. microsporangia |
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STRUCTURE |
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A sporangium that produces microspores. |
clinandrium pl. clinandria |
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FEATURE |
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The cavity in a floral column (gynostemium) within which the anthers are borne. |
velum pl. vela |
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STRUCTURE |
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A membranous adaxial flap or fold of vegetative tissue wholly or partly covering the sporangial cavity of a sporophyll; in Isoëtaceae. |
globose |
= globular, orbicular, rotund, spheric(al), spheroid(al) |
solid shape |
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Uniformly convex, circular in any median section and in outline when viewed from any angle; like a globe or sphere. |
spathe |
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STRUCTURE |
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A usually relatively large, sometimes showy, foliose bract subtending and sometimes partially enclosing an inflorescence, esp. a spadicate one; in Liliidae (monocotyledons). |
…partite |
? …cleft, …fid, …lobate, …lobed, …parted, …segmented |
plane shape |
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Having the number of lobes, divisions or segments indicated by the prefix; as in tripartite. |
symmetric(al) 1 |
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plane shape |
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Divisible into essentially equal halves along one or more lines or planes. |
epirhizal |
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position |
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Upon or arising from the roots. |
ridged |
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solid shape |
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Having one or more ridges; esp. fruits of Apiaceae (Umbelliferae). |
obcordate |
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plane shape |
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Inversely cordate (heart-shaped). |
coronal |
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position |
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Upon or otherwise directly associated with the corona. |
lenticel |
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STRUCTURE |
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A specialized, anatomically distinct structure within the periderm of a stem, consisting of comparatively spongy, sometimes suberized tissue distinct from others of the periderm; extending radially through the periderm and visible as a circular to elongate discontinuity in the color, texture, and/or relief of the outer surface of the stem; serving as a conduit for gas exchange between the stem interior and the atmosphere. |
translucent |
< hyaline, pellucid |
coloration |
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Transmitting light uniformly and diffusely. See also transparent. |
apiculum 1 pl. apicula |
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STRUCTURE |
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A short, slender, angular tip that is not notably harder or stiffer than the main body of the bearing structure. See also mucro. |
five-… |
= penta… |
prefix |
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Indicating presence of or constitution by five entities of the type denoted by the term's stem; as in five-grooved, five-stamened, five-tepaled. |
scrotum-shaped |
= scrotiform |
solid shape |
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Saccate (bag-, pouch- or sack-shaped) and somewhat swollen bilaterally in the distal portion; like a scrotum. |
decurved |
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orientation |
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Curving abaxially. See also incurved. |
acephalous 1 |
= headless |
architecture |
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Not terminated or surmounted by a head-like structure, esp. when one might be expected. |
infrafoliar |
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insertion |
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Upon the stem directly below a leaf insertion. |