floricane |
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STRUCTURE |
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A biennial or perennial stem after it has begun flowering, when that does not occur until at least its second season of growth; applied especially to the stems of brambles (Rubus spp.). |
reproduction |
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CHARACTER |
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Type, morphology, disposition, function and/or dissemination of reproductive structures. |
herb |
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nominative |
plant |
Annual, biennial, or perennial with no woody (lignified) tissue in any part of the shoot; when persisting over more than one growing season, the parts of the shoot dying back seasonally. |
raphal |
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derivation |
aril |
Produced or resulting from a modification of the raphe. |
rounded |
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base |
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Convex overall and more or less regularly curved. |
hypogynous |
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insertion |
perianth, calyx, corolla, androecium |
Entirely free from the gynoecium or any floral cup, arising from a level proximal or lateral to the base of the gynoecium. See also epigynous, perigynous. |
homosporous |
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reproduction |
taxon |
Producing only one type of spore, each spore giving rise to a gametophyte that bears gametangia of both sexual types. |
antisepalous |
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insertion |
equivalent floral structures |
Each inserted directly above or below a sepal. In place of this term, the phrase "opposite the sepals" is often used, but that contradicts the sense of opposite as otherwise employed (arrangement of lateral structures along an axis) and should be avoided. |
interrupted 1 |
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architecture |
foliaceous structure |
Compound with the leaflets alternately large and small. |
inflated |
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solid shape |
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Relatively thin-walled with an essentially empty interior largely enclosed by the walls, which are convex overall and appear taut, as though from internal pressure. See also swollen (turgid, tumid), which is not clearly distinct in its application. |
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. |
spadix pl. spadices |
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STRUCTURE |
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A thick, fleshy, primary inflorescence axis bearing sessile flowers more or less sunken into its surface, the whole subtended and sometimes partially enclosed by a specialized bract, the spathe; esp. in Araceae. |
ligule 2 |
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STRUCTURE |
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An adaxial, distal enation from a leaf sheath, especially in most grasses (Poaceae) and sedges (Cyperaceae); usually unitary and membranous, sometimes instead consisting of a row of ciliate processes. See also hastula. |
muticous |
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apex |
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Lacking a distinct terminal point (when one might be expected). |
campylotropous |
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orientation |
ovule |
Having the (reniform) ovule curved toward the ovary wall, the micropyle facing the wall, and the funiculus attached near the center of the concave side, the curvature and displacement of funicular insertion due to asymmetrical growth during ontogenesis. |
supramedial |
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insertion |
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Just above the middle of the structure in point. |
decumbent |
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habit |
axis |
Reclining upon the substrate proximally, ascending to erect distally. |
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. |
oblong 1 |
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plane shape |
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Compressed-elliptic, the sides approximately parallel from near one end to near the other. See also elliptic(al) (oval). |
annual 2 |
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nominative |
plant |
Of annual duration. |
dorsifixed |
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fixation |
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Attached on the abaxial side well above the base. |
nodulose |
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solid shape |
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Diminutively nodose; esp. roots of Fabaceae (Leguminosae), the nodules harboring nitrogen-fixing bacteria. |
coalescent |
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fusion |
equivalent and/or dissimilar structures |
Partially and irregularly coherent and/or adherent. |
circumcaulous |
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position |
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Upon and surrounding the stem. |
toothlet |
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STRUCTURE |
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A diminutive tooth (dens). See also sawtooth, sawtoothlet, scallop (crena), scalloplet (crenule). |