hemispheric(al) |
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solid shape |
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Half-spheric(al); broadest at the base and uniformly rounded to the apex, circular in any transverse section, and half-circular in any median longitudinal section. |
micropyle |
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FEATURE |
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The small pore in the integuments of an ovule at its apex, through which the pollen tube grows; or the corresponding aperture or scar in the coat of the seed that develops subsequently. |
pseudoterminal |
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insertion |
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Only apparently terminal; originally subapical but displaced toward the apex by differential growth during development. |
deltate |
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plane shape |
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Equilaterally triangular, broadest at the base, and regularly attenuate to an angular apex. See also obdeltate. |
axillary |
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insertion |
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Within the axil; nodal and at or very close to the vertex of the distal angle between a lateral structure, especially a leaf, and the axis that bears it. |
circumscissile |
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dehiscence |
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Splitting transversely through the exterior wall about its entire circumference, the resulting upper cap-like portion falling away. |
samara |
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nominative |
fruit |
Dry, indehiscent and having one or more integral alate portions that aid in aerial dispersal. |
gynandrous |
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architecture |
flower |
Having the androecium adnate to the gynoecium. |
zygomorphic |
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architecture |
perianth, calyx, corolla |
Bilaterally symmetric; divisible into two essentially equal portions along only one median logitudinal plane. |
eucamptodromous |
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venation |
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Having a single median primary vein that branches to either side along the length of the lamina, the secondary veins upwardly arcuate, gradually becoming indistinct interior to the margin, and serially interconnected by cross-branches without formation of marginal loops. |
diplotegium pl. diplotegia |
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nominative |
fruit |
A pyxis with accessory tissue adnate to the pericarp; derived from an inferior ovary. |
synanthous |
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maturation |
non-floral structure |
Maturing at the same time as the flowers. See also coetaneous. |
farina pl. farinae, farinas |
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SUBSTANCE |
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A dry, meal- or flour-like covering. |
angular |
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plane shape |
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Having sides that meet at acute or obtuse angles. |
…angular 1 |
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arrangement |
bundle scars |
Forming a figure with the number of sides indicated by the prefix. |
vestiture |
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STRUCTURE / SUBSTANCE |
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See vesture. |
pericolpate |
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architecture |
pollen grain |
Having more than three surficial grooves (colpi) oriented such that some or all of them cross meridians. |
…ternate |
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architecture |
foliaceous structure |
Compound with the number of orders of leaflets indicated by the prefix, each order ternate; as in biternate, thrice-ternate. |
rachilla 1 var. rhachilla |
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STRUCTURE |
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A second- or higher-order axis of a compound leaf blade, bearing higher-order rachillae, leaflets, pinnules and/or tendrils. |
leaf-opposed |
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position |
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Nodal and directly opposite the leaf. |
internodal |
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insertion |
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Upon or otherwise directly associated with the internodes. |
cladodromous |
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venation |
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Having a single median primary vein that branches to either side along its length, the secondary veins running thence toward the margin, but freely ramifying and becoming indistinct before reaching it. |
spathulate |
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plane shape |
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See spatula-shaped, spatulate. |
second glume |
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STRUCTURE |
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The upper (distal) member of a pair of small bracts inserted at the base of a grass (Poaceae) spikelet. |
brochidodromous |
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venation |
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Having a single median primary vein that branches to either side along its length, the secondary veins incurving strongly near but short of the margin, interconnecting serially, and forming a succession of marginal loops. |