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hypanthium 2 (strict sense) pl. hypanthia |
= floral cup (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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hyphodromous |
= one-veined, single-veined |
venation |
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Having one median, primary vein and no other venation externally evident. |
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hypochilium |
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STRUCTURE |
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The proximal portion of a labellum (lip) that has distinct proximal, distal, and sometimes also central parts; in Orchidaceae. See also epichilium, mesochilium. |
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hypocotyl |
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STRUCTURE |
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That portion of an embryo axis between the level of cotyledon insertion above and the root meristem (or radicle, if present) below. |
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hypocrateriform |
= salverform |
solid shape |
perianth, calyx, corolla |
Having a relatively long, slender tube and a divaricate, planate limb resembling a round platter. |
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hypogeal |
= hypogeous, subterranean |
location |
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Within the ground, beneath its surface; esp. of cotyledons following seed germination. |
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hypogeous |
= hypogeal, subterranean |
location |
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Within the ground, beneath its surface; esp. of cotyledons following seed germination. |
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hypogynium pl. hypogynia |
= gynophore; < 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; in Cyperaceae. |
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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. |
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hyponastic |
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development |
laminar structure |
Having the abaxial surface differentiating and growing faster than the adaxial surface, thus, until maturity, development of the former more advanced than the latter at any given time and the structure as a whole involute or incurved. |
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hypostom(at)ic |
= hypostomatous |
architecture |
foliaceous structure |
Having stomata on only the abaxial surface. |
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hypostomatous |
= hypostom(at)ic |
architecture |
foliaceous structure |
Having stomata on only the abaxial surface. |
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hysteranthous |
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maturation |
non-floral structure, esp. leaf |
Maturing later than the flowers. |
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hysterophyllous |
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maturation |
non-foliar structure, esp. flower |
Maturing later than the leaves. |
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idiogamous |
= autogamous, automictic, self-fertilizing, selfing; > geitonogamous |
reproduction |
taxon |
Having fertilization regularly involving gametes derived from the same plant. |
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imbricate(d) 1 |
= overlapping |
aestivation |
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Having members whorled or spirally inserted and overlapping one another, each overlapping or overlapped to either side, and also above or below if spirally arranged or in multiple whorls. |
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imbricate(d) 2 |
= overlapping |
arrangement |
planate structures |
Overlapping one another laterally and/or longitudinally. |
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immersed |
< sunken |
prominence |
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Deeply sunken. |
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imparipinnate |
= odd-pinnate |
architecture |
foliaceous structure |
Compound with each order pinnate and comprising an uneven number of members, one of them terminal. |
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imperfect |
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architecture |
flower |
Having either stamens or pistils absent or non-functional, thus unisexual. |
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impressed |
< sunken |
prominence |
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Shallowly sunken. |
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inaperturate |
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architecture |
pollen grain |
Lacking an aperture of any type. |
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incised |
= cut, lacerate, torn; > laciniate, slashed |
plane shape |
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Having straight to irregular lines of separation extending inward from the margin. See also cleft (dissected, divided, lobate, lobed, parted, partite, segmented). |
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inclinate |
= declinate |
orientation |
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Bent or curved downward or forward. |
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inclined |
= declined |
orientation |
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Directed downward or backward. |
