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vernation |
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CHARACTER |
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Disposition of leaves in the bud. |
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vallecular |
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insertion |
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In or otherwise directly associated with the valleculae; esp. in fruits of Apiaceae (Umbelliferae). |
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floral |
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position |
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Upon, within, or associated with the flowers. |
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pseudostem |
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STRUCTURE |
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A structure that resembles a stem but is not part of the axial system of a shoot, lacking anatomical differentiation into nodes and internodes. |
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glandular 2 |
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exudation |
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Anatomically distinct and producing and exuding a particular substance. |
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pyxis pl. pyxides |
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nominative |
fruit |
Like a capsule but circumscissile, the one or more seeds being released from the locule(s) upon separation of the distal, cap-like portion of the pericarp. See also diplotegium. |
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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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bud scale |
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STRUCTURE |
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A scale that, alone or aggregated with others, envelops and protects a bud. |
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internodal |
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insertion |
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Upon or otherwise directly associated with the internodes. |
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sellaeform |
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solid shape |
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See selliform. |
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simple 1 |
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architecture |
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Externally unitary and comprising only one basic morphological unit; not compound in either sense of that term. |
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connate |
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fusion |
equivalent structures |
Intimately fused, with strong histological continuity. |
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leaf scar |
|
FEATURE |
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A scar on a twig or stem due to abscission of a megaphyll; having an outline like that of a transverse section through the base of the petiole, sheath, or blade that was inserted there. |
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alete |
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architecture |
spore |
Lacking a tetrad scar (surficial ridge or angle resulting from coherence with others produced from the same spore mother cell). |
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andropetalous 1 |
|
architecture |
flower, androecium |
Having petaloid, sterile stamens. |
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apolar |
|
architecture |
pollen grain, spore |
Lacking morphologically evident polarity. |
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sub-basifixed |
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fixation |
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Attached just above its base. |
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disarticulating |
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architecture |
axis |
Articulate(d) and with the main portions of the whole separating at the joints upon maturity or senescence. |
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tomentulose |
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pubescence |
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Finely tomentose. |
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episepalous |
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insertion |
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Upon the sepals, or partially adnate thereto and apparently arising therefrom. |
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phyllopodium pl. phyllopodia |
|
STRUCTURE |
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A stem-like axis composed of fused leaf bases; esp. in Arecaceae (Palmae), Musaceae. |
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first glume |
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STRUCTURE |
|
The lower (proximal) or sometimes solitary small bract inserted at the base of a grass (Poaceae) spikelet, the second glume, when present, inserted immediately above (distal to) it. |
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pericolporate |
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architecture |
pollen grain |
Pericolpate, each groove containing a pore. |
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polyadal |
|
arrangement |
pollen |
Shed in groups of more than four, each group comprising grains from two or more original tetrads, the latter intact or not. |
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vallecular |
|
position |
|
In or otherwise directly associated with the valleculae; esp. in fruits of Apiaceae (Umbelliferae). |
