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angular |
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plane shape |
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Having sides that meet at acute or obtuse angles. |
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germination 1 |
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CHARACTER |
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The process wherein a dormant embryo resumes active metabolism and growth, the primary root and shoot emerging from the seed coat, the young sporophyte thereupon entering the seedling stage. |
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monochasiate |
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architecture |
inflorescence |
Comprising one or more simple or compound monochasia. See also cincinnate, cymose, cymulose, dichasiate, helicoid-cymose, scorpioid-cymose. |
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reclinate |
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vernation |
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Each with its blade oriented downward and parallel to the proximal portion of its distally recurved petiole. |
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suprabracteal |
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insertion |
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Upon the axes, each directly above (distal to) and very near a point of bract insertion. |
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knee-rooted |
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architecture |
plant |
Having knee roots. |
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phanerocotyloid |
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germination |
seed |
Having the cotyledon(s) emerging from the seed coat. |
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viscidium pl. viscidia |
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STRUCTURE |
|
A small, viscid, glandular body of rostellar origin that becomes connected with a pollinium caudicle, either directly or through an intervening stipe, by which the pollinium attaches to a pollinating insect; in Orchidaceae. |
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epiphytic |
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habit |
plant |
Physically supported in its entirety by another plant through all or the major part of its life. |
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naked 2 |
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architecture |
bud |
Lacking enclosing protective scales, the outermost embryonic components exposed and not differing significantly from those within. See also perulate. |
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rhipidium pl. rhipidia |
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nominative |
inflorescence |
A cyme with the branches alternate and disposed in two opposite ranks along the main axis, the whole fan-like. |
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synstemonous |
|
architecture |
flower, androecium |
Having two or more stamens, some or all of them connate. |
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placenta pl. placentae, placentas |
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STRUCTURE |
|
An ovule-bearing zone of the tissue surface bordering an ovary locule; of merely topographic, not histological, significance; may be a part of the ovary wall proper or an extension from it, or a part of the central axis of the ovary or an extension from it. |
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wiry |
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architecture |
axis |
Relatively very narrow and elongate, tough, and resiliently flexible. |
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explosive |
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dehiscence |
|
Opening abruptly with almost instantaneous aperture formation and release of accumulated structural tensions, the contents thus forcibly expelled. |
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arillate |
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architecture |
seed |
Having an aril. |
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non-septate |
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architecture |
trichome |
Lacking transverse inter- or intracellular septa or partitions. |
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cuspidate |
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apex |
|
Tapering gradually to a rigid tip composed of both vascular and laminar tissues. |
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channel |
|
FEATURE |
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A longitudinal, transversely rounded depression; esp. along the adaxial surface of a petiole or petiolule. |
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lenticel |
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STRUCTURE |
|
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. |
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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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sap |
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SUBSTANCE |
|
Generally, the fluid content of a plant body; more precisely, the sugary fluid transported by the phloem. |
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deliquescent 2 |
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texture |
|
Delicately fleshy and liquifying at maturity or with pressure; e.g., petals of Tradescantia (Commelinaceae). |
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prolate |
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plane shape |
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Symmetrically elongate parallel to the developmental or polar axis. |
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fixed |
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fixation |
|
Attached to the bearing structure in a manner allowing no significant rotation or declination in relation to it. |