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corolla tube 1 |
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STRUCTURE |
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A relatively narrow, fully connate portion of a sympetalous (gamopetalous) corolla proximal to a broader portion (limb) that comprises the distinct or connate distal portions of the petals; except in bisexual or staminate disc florets of Asteraceae (Compositae). |
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canalicular |
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position |
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Upon or otherwise directly associated with the channel of a petiole or petiolule. |
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petiolar |
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insertion |
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Upon or otherwise directly associated with the petioles. |
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sorus pl. sori |
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STRUCTURE |
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A cluster of sporangia borne upon a fertile frond, usually on its abaxial surface; often covered during maturation by a protective membrane, the indusium, that is an outgrowth from the epidermis; in Polypodiophyta. |
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epigynous |
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insertion |
perianth, calyx, corolla, androecium |
Having its proximal portion adnate to the full length of the gynoecium, the free portion thus arising from the apex of the gynoecium. See also hypogynous, perigynous. |
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antisepalous |
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position |
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. |
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muriculate |
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relief |
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Finely muricate. |
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retuse |
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apex |
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Round overall with an obtuse terminal sinus. |
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syncolpate |
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architecture |
pollen grain |
Having two or more fused or confluent surficial grooves (colpi). |
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laminar 1 |
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insertion |
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Upon or otherwise directly associated with the lamina (blade) of a foliaceous structure. |
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spinulose |
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margin |
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Finely spinose. |
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habit |
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CHARACTER |
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General appearance and/or function, usually including explicit or implicit reference to one or more aspects of habitat or other features of the external environment; a logically imprecise traditional category of terms that overlaps conceptually with architecture, arrangement, duration, insertion, location, orientation, position, shape, and texture. |
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node |
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STRUCTURE |
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One of the evident sectors of a stem that occur sequentially along its length and from which leaves (megaphylls) and lateral branches arise exogenously. The anatomy of nodes differs from, but is not abruptly distinct longitudinally from, that of the intervening sectors (internodes), with which it is smoothly confluent and from which is distinguished by the lateral transit and egress of vascular traces interconnecting the stem and the leaves and branches that it bears. |
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tertiary vein |
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STRUCTURE |
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A strand belonging to the third order of vasculature in a leaf or other basically laminar structure, except when that is the ultimate order (consisting of veinlets); branching from a primary or secondary vein. See also costa, lateral vein, primary vein, rib, secondary vein, veinlet. |
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cuniculate |
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solid shape |
elongate structure |
Hollow over a significant part of its length, the interior open at the end of the hollow portion. |
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chaff 2 |
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STRUCTURE |
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Collectively, the glumes, lemmata, and paleae of mature spikelets; in Poaceae (Gramineae). |
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pollen |
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STRUCTURE |
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Collectively, the spores or grains produced within the thecae of anthers, each containing a very small microgametophyte (or its evolutionary homologue); serving as disseminules from which microgametes are released after transport to a receptive micropylar pollen droplet (in Pinophyta) or stigma (in Magnoliophyta) by a variety of vectors, notably wind, water, insects, bats, and birds. |
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oblong 2 |
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solid shape |
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Compressed-ellipsoid, the sides approximately parallel from near one end to near the other. See also ellipsoid(al). |
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decurved |
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orientation |
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Curving abaxially. See also incurved. |
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clambering |
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habit |
plant, axis |
Reclining upon and spreading across other plants or objects without the aid of special holding structures or growth patterns. |
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linear 1 |
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arrangement |
bundle scars |
Disposed in a more or less straight line. |
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stephanocolpate |
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architecture |
pollen grain |
Having more than three surficial grooves (colpi) oriented meridionally. |
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first glume |
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STRUCTURE |
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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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hirtellous |
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pubescence |
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Finely hirsute. |
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scaly 2 |
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architecture |
bud, bulb |
Invested by scale-like (squamiform) structures. |
