laciniate


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laciniate

[lə′sin·ē‚āt]
(biology)
Having a fringed border.
Narrowly and deeply incised to form irregular lobes, which may be pointed.
References in periodicals archive ?
Leaves opposite; stipules two per leaf, located at the flanks of the petiole base, narrowly triangular, minute, to 0.9 x 0.4 mm, reddish to brown, margin laciniate, prematurely deciduous; petiole 4-8 mm long, shallowly canaliculate, purplish red adaxially, green abaxially, with a ringlike articulation near its base; leaf blade elliptic to narrowly elliptic, 8-10 x 2.5-3 cm, dark green above, light green below, membranaceous, central vein yellowish on both sides, lateral veins 8-11 per side, plane to prominulous on both sides, margin entire, plane, base attenuate, apex acuminate.
paraguensis) and both with oblique bases; both species have pedicels between 0.1-0.6 cm long, sepals that are free, lanceolate and with laciniate margins, and corollas that are sigmoid with 4 external appendages at the limb.
Basal leaves 1.7-11 cm; petioles 1-6 cm, persistent, stramineus, flattened at base; blade undivided and oblanceolate with 5-7 subapical teeth, or pinnatifid and with 2-4 dentate to incised lateral lobes on each side; cauline leaves shortly petiolate to subsessile, laciniate, not auriculate at base.
Species similar to Psittacanthus lasianthus, from which it differs by the sympodial, densely puberulous, three-angled stems, ternate leaves, terminal dichasia, perfoliate bracts, a neck-bearing, not inflated corolla densely laciniate on its outer surface and a triangular, ligule on the inside of each petal, a ring-like nectary, and a micropapillose stigma versus percurrent, glabrous, circular stems, paired leaves, axillary dichasia, not perfoliate bracts, a neck-lacking, inflated corolla without laciniae on its outer surface and a finger-like ligule on the inside of each petal, a 4-lobed nectary, and a smooth stigma in P.
Calyx pale green, the sepals free, subequal, lanceolate, 1.2-1.8 x 0.2-0.3 cm, adaxially glandular with short headed trichomes, abaxially pilose with 10 celled trichomes; marginally laciniate. Corolla erect, yellow, the tube straight, slightly constricted at base and throat, curved downwards at the limb; 2.4 cm long, 0.6 cm wide at the middle, 0.3 cm wide at the constricted base, 0.4 cm at the troat; base dorsally gibbous, gibbosity 0.3 x 0.5 cm; limb bilabiate, the lobes patent, the two dorsal oblong, the others acute, 0.7 x 0.3 cm; corolla red outside and pilose at the middle of the tube, translucent at the limb; inside glandular with 2 celled trichomes, along the tube, whereas at the limb glandular only on the two dorsal lobes, with the two lateral and the ventral lobes glabrous.
Cypselae truncate at the apex, glabrous to pubescent; pappus of bristles filiform to narrowly paleaceous, laciniate to plumose, rarely crown-like.
Ligule a membranaceous rim, the tip laciniate, 1.5-3 mm long, truncate, glabrous, sometimes with a V-cut.
transgrading into small, easily detached, finely laciniate squamules ca.