mericarp


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mericarp

(ˈmɛrɪˌkɑːp)
n
(Botany) botany one of the one-seeded portions into which a schizocarp splits at maturity
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.mericarp - a carpel with one seedmericarp - a carpel with one seed; one of a pair split apart at maturity
carpel - a simple pistil or one element of a compound pistil
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This asymmetral pattern suggests that these disseminules are mericarps of the kind typical for Apiaceae, with three or five longitudinal veins occurring on the dorsal side of each mericarp but only a single vein running medially on the ventral side.
Each valve or mericarp with two auriform wings spreading from an obovate thickened central body; veins irregular in course and spacing, with large areoles.
24k), and the other a dispersed mericarp retaining a portion of the stylar projection (Fig.
An additional smaller vertical wing may arise over the locular region of each mericarp.
We have excluded from this treatment schizocarpic fruits with laterally extended mericarp wings, e.
In the case of a 4-winged fruit, typically each dispersed mericarp will possess two wings.
2006) is 7-winged, and asymmetrically schizocarpic, with three wings (a median and two marginal wings) on one mericarp, and four wings (two lateral and two marginal) on the other.
In Euphorbiaceae each mericarp separates from the adjacent mericarps as well as from the central column, when the fruit dries out, dehiscing abruptly along the dorsal suture, so that the seeds are thrown far away (ROTH, 1977).
common nut w 10 18 nettle Other wild plant taxa Apiaceae carrot mericarp w -- 1 family Bromus brome caryopsis c -- 1 Car ex sedge nut w -- 2 Persicaria/ knotweed/ nut w -- -- Polygonum knotgrass Silene campion seed w -- 1 Torilis hedge-- mericarp w -- 1 parsley Sum of macro 431 1804 botanical remains Other components charcoal c x x roots/rootlets w xx -- bark fragments w -- x buds w -- x twig fragments w -- x unidentifiable w xx -- plant fibres wood fragments w x xxx Bryophyta (stem w x xx and leaves) leaf fragments w -- -- Cenococcum w x x geophilum (sclerotia) Bone fragments unidentified bone -- -- fragments mammalia bone xx -- fragments Insect remains beetle remains -- x (e.
5 x 2 mm spherical mericarp that does not have any specific way of dispersal except for falling from the mother plant.