mericarp


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mericarp

one seeded portion of a dry fruit or SCHIZOCARP split off from a SYNCARPOUS ovary at maturity.
References in periodicals archive ?
The resistance of the mericarp to digestion, the ability of the seed to germinate, and the establishment of the seedling are all subject to natural selection, even when dispersal is accidental.
This literature review identifies large gaps in our knowledge of Salvia mericarp dispersal.
In addition, experimental studies of mericarp mucilage production (myxocarpy), mericarp/calyx buoyancy in air and water, and mericarp/calyx feeding trials with animals, including granivorous ants and birds, will provide much-needed data that can inform and explain field observations.
The presence of cells with lignified walls on these bundles at ripeness, associated with the spongy tissue--mechanically more fragile at this region--and the invagination--occurred in early stages among lateral bundles--caused the separation of the mericarps, remaining the carpophore in the fruit axial region (Figure 4C).
altissima, lateral bundles occur separately probably due to the late process of the schizocarpic fruit, which is separated in winged mericarps. In most of studied species, a net of secondary lateral bundles is found (Paullinia alata, P.
ulmacea, these authors described that any line of dehiscence is formed by oxalate crystals and fruit are easily separated by hands into winged mericarps seeming to be exclusively septifragal capsules and the schizocarpic fruit description for this species is incorrect.
Such mericarps have no obvious adaptation for dispersal (Fig.
Among those species two produce wind-dispersed winged samaras and the other four have the wings greatly reduced and the mericarps probably dispersed by water.
Last segments of the bracts ovate, lanceolate to linear-lanceolate; rays of the flowering umbels [+ or -] straight to rather arched-convergent; secondary ridges of the mericarp with thick spines dilated and joined at the base .....................
Segments of the bracts linear-lanceolate to linear, slightly mucronate; secondary ridges of the mericarp with thick, antrorse or patent spines ................................................................................
The wings develop from furrows between ribs, with a pair of marginal wings on each mericarp (Liu et al., 2006).
Each mericarp is obovate in outline with cuneate-rounded base and rounded to subcordate apex and shows an intramarginal vein.