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Comparative structure of ovules and seeds inRafflesiaceae
The genera of theRafflesiaceae show a marked diversity in the structure of their ovules and seeds. Evolutionary trends are recognizable in ovule orientation and number of integuments. A change fromExpand
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SUMMARY The embryology and seed structure of Mayaca fluviatilis was studied. The embryological and structural seed characters clearly support the assumption of a separate familial status of theExpand
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The Seed: Structure
The seed functions as the reproductive unit of the Spermatophyta (seed plants), and links the successive generations. Other important seed functions concern dispersal and survival under cold, dry orExpand
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Development of ovule and seed in Rapateaceae
VENTURELLI, M. & BOUMAN, F., 1988. Development of ovule and seed in Rapateaceae. The structure of the ovules and/or seeds of twelve species of Rapateaceae were studied, some additional embryologicalExpand
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Structure and Macromolecular Composition of the Seed Coat of the Musaceae
Abstract Mature seed coats of representatives of all three genera of Musaceae were analysed for macromolecular composition with various mass spectrometric techniques and compared with scanningExpand
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Integument initiation and testa development in some Cruciferae
This study has shown for the first time that the middle layer (or layers) of the outer integument is (are) of subdermal derivation in at least some taxa of the Cruciferae. The outer integument isExpand
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Seed Structure in Cannaceae: Taxonomic and Ecological Implications
The ovules and seeds of Canna show some striking differences to those in other zingiberalean families. The pachychalazal development of the ovule results in a seed of which only a small part of theExpand
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An exploratory study on seed morphology of Miconia Ruiz & Pavón (Melastomataceae), with taxonomic and ecological implications
SUMMARY The results of an exploratory study on seed morphology of Miconia Ruiz & Pavon (Melastomataceae) are presented. Seeds of 75 species, mainly from north-western South America, includingExpand
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Evolution and Phylogenetic Importance of Endocarp and Seed Characters in Viburnum (Adoxaceae)
Recent phylogenetic analyses based on molecular markers have resulted in a solid phylogeny of Viburnum with 12 well‐defined clades. This has allowed us to focus on character evolution, endocarp andExpand
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Development of the ovule and seed in Costus cuspidatus (N.E.Br.) Maas (Zingiberaceae), with special reference to the formation of the operculum
The ovule primordium of Costus is trizonate and both its integuments are dermally initiated. With other evidence, this strongly suggests that most, if not all, monocotyledons have dermally initiatedExpand
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