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THE FLORAL AND EXTRA‐FLORAL NECTARIES OF PASSIFLORA. II. THE EXTRA‐FLORAL NECTARY
American Journal of Botany, 1982Extra‐floral nectaries of nine species of Passiflora were studied with light and electron microscopy prior to and during secretion. There is no evidence of ER or Golgi participation in the secretion of nectar. The vascular tissue supplying the nectary is characterized by companion and phloem parenchyma cells which are usually larger than the sieve ...
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The floral nectaries in theIrvingiaceae
Plant Systematics and Evolution, 1992TheIrvingiaceae generally possess large intrastaminal receptacular disc nectaries of the mesenchymatic histo-type, which receive numerous small phloematic bundles directly from the central stele. The non-glandular epidermis bears some 10 to 15 strictly localized stomata that are deeply sunken in the parenchyma.
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Remarkable nectaries: structure, ecology, organophyletic perspectives I. Substitutive nectaries
Flora, 1997Summary In the present, first part of a series of studies on floral and extrafloral nectaries (N, Ns) that deserve interest from the structural, taxonomic, evolutionary and ecological points of view, the nuptial Ns found in members of five families are examined. They are considered to be substitutive, having evolved secondarily in subgroups that have
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2005
Basins, Maria, and Highlands The Nectaris region (Figure 8.1) has extensive highlands, intensively cratered terrain whose large-scale topography has been established in very ancient times (in the Pre-Nectarian Period).
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Basins, Maria, and Highlands The Nectaris region (Figure 8.1) has extensive highlands, intensively cratered terrain whose large-scale topography has been established in very ancient times (in the Pre-Nectarian Period).
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Nectaries in ferns: their taxonomic distribution, structure, function, and sugar composition
American Journal of Botany, 2022Klaus Mehltreter +2 more
exaly
Nectary structure and ultrastructure
2007It is easy to define nectaries from a functional point of view: they are plantsecreting structures that produce nectar, but it is difficult to provide a general definition. From the anatomical point of view nectaries vary widely in ontogeny, morphology, and structure (Fahn, 1979a, 1988; Durkee, 1983; Smets et al., 2000), both between species and within
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