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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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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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The excretion of carbohydrates (nectaries)
1958The loss of sugars by plant cells and tissues (Wachter 1905) is a special aspect of the general phenomenon of loss of substances that was discussed in the second volume of this Encyclopedia1. It was stated there that this process is important because of its being an integrating part of all kinds of transport processes.
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