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Seed morphology of Cuscuta L. (Convolvulaceae) in Egypt and its systematic significance

✍ Scribed by K. N. Abdel Khalik

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
303 KB
Volume
117
Category
Article
ISSN
0014-8962

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✦ Synopsis

Abstract

The seed morphology of eight taxa of Cuscuta from Egypt has been studied using light and scanning electron microscopy, to determine the significance of seed coat features as taxonomic characters. Macro‐ and micromorphological characters, including seed shape, colour, size, epidermal cell shape, anticlinal boundaries, outer periclinal cell wall and relief of outer cell walls are presented. Three types of anticlinal cell wall boundaries are recognized and two different shapes of outer periclinal cell wall are described. The secondary sculpture of the cell wall varies from striate to micro‐reticulate, and smooth to fine folds. A key for the identification of the investigated taxa based on seed characters is provided. (Β© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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## Abstract A pollen morphological investigation of eleven species and one subspecies of the genus __Galium__ L. from Egypt were undertaken by using light microscope (LM) and scanning electron microscope (SEM). Pollen shape, size, exine ornamentation, number of apertures present powerful characters