Seed morphology of Linaria species from eastern Spain: identification of species and taxonomic implications

Abstract

Seed morphology of 15 taxa of Linaria from eastern Spain has been studied using stereoscopic and scanning electron microscopy. Four different morphological types are described according t o features of the seed-coat surface. The type that includes winged seeded taxa is divided into three subtypes. Seed morphology of each type and subtype is described, compared, illustrated and discussed according to its taxonomic and biological implications. A key to identify the different species or groups of species is also supplied. 0 2001 The Linnean Society of London ADDITIONAL KEY WORDS: Antirrhineae -Scrophulariaceae -SEMseed-coat.

Seed morphology of some species of Convolvulaceae from Egypt (Identification of species and systematic significance)

“…Several studies focused on intrageneric seed coat variation (JUAN et al 2000;SEGARRA & MATEU 2001) or on variation among several closely related genera (KARAM 1997;KANAK SAHAI et al 1997;KOUL et al 2000; ABDEL KHALIK & VAN DER MAESEN 2002). For further information and references concerning seed forms and internal structures see CORNER (1976).…”

Foliar Micromorphological Evaluation of Cardiospermum halicacabum L. – An Important Medicinal Climber

“…Micromorphological characterization provides information for the investigation of taxonomic/systematic relationship between varieties of species, resolving problems in evolutionary relationships [12], and to understand the environmental parameters, which support the survival of species under particular climate etc. Developments in herbal medicine researches require good quality of raw material, standard methodology of drugs formulations and quality control parameters [13].…”

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

“…Micromorphology and ultrastructural data have contributed useful information for evolution and classification of seed plants and play an important role in the modern synthetic systems of angiosperms (DAHLGREN 1979(DAHLGREN , 1980. Several studies focused on intrageneric seed coat variation (JUAN et al 2000;SEGARRA & MATEU 2001) or on variation among several closely related genera (KARAM 1997;KANAK SAHAI et al 1997;KOUL et al 2000; Abdel KHALIK & VAN DER MAESEN 2002). For further information and references concerning seed forms and internal structures see CORNER (1976).…”