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- Title
Seed coat morphology of Aizoaceae–Sesuvioideae, Gisekiaceae and Molluginaceae and its systematic significance.
- Authors
Hassan, Nasr M. S.; Meve, Ulrich; Liede-Schumann, Sigrid
- Abstract
Macro- and micromorphological characters of the seeds of 32 species belonging to Aizoaceae (26 species), Gisekiaceae (one species) and Molluginaceae (five species) were analysed for their taxonomic value. Seed morphology is found to be of considerable taxonomic value within the taxa investigated, although additional criteria are usually necessary for distinguishing the species. However, a subgroup ofTrianthema, consisting ofT. cussackiana,T. megasperma,T. pilosa,T. rhynchocalyptraandT. oxycalyptravar.oxycalyptra(Aizoaceae) shares the synapomorphy of seeds with scattered idioblast cells (papillae). There is little infrageneric variation withinSesuviumandZaleyain contrast toTrianthema, whose seeds are considerably polymorphic. The fairly different seed structures found in Aizoaceaes.s. and Molluginaceae support their treatment as two distinct families. However, the position ofLineum(Molluginaceae) remains uncertain. Moreover, seed characters support the independence ofGisekia(Gisekiaceae) in a family of its own. © 2005 The Linnean Society of London,Botanical Journal of the Linnean Society, 2005,148, 189–206.
- Subjects
SEEDS; AIZOACEAE; MOLLUGINACEAE; PLANT classification; PLANT morphology
- Publication
Botanical Journal of the Linnean Society, 2005, Vol 148, Issue 2, p189
- ISSN
0024-4074
- Publication type
Article
- DOI
10.1111/j.1095-8339.2005.00407.x