‘Flower’ of Magnolia Grandiflora is not Flower and What about ‘Basal Angiosperms’
Journal of Plant Sciences
Volume 2, Issue 6, December 2014, Pages: 282-292
Received: Nov. 16, 2014; Accepted: Nov. 30, 2014; Published: Dec. 15, 2014
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Authors
Valentin Krassilov, Institute of Evolution, University of Haifa, Mount Carmel, Haifa 31905, Israel
Sophia Barinova, Institute of Evolution, University of Haifa, Mount Carmel, Haifa 31905, Israel
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Abstract
Gynoecial morphology of Magnolia grandiflora is revised, with ‘follicles’ reinterpreted as condensed branching systems forming a flower-like syncupulate infructescence (‘secondary flower). Flowers appear on the main axis in the axils or on basal ramifications of gynoecial paracladia, those developing into fruits being incased by glandular calyptras, commonly perceived as seeds. Fruit wall is formed of zygomorphic corolla tube with persistent calyx and petaloid tepals, containing a solitary inverted seed in the fertile locule, with analogies in diverse ‘eudicots’. These findings imply a reconsideration of ‘basal angiosperms’.
Keywords
Plant Morphology, Plant Evolution, Flowering Plants, Angiosperm Phylogeny, Angiosperm Paleobotany
To cite this article
Valentin Krassilov, Sophia Barinova, ‘Flower’ of Magnolia Grandiflora is not Flower and What about ‘Basal Angiosperms’, Journal of Plant Sciences. Vol. 2, No. 6, 2014, pp. 282-292. doi: 10.11648/j.jps.20140206.14
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