The embryology and relationships ofPenaeaceae (Myrtales) |
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| Authors: | Hiroshi Tobe Peter H Raven |
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| Institution: | (1) Department of Biology, Faculty of Science, Chiba University, 1-33 Yayoi-cho, 260 Chiba, Japan;(2) Missouri Botanical Garden, P.O. Box 299, 63166 St. Louis, MO, USA |
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| Abstract: | Two species ofPenaeaceae (Penaea mucronata andSaltera sarcocolla), a unique South African family ofMyrtales, were investigated embryologically.Penaeaceae clearly agrees with otherMyrtales in its basic embryological characteristics, and further is characterized by its highly specialized features: ephemeral endothecium, 16-nucleatePenaea-type embryo sac, and unique ovular form. A wider range of affinities of families includingPenaeaceae, Oliniaceae, Rhynchocalycaceae, Alzateaceae, andCrypteroniaceae sensu stricto, as well as a possible common divergence from an ancestral line leading toLythraceae and/orMelastomataceae, are discussed on embryological and other grounds. |
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| Keywords: | Angiosperms Myrtales Penaeaceae Penaea Saltera Embryology reproductive anatomy systematics |
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