FLORAL MORPHOGENESIS OF CHORIPETALOUS AND SYMPETALOUS MEMBERS OF ERICACEAE s.l. (ERICALES)
https://doi.org/10.1234/XXXX-XXXX-2011-2-7-9
Abstract
Choripetaly of Rhododendron tomentosum is the result of secondary reduction. Our data sup-
port earlier observations of P. Leins [1] that a rudimentary corolla tube occurs during early stages of floral development. Choripetaly of Empetrum may be a plesiomorphic condition, because any vestiges of corolla tube were not detected throughout all stages of flower development. However, a complete loss of corolla tube cannot be excluded. The type of congenital petal fusion varies within a group of closely related taxa of Ericaceae: Phyllodoce caerulea has late sympetaly while Loise- leuria procumbens has early sympetaly. In contrast, in euasterids, the type of sympetaly appears to characterize taxa of higher rank.
References
1. Harmaja H. New names and nomenclatural combinations in Rhododendron (Ericaceae) // Ann. Bot. Fennici. 1990. Vol. 27. N 2. P. 203—204.
2. Leins P. Entwickьlngsgeschichtliche Studien an Ericales-Blьten // Bot. Jahrb. Syst. 1964. Bd. 83. S. 57—88.
3. Соколов Д.Д., Ремизова М.В., Тимонин А.К., Осколь- ский А.А. Срастания органов в цветках покрытосеменных растений: типология, таксономическое и филогенетическое значение // Вопросы общей ботаники: традиции и перспективы. Мат-лы междунар. науч. конф., посвящ. 200-летию Казанской ботанической школы (23—27 января 2006 г.). Казань, 2006. С. 99—101.
4. Leins P., Erbar C. Floral developmental studies: some old and new questions // Int. J. Plant Sci. 1997. Vol. 158. N 6. P. S3—S12.
5. Седова Е.А., Василевская Н.В. Поливариантность онтогенетических процессов Phyllodoce caerulea (L.) Bab. (Ericaceae Juss.) в горных тундрах Субарктики // Вестн. Моск. ун-та. Сер. Биология. 2003. № 2. С. 44—49.
6. Kron K.A., Judd W.S., Stevens P.F., Crayn D.M., An- derberg A.A., Gadek P.A., Quinn C.J., Luteyn J.L. Phylogenetic classification of Ericaceae: molecular and morphological evidence // Bot. Rev. 2002. Vol. 68. N 3. P. 335—423.
Review
For citations:
Vislobokov N.A. FLORAL MORPHOGENESIS OF CHORIPETALOUS AND SYMPETALOUS MEMBERS OF ERICACEAE s.l. (ERICALES). Vestnik Moskovskogo universiteta. Seriya 16. Biologiya. 2011;(2):7-9. (In Russ.) https://doi.org/10.1234/XXXX-XXXX-2011-2-7-9
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