Embryology of Polycnemum arvense L. (lower core CARYOPHYLLALES)статья

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Дата последнего поиска статьи во внешних источниках: 23 марта 2017 г.

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[1] Veselova T. D., Dzhalilova K. K., Timonin A. C. Embryology of polycnemum arvense l. (lower core caryophyllales) // Wulfenia. — 2016. — Vol. 23. — P. 221–240. Polycnemum arvense has almost all embryological attributes of core-Caryophyllales. It shows in total equal affinity for Amaranthaceae and Chenopodiaceae, if the latter are considered separate families. It is somewhat closer to Amaranthaceae by its 1-celled female archesporium, but it shares Polycnemum/Paronychia pollen type with some Chenopodiaceae (and Caryophyllaceae), not with Amaranthaceae. Bisporangiate anthers of Polycnemum and Gomphrenoideae of Amaranthaceae which has long been considered of great taxonomic importance are almost certainly homoplasies, not synapomorphies. The outer integument structure of Polycnemum is equally different from those of Amaranthaceae and Chenopodiaceae. Polycnemum is similar to some Caryophyllaceae in the type of anther development, but not with Amaranthaceae and Chenopodiaceae. It sharply contrasts with all core-Caryophyllales by fibrous exothecium which is also inherent in some Frankeniaceae and Polygonaceae of noncore-Caryophyllales. Polycnemum is certainly close to families Amaranthaceae and Chenopodiaceae by the complex of its embryological characters. Nevertheless, it is too specific to be included in either of these families. Restoration of the MENGE’s family Polycnemaceae for Polycnemum alliance would be more appropriate.

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