MORPHOLOGY AND SYSTEMATICS OF REPRESENTATIVES OF VOJNOVSKYALES

Abstract

The systematic position of a peculiar group of Angaran gymnosperms usually treated as "cordaites" is discussed. The systematics of these plants related to coniferophytes remains uncertain because of their extreme peculiarity. Possible interpretations of the generative structures of Vojnovskya Neub., Paravojnovskya Naug. et Doweld (=Gaussia nom. illeg.), and Scirostrobus Doweld et Naug. (=Pholidophyllum nom. illeg.), fundamentally similar genera, are considered. Significant resemblance between fructifications of Paravojnovskya and Scirostrobus and strobili of Vojnovskya is revealed. Such a similarity was reported earlier for representatives of Paravojnovskya from the Carboniferous and Permian of Angara.