Abstract
The presence of secondary xylem in the viviparous bulbils of Blechnum viviparum is reported. This is the first report of secondary growth in such structures of the ferns.References
White, R.A. 1960. Vessels in root of Marsilea. Science, 133: 3458.
Comments
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c) 1979 Revista de Biología Tropical
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