The combination of filicalean frond structure, marsileaceous sporophyte morphology, and salviniaceous/azollaceous sporangial characters displayed by Hydropteris again raises the […]
Source: wiktionary
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The combination of filicalean frond structure, marsileaceous sporophyte morphology, and salviniaceous/azollaceous sporangial characters displayed by Hydropteris again raises the […]
Source: wiktionary
A comparison with other azollaceous and salviniaceous genera, particularly Azolla, is provided, together with a discussion of some evolutionary trends within the family.
Source: wiktionary
Several extinct azollaceous spores have associated glochidia. The megaspore complexes […] The spores of living and extinct azollaceous ferns are the most elaborate among […]
Source: wiktionary