Azolla Lam.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 25

publication ID

https://doi.org/10.5281/zenodo.302862

persistent identifier

https://treatment.plazi.org/id/1213417E-FFDA-FFD8-CD5C-FC8840D7CA40

treatment provided by

Plazi

scientific name

Azolla Lam.
status

 

1. Azolla Lam. 2

Small aquatic plants. Leaves always harbouring the blue-green alga Anabaena , the upper lobe herbaceous, the lower larger and hyaline. Microsporangia producing several groups of microspores (massulae), often covered with specialized hairs (giochidia); megasporangia producing a single megaspore with 3 floats, which germinates at the water surface to produce a small prothallus.

The only genus.

Upper lobe of leaf obtuse, with a broad membranous margin 1. flliculoides

Upper lobe of leaf subacute, with a very narrow membranous margin 2. caroliniana

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