The aquatic plants community associated with Azolla pinnata in the Geba River (Guinea-Bissau)
1999
Diniz, M.A. | Carrapiço, F.
Azolla pinnata R. Br. subsp. africana (Desv.) A. M .K. Saunders & K. Fowler is an aquatic floating fern that lives in the Geba River, located in the eastern region of the Republic of Guinea-Bissau (West Africa). This fern shows in this country a life cycle between August and March and has been tested, namely in the last few years, as green manure on rice culture. The aquatic macrophytes community associated with this fern is composed by eight species: Trapa natans L. var. bispinosa (Roxb.) Makino, Ludwigia leptocarpa (Nutt.) Hara var. leptocarpa, Pistia stratiotes L., Polygonum senegalense Meisn, Neptunia oleracea Lour., Cerathophyllum demersum L., Lemna aequinoctialis Welw. and Wolffia arrhiza (L.) Hoekel ex Wimmer. The dominant species associated with Azolla pinnata is Trapa natans
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