Actinella gessneri Hustedt (Eunotiaceae, Bacillariophyceae), a rare and endemic species in Amazonian blackwater, Brazil
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Published:2024-02-07
Issue:2
Volume:636
Page:163-174
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ISSN:1179-3163
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Container-title:Phytotaxa
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language:
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Short-container-title:Phytotaxa
Author:
COÊLHO JOÃO MARCOS SOUZAORCID,
LEHMKUHL ELTON A.ORCID,
ARAÚJO CAMILA CARIME AZEVEDO DEORCID,
LUDWIG THELMA A. V.ORCID,
SILVA-LEHMKUHL ANGELA M. DAORCID
Abstract
Actinella gessneri Hustedt is a rare and poorly known Amazonian diatom species. Low records and restricted distribution to acid waters suggest that this species may be threatened with extinction. We record a new occurrence of Actinella gessneri Hustedt in Amazonian blackwaters, providing detailed images on LM and SEM, and approaching ecological aspects concerning habitat, quality water and hydrological periods.