New epiphytic araphid diatoms in the genus Ulnaria (Bacillariophyta), collected from Lake Titicaca, Bolivia
Pinnularia aljustrelica sp. nov. (Bacillariophyceae), a new diatom species found in acidic waters in the Aljustrel mining area (Portugal) and further observations on the taxonomy and ecology of P. acidophila Hofmann et Krammer and P. acoricola Hustedt
Epilithic diatoms of springs and spring–fed streams in Majorca Island (Spain) with the description of a new diatom species Cymbopleura margalefii sp. nov.
EOLIMNA BECARESII SP. NOV., A NEW DIATOM TAXON FROM A SPANISH SHALLOW LAKE
Diatoms (Bacillariophyceae) from the Bolivian Altiplano: three new araphid species from the Desaguadero River draining Lake Titicaca
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