New genera and new species of Catenulaceae (Bacillariophyta) from Coral Reef habitat of two Indonesia islands-Bawean and Sulawesi-A morphological approach.

Indonesia is listed as a region with high marine biodiversity, especially when considering the three large tropical ecosystems: seagrass beds, mangroves and coral reefs. It is likely that the biodiversity of diatoms in this area is also high. Samples for this research were taken from the remote area of Bawean Island and Tomini Gulf in Central Sulawesi.

Morphology and phylogeny of sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir.

Post-mining reservoirs are distinguished by characteristic environmental conditions where specific diatom communities can be observed. Reservoirs created as a part of the reclamation plan after human mining activities are marked by unique chemical and physical water parameters. In the course of research on the diatoms from Bogdałów reservoir, we examined the taxonomic and morphological diversity of Nitzschia taxa from the section Lanceolatae occurring in a post-mining lignite reservoir.

Description of five new D.G.Mann (Bacillariophyta, Diadesmidaceae) species from Indonesia with comments on the morphological boundaries of the genus.

During a survey of the Indonesian diatoms, five D.G.Mann taxa that could not be identified, based on the available literature were discovered.

Marine and brackish D.G.Mann (Bacillariophyta) species from the Java Sea and South China Sea coasts with the description of three new species.

In this study, samples were collected from the Java Sea coasts, from the South China Sea in Hainan Island coasts and Quảng Yên region and Rú Chá mangrove near Hue in Central Vietnam. In studied samples a total of eight species have been observed. Three of the taxa studied are described herein as species new to science - , and Under light microscopy (LM) and are similar with rhombic-lanceolate to rhombic/ elliptic-lanceolate to elliptic valve shapes and narrowly rounded apices.

Description of four new terrestrial diatom species from and genera from South Africa.

The knowledge about terrestrial diatom assemblages in southern Africa is rather limited, despite a long history of diatom research in this area. Terrestrial habitats are places of characteristic diatom floras, dominated by species resistant to desiccation which are able to thrive in conditions of limited water availability. The presented work expands the knowledge about these unique habitats.

Three new D.G.Mann (Bacillariophyta) species from Rapa Nui (Easter Island) found in terrestrial diatom assemblages dominated by widely distributed taxa.

Background: Rapa Nui (Easter Island = Isla de Pasqua) is of volcanic origin, best known for about 900 man-made stone statues known as . It is one of the most isolated inhabited islands on Earth and studies on the diatoms of Rapa Nui are very few.

Methods: Light (LM) and electron microscopic (SEM) observations of a single sample collected from Rapa Nui are presented.