This study presents 21 species of Chlamydomonas, four species of Carteria, two species of each of Nephroselmis, Pyramidomonas and Scherffelia, and Collodictyon triciliatum, Polytoma minus, Tetrachloridium ? allorgei and Tetraselmis cordiformis. These species have been reported from some ponds of Mathbaria of Pirojpur and Bakerganj of Barisal districts in Bangladesh.

This study presents two species of Rhodomonas, four species of Chroomonas, six species of Cryptomonas and Cryptochrysis minor, Cyanomonas coeruleus, Chrysodidymus synuroideus and Mallomonas akrokomos. These species have been reported from some ponds of Mathbaria in Pirojpur and Bakerganj of Barisal district in Bangladesh.

Arctotis arctotoides is a perennial herb used medicinally for the treatment of various ailments in the Eastern Cape, South Africa. Different extracts from the shoots of this herb showed antimicrobial activity against some bacterial species. Bioassay guided fractionation of the extracts has led to the isolation of three compounds, glycerol-1-docosanoate, zaluzanin C and perydiscolic acid. The structures were elucidated on the basis of their one-and two-dimensional NMR spectral analysis and by a comparative literature study. The evaluation of antimicrobial activity of the compounds revealed moderate activity against four Gram-positive and two Gram-negative bacteria.

This study presents 20 taxa of the genus Euglena and one species of the rare euglenoid genus Euglenocapsa. All these taxa are reported for the first time from some pond ecosystems of Mathbaria in Pirojpur and Bakerganj of Barisal districts of Bangladesh. Keywords: Phytoplankton, New records, Bangladesh, Euglena, Euglenocapsa, PondsDOI: 10.3329/bjpt.v15i1.910Bangladesh J. Plant Taxon. 15(1): 39-46, 2008 (June)

not available Bangladesh J. Plant Taxon. 27(1): 191-194, 2020 (June)