the algal flora of five stations from paddy-fields of golestan province was investigated between october 2006 and september 2007. eight filamentous heterocystous nostocacean are recorded here for the first time from paddy fields of iran: cylindrospermum licheniforme, cylindrospermum stangnale, cylindrospermopsis raciborskii, calothrix ghosei, gloeotrichia longiarticulata, aulosira implexa var. ...

—A new species of the red algal genus Woelkerlingia, W. sterreri C. W. Schneid. & M. J. Wynne, is described from a single collection made in Bermuda. The collection contained male and female (dioecious) individuals as well as tetrasporangia and polysporangia on sporophytes. The Bermudian species is compared with and distinguished from W. minuta of the Mediterreanean Sea, up to now the only othe...

During the course of studies of the bacterial and algal flora of creek waters we were puzzled by the absence of any representatives of the genus Thiothrix from samples in which there was a regular and abundant growth of Beggiatoa species. Associated with Beggiatoa in many of these samples was the colorless sheathed organism Sphaerotilus natans. In view of the very gross similarity of Sphaerotil...

This report describes the discovery of the rare euglenoid taxon Trachelomonas bituricensis var. lotharingia in a small mesotrophic pond in the Czech Republic. Only limited data are available on the distribution of this taxon as same as for typical variety of Trachelomonas bituricensis, even though this taxon is morphologically very well defined. I provide a brief discussion of the taxonomic val...

Between January 2001 and May 2003, 167 stream segments on the islands of Kaua‘i, O‘ahu, Maui, and Hawai‘i were sampled for stream macroalgae and measured for a series of physical and chemical conditions. Conditions ranged more widely than previously reported, which is likely due to the greater diversity of habitats accessed and the year-round sampling representation in this study. Water tempera...

A variety of Algae occurs in the water and soil rice field ecosystems. These algae include green algae, desmids, diatoms blue with respect to their requirements like light, water, high temperature nutrient availability. Paddy ecosystem provides an environment favorable for growth BGA (Blue Green Algae). Algal flora is idea utilizing it as biofertilizer alternative or supplementary source nitrog...