Morphology, taxonomy, and nomenclature of three species of Hawaiian green algae (Chlorophyta) are examined. Udotea? abbreviata Gilbert is shown to be incorrectly placed in that genus and more appropriately allied to Pseudochlorodesmis. The complex nomenclatural relationships of Cladophora tildeniae Brand in Tilden, Cladophora tildeniae Brand, and Cladophora hawaiiana Tilden are described, with ...

Culturing, isolation, purification, and identification of cyanobacteria collected from wheat field soil, in five stations around the industrial areas in Yazd province (Iran) were conducted in this study. Identification of taxa was based on morphology and molecular methods. Cluster analysis and principal component analyses performed using SPSS software and rate of resemblance among the taxa were...

The genus Calendula belongs to tribe Calenduleae, (Asteraceae family). Itmorphologically studied for the ongoing project of the flora of Iran. Based on the herbarium studies and field observation, this genus has been revised. The study was based on fresh material from field as well as herbarium specimens. All specimens existed in the herbarium of Research Institute of...

The lichen specimens belonging to the order Lecanorales were collected from calcareous rocks in various areas of Mashhad. (Khorasan province). Specimens were taken back to the laboratory and identified. The identification of the species is based on morphology, anatomy and chemistry. They compose of  8  taxa  belonging  to 7 genera, namely, Lecanora conferta, L. muralis, Rhizocarpon umbilicatum,...

The pteridophyte account of Flora Iranica (ed. K.H. Rechinger) is still not published. The Caspian forests provide suitable habitats for the growth of many ferns and fern allies in Iran. In semi-arid and mountainous areas of Iran, mesophilous plants are restricted to rock crevices, waterfall proximity, stream banks and lake shores. Based on field collections and study of herbarium specimens in ...

The genus Calendula belongs to tribe Calenduleae, (Asteraceae family). Itmorphologically studied for the ongoing project of the flora of Iran. Based on the herbarium studies and field observation, this genus has been revised. The study was based on fresh material from field as well as herbarium specimens. All specimens existed in the herbarium of Research Institute of...

Results of four field surveys, conducted from June 2017 to 2018 found that in the Phu Yen coastal water, a total 103 seaweed species have been recorded, increasing number province 133 species, with 81 newly recorded for geographic area. Among 4 belong Cyanobacteria, 38 Rhdophytes, 24 Phaeophytes, and 37 Chlorophytes. The at surveyed sites V1 V9 varies 3 species/site (V3) 83 (V7) on average 27 s...

To date, 18 species of the algal genus Lobophora (Dictyotales, Phaeophyceae) have been reported for Greater Caribbean Sea. Nevertheless, only 2 recorded marine flora Cuba, variegata and canariensis (as Aglaozonia ). update knowledge about this in an exhaustive morphological study was performed using macroalgae collected from Western Cuba: Ecological Reserve Los Pretiles (Pinar del Río Province;...

introduction one of the important events that usually occur in seas and large water bodies’ concurrent with the change of season is the growth and species increase of phytoplankton. in the natural environment, this event does not result in imbalances of water ecosystems. however, pollution caused by human activities results in excessive growth and reproduction of phytoplankton and other opportu...

pollutions. Recently, both Persian Gulf and Gulf of Oman are experiencing several types of pollution including oil spills and heavy metal pollutions as well as Harmful Algal Bloom (HAB) caused by biological and environmental changes. Theiroccurrence of the red tide or harmful algal bloom during fall and winter 2008-2009 caused numerous unknown factors in the Strait of Hormuz, Persian Gulf and G...