Based on published records of earlier collections, a list of marine algae was compiled totaling 178 species: Chlorophyta-15 genera, 29 species, Phaeophyta-19 genera, 34 species, Rhodophyta-76 genera, 112 species, Cyanophyta-2 genera, 3 species. The history of marine algal collections in Libya is discussed briefly. Oceanographic Expedition (1908-1910 were identified and published by Lemoine (1915) and Petersen (1918). Muschler (1910) and Pampanini (1931) compiled lists of marine algae from Tripolitania and Cyrenaica.
Fragmentary algal collections dredged by a DanishPresently, extensive collections are being made along the coast in preparation for the publication of a complete marine algal flora of Libya. It was thought necessary to have a correct nomenclatural and taxonomic list of the species thus far reported by previous workers. It
Several aspects of the ecophysiology were compared in six eulittoral species of the mangrove red algal genus Caloglossa. The growth pattern in relation to different salt and light treatments, photosynthesis-irradiance curves, as well as the influence of salinity on the intracellular D-mannitol concentrations were studied. All Caloglossa isolates can be characterised as halotolerant due to a broad growth response under a range of salinities (5.3-70‰). The D-mannitol content of all isolates increased significantly with hypersaline treatments and decreased significantly with hyposaline treatments. These data indicate the strong involvement of this hexitol in the osmotic acclimation of Caloglossa. The growth-irradiance pattern and the photosynthesis-light response curves demonstrate an adaptation to shaded habitats for all species. All these physiological capabilities allow the successful colonisation of Caloglossa on various intertidal substrates.
Choristomatous cysts of the orbit may occur with non-keratinizing epithelial linings, and such cysts tend to differ clinically from the commoner dermoids and epidermoids. They may also occur in atypical sites such as the inferior orbit.
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