The fatty acids of six wild edible mushroom species (Boletus reticulatus, Flammulina velutipes var. velutipes, Lactarius salmonicolor, Pleurotus ostreatus, Polyporus squamosus, and Russula anthracina) collected from different regions from Anatolia were determined. The fatty acids were identified and quantified by gas chromatography and studied using fruit bodies. Fatty acid composition varied among species. The dominant fatty acid in fruit bodies of all mushrooms was cis-linoleic acid (18 : 2). Percentage of cis-linoleic acid in species varied from 22.39% to 65.29%. The other major fatty acids were, respectively, cis-oleic, palmitic, and stearic acids. Fatty acids analysis of the mushrooms showed that the unsaturated fatty acids were at higher concentrations than saturated fatty acids.

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doi:10.3906/bot-1309-2

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Fomitopsis pincola, which is used as a medicinal fungus in Asia, is widespread throughout the temperate Northern Hemisphere. The fungus's chitin structure was isolated and characterized in this study. It was found that 30.11 % of the dry weight of the fungus consisted of chitin, a very high portion. The chitosan yield from the chitin was 71.75 %. It was calculated that chitin acetylation was 72.5 % and that deacetylation of chitosan was 73.1 %. The maximum temperature of degradation (DTGmax) recorded for the chitin was 341°C and was 265°C for chitosan. The crystalline index (CrI) value of the chitin was 52 %, while it was 41 % for the chitosan. Examination by SEM revealed that the surface morphologies of the chitin and chitosan were formed of nanofibre structures. The FTIR examination identified it as the α form of chitin. As F. pinicola is widespread, abundant and has a high chitin and chitosan content, it may be used as an alternative chitin and chitosan source.

Th is checklist contains 252 species of myxomycetes recognized as occurring in Turkey. Th e names are arranged alphabetically. For each species, references are cited. An index of synonyms, based on literature records from Turkey, is appended.

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