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Centaurea thracica (Janka) Hayek is a plant common in southern Bulgaria. The inflorescences were collected during June and September 2021, while their seeds were obtained in September 2021. The chemical and lipid composition of the inflorescences during the vegetation process of the plant were established. A significant decrease in total proteins (from 8.7 to 7.4%), glyceride oils (2.0–1.7%), and ash (4.5–4.2%) content was observed, while the amount of carbohydrates (72.3–77.2%) and fibers (28.7–35.8%) increased. During the vegetation of the plant, the content of oleic and linoleic acids increased up to 2–3 times, while the level of palmitic acid decreased. The lipids from the seeds were rich in oleic (53.0%) and palmitic (36.2%) acids. The tocopherol content in the oils of the inflorescences during vegetation increased from 58 to 110 mg/kg, and the content in the oil from the seeds was 260 mg/kg. The phospholipid content decreased during vegetation, and differences were observed in the composition between the inflorescences and the seeds. The high content of oleic acid, linoleic acid, tocopherols, and phospholipids determine the nutritional and biological value of the oils isolated from Centaurea thracica, and contribute to their potential use in various directions. [ABSTRACT FROM AUTHOR]

This article attempts to summarize the available data on wild edible macromycetes in the regions Strandzha and the Black Sea coast in connection with the clarification of ethnomycology. The total number of registered species of edible mushrooms for both areas is 105. The species Boletus caucasicus Singer ex Alessio; Boletus luridiformis Rostk. var. luridiformis and Laccaria bicolor (Maire) P.D. were noted only for the region of the Black Sea coast. The species composition, ecological-trophic structure and seasonality of edible mushrooms are briefly discussed. A list of 14 macroscopic edible fungi with conservation significance for the mycota of the two territories, assessed with the latest IUCN criteria, is given. Critically Endangered (CR) according to the Red List of fungi in Bulgaria and the Red Data Book of the Republic of Bulgaria was Boletus caucasicus Singer ex Alessio. [ABSTRACT FROM AUTHOR]