B. Papp szerk.: Studia Botanica Hungarica 36. 2005 (Budapest, 2005)

Siller, Irén, Vasas, Gizella , Pál-Fám, Ferenc , Bratek, Zoltán , Zagyva, Imre; Fodor, Lívia: Hungarian distribution of the legally protected macrofungi species

Quercetum roboris). Private collection of F. Pál-Fám and L. Benedek: Börzsöny: Királyrét (Luzulo-Fagetum), Börzsöny: Királyrét (Carici pilosae-Carpinetum). SILLER (2004): Bükk: Őserdő (Aconito-Fagetum). Private collection of B. Dima: Budai-hegység: Nagykovácsi. Polyporus umbellatus (Pers.) Fr. (Polyporales, Polyporaceae) (Syn.: Dendropolyporus umbellatus (Pers.) Jülich, Grifola umbel lata (Pers.) Pilât) Fruit-body: a group of fruit-bodies is formed. A specimen might be as high as 20-50 cm and might reach several kilograms in weight. After several branching of a common basis several hundreds (thousands) small cap is developing. The basis usually attached to a stump and continued in a blackish brown Sclerotium in the soil. Cap: each little cap is 1-4 cm wide, yellowish brown, greyish brown, round. Hymenium: decurrent, built up of white tubes. Pores at first round, later multiangular (polygonal), tiny. Flesh: white, fragile, with a pleasant flour-scent. Life-strategy: causing white rot, parasitic and saprobiont. Occurrences in Hungary, habitats: July-October, on stumps, roots of deciduous trees (most frequently Quercus, then Acer, Carpinus, Fagus, Populus), on strongly decayed wood. Seldom on coniferous trees (Picea, Pinus). Distribution, frequency: Scattered in the Holarctic, temperate regions, but seldom found in deciduous forests (in regions of the oak-beech stands). Known from Asia, North America and Europe. In Europe it seems to be suboceanic, Central European. Very rare in Southern Europe (KRIEGLSTEINER 2000). Infrequent in all places recorded. It avoids the coniferous plantations and the managed, over-exploited forests. Hungarian records are underrepresented, the species is by all means very rare! Hungarian red list category: 3. Justification: Highly endangered species because of the depleting seminatural or old-growth forests, elimination of dead wood, and also because of its excellent qualities as an edible macrofungus. Known Hungarian records: ALBERT (2002a): Mátra: Parádsasvár (Luzulo-Fagetum). Private collection of F. Pál-Fám: Dombóvár. BP: Budai-hegység: Nagykovácsi, Budai-hegység: Zsíros-hegy, Visegrádi-hegység: Lajosforrás, Soproni-hegység: Ágfalva (ad truncum), Zala. megye: Dobron-hegy (in fageto, ad