{"id":2161,"date":"2018-09-01T17:47:32","date_gmt":"2018-09-01T16:47:32","guid":{"rendered":"https:\/\/micologica-barakaldo.org\/?p=2161"},"modified":"2021-01-20T19:25:49","modified_gmt":"2021-01-20T18:25:49","slug":"russula-amarissima","status":"publish","type":"post","link":"https:\/\/micologica-barakaldo.org\/eu\/russula-amarissima\/","title":{"rendered":"Russula amarissima"},"content":{"rendered":"

Caracteres macrosc\u00f3picos<\/em>. P\u00edleo de hasta 160 mm de di\u00e1metro, primero convexo, despu\u00e9s extendido, margen incurvado, obtuso, regular, opaco, superficie pil\u00e9ica, adnata, lubrificada en tiempo h\u00famedo, seca y mate en tiempo seco, de color rojo bermell\u00f3n, rojo p\u00farpura, m\u00e1s claro hacia el margen, con manchas amarillo-ocr\u00e1ceo hacia el disco. L\u00e1minas muy apretadas al principio, m\u00e1s separadas con la edad, anchas de hasta 12mm, obtusas hacia el margen, sublibres, de color crema amarillento, manchadas de ocr\u00e1ceo, arista entera, t\u00edpicamente rojo bermell\u00f3n cerca del margen. Est\u00edpite de hasta 120 x 40 mm, cil\u00edndrico, adelgazado hacia la zona media y la base, lleno, compacto, rugoso, pruinoso en la parte alta, blanquecino, pero tintado de rosa-granate. Contexto espeso, quebradizo, blanquecino, amarilleando en la vejez, rosa vinoso bajo la pileipellis, olor afrutado, m\u00e1s resinoso al secarse, sabor primero resinoso que se transforma en un sabor amargo intenso. Reacciones macroqu\u00edmicas: SO4Fe, pardo ros\u00e1ceo. Resina de guayaco, r\u00e1pida e intensa.<\/p>\n

Caracteres microsc\u00f3picos<\/em>. Basidi\u00f3sporas de 7,0-9,0 x 6,5-8,0 \u00b5m \/ Q = 1,1-1,2, subglobulosas, verrugoso-espinosas, subreticuladas, espinas c\u00f3nicas hasta x1\u00b5m, placa suprapicular redondeada, amiloide. Esporada crema p\u00e1lido. Cistidios de hasta 150 x 15 \u00b5m, fusiformes o algo apendiculados, con contenido refringente, insensible a la sulfovainillina. Pileipellis formada por pelos obtusos o clavados, poco ramificados, de hasta x 4 \u00b5m., por hifas primordiales largas, cil\u00edndricas, septadas, con finas incrustaciones acido-resistentes con fucsina fenicada y posterior lavado con \u00e1cido sulf\u00farico, y por dermatocistidios abundantes, de hasta 70 x 8 \u00b5m, de cil\u00edndricos a claviformes, sin reacci\u00f3n a la sulfovainillina.<\/p>\n

Ecolog\u00eda<\/em>. \u00a0Sobre todo, en verano, en bosques de frondosas (Quercus<\/em> y Fagus<\/em>), en suelos \u00e1cidos.\u00a0 Distribuci\u00f3n<\/em>. muy raro.\u00a0<\/p>\n

Citar como: Mu\u00f1oz S\u00e1nchez, J.A. \u201cRussula amarissima\u00a0<\/em>Romagn. & E.-J. Gilbert\u201d. micol\u00f3gica-barakaldo.org [en l\u00ednea]. Fichas micol\u00f3gicas, n\u00ba 233, 01\/09\/2018 [consultado el (fecha)]. Disponible en https:\/\/micologica-barakaldo.org\/Russula-amarissima\/<\/a><\/p>\n

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