{"id":2316,"date":"2018-10-13T18:53:51","date_gmt":"2018-10-13T17:53:51","guid":{"rendered":"https:\/\/micologica-barakaldo.org\/?p=2316"},"modified":"2021-04-02T13:05:59","modified_gmt":"2021-04-02T12:05:59","slug":"russula-vitellina","status":"publish","type":"post","link":"https:\/\/micologica-barakaldo.org\/eu\/russula-vitellina\/","title":{"rendered":"Russula vitellina"},"content":{"rendered":"

Caracteres macrosc\u00f3picos<\/em>. P\u00edleo de hasta 40 mm de di\u00e1metro, primero globuloso, despu\u00e9s convexo, finalmente extendido e incluso algo deprimido en el disco, margen delgado, incurvado, suavemente acanalado en la madurez, superficie pil\u00e9ica, completamente separable, viscida, lisa y brillante, de color amarillo citrino, amarillo cromo en el centro y en general m\u00e1s p\u00e1lido en el margen o con tonos cremas en la madurez. L\u00e1minas apretadas al principio, m\u00e1s separadas con la edad, anchas (hasta 10mm), obtusas en el margen, redondeadas o libres en la inserci\u00f3n con el est\u00edpite, intervenadas, de color primero ocre amarillento, naranja ocr\u00e1ceo en la madurez, arista entera, primero p\u00e1lida y despu\u00e9s concolor. Est\u00edpite de hasta 60 x 15 mm, esbelto, claviforme, fr\u00e1gil, pruinoso, rugoso longitudinalmente, de color blanco, se mancha de ocr\u00e1ceo a la manipulaci\u00f3n. Contexto poco espeso, blanco, olor poco apreciable, que en la madurez es agrio, a mostaza seg\u00fan Romagnesi, sabor dulce. Reacciones macroqu\u00edmicas: SO4Fe, rosa anaranjado intensidad media. Resina de Guayaco lenta, pero m\u00e1s o menos intensa.<\/p>\n

Caracteres microsc\u00f3picos<\/em>. Basidi\u00f3sporas de 7,5-8,5 x 6,5-7,5 \u00b5m \/ Q = 1,2-1,3. elipsoidales, verrugo-punteadas, con verrugas obtusas o c\u00f3nicas, poco o moderadamente densas, de hasta x 1,2 \u00b5m, en general aisladas. Esporada amarillo intenso. Cistidios de hasta 70 x 10 \u00b5m, abundantes, fusiformes, con un peque\u00f1o ap\u00e9ndice en la parte superior, reacci\u00f3n poco en\u00e9rgica a la sulfovainillina. Pileipellis formada por: c) pelos claviformes, en general poco ramificados, con septos m\u00e1s o menos cortos, de hasta x6 \u00b5m. d) hifas primordiales, cil\u00edndricas, cortas, obtusas, de hasta 8 \u00b5m, con gruesas incrustaciones acido resistentes, despu\u00e9s del tratamiento en fucsina.<\/p>\n

Ecolog\u00eda.<\/em> En verano y oto\u00f1o en bosques de frondosas (Quercus<\/em>, \u00a0Fagus, Castanea<\/em>) y de con\u00edferas en suelos \u00e1cidos.\u00a0 Distribuci\u00f3n<\/em>. Poco frecuente.\u00a0<\/p>\n

Citar como: Mu\u00f1oz S\u00e1nchez, J.A. \u201cRussula vitellina\u00a0<\/em>Gray\u201d. micol\u00f3gica-barakaldo.org [en l\u00ednea]. Fichas micol\u00f3gicas, n\u00ba 257, 13\/10\/2018 [consultado el (fecha)]. Disponible en https:\/\/micologica-barakaldo.org\/Russula-vitellina\/<\/a><\/p>\n

\u00a0<\/p>\n<\/div>

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