{"id":3973,"date":"2020-08-24T19:53:05","date_gmt":"2020-08-24T18:53:05","guid":{"rendered":"https:\/\/micologica-barakaldo.org\/?p=3973"},"modified":"2020-12-18T22:54:39","modified_gmt":"2020-12-18T21:54:39","slug":"russula-straminea","status":"publish","type":"post","link":"https:\/\/micologica-barakaldo.org\/eu\/russula-straminea\/","title":{"rendered":"Russula straminea"},"content":{"rendered":"

=Russula maculata<\/em> var. globispora<\/em> Blum, Bull. Soc. Mycol. France 68(2): 232, 1952<\/p>\n

=Russula globispora<\/em> (Blum) Bon, Doc. Mycol., 65: 55, 1986<\/p>\n

Caracteres macrosc\u00f3picos<\/em>. P\u00edleo de hasta 90 mm de di\u00e1metro, inicialmente subgloboso, despu\u00e9s convexo, pero pronto extendido y finalmente un poco deprimido al centro; margen incurvado, delgado, acanalado en los carp\u00f3foros maduros; superficie pil\u00e9ica separable hasta un tercio de la longitud, delgada, un poco lubrificada en tiempo h\u00famedo, brillante, lisa; de color crema cobrizo, pardo cobrizo, con tonos rojizo rosados, , rojizo naranja, decolorado en tonos cremas, con finas manchas herrumbrosas. L\u00e1minas primero apretadas, despu\u00e9s m\u00e1s espaciadas, anchas hasta 10mm, suavemente intervenadas, atenuadas o brevemente decurrentes; de color primero blanquecino, despu\u00e9s amarillentas ocr\u00e1ceas en la madurez; arista entera y concolor. Est\u00edpite de hasta 70 x 25 mm, cil\u00edndrico o un poco claviforme, primero lleno, despu\u00e9s esponjoso, con gruesas rugosidades longitudinales; de color blanco, manch\u00e1ndose de pardo herrumbre en la madurez y en las zonas da\u00f1adas. Contexto espeso, firme, blanquecino, ocre amarillento en unos minutos; olor afrutado, sabor dulce o un ligeramente acre y resinoso. Reacciones macroqu\u00edmicas<\/em>: Guayaco r\u00e1pida e intensa; Sulfato de hierro d\u00e9bil y lenta en gris o gris verdoso.<\/p>\n

Caracteres microsc\u00f3picos<\/em>. Basidi\u00f3sporas de 9,5-12,5-8,4 x 8,5-11,0 \u00b5m \/ Q = 1,1-1,2; globosas a subglobulosas, con gruesa ap\u00edcula, erizadas de espinas moderadamente densas, c\u00f3nico obtusas, de hasta x1,2\u00b5m, aisladas. Esporada amarilla. Cistidios de hasta 100 x 15 \u00b5m, abundantes, claviformes o subfusiformes, rematados en el \u00e1pice con un corto ap\u00e9ndice, con reacci\u00f3n en\u00e9rgica a la sulfovainillina. Pileipellis formada por pelos filiformes, de hasta x 3\u00b5m, largamente obtusos o algo atenuados, septados. Dermatocistidios numerosos, cil\u00edndricos o subfusiformes, de hasta x12\u00b5m, poco septados, obtusos en el \u00e1pice, negruzcos a la sulfovainilla.<\/p>\n

Ecolog\u00eda<\/em>. En verano y principios de oto\u00f1o, en bosques de frondosas (Fagus sylvatica, Quercus sp<\/em>.), Distribuci\u00f3n<\/em>. Muy raro.<\/p>\n<\/div>

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<\/i>VER FICHA COMPLETA<\/span><\/a><\/div>
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