Mycena Rosella Var

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© Demetrio Merino Alcántara [email protected] Condiciones de uso Mycena rosella (Fr.) P. Kumm., Führ. Pilzk. (Zerbst): 109 (1871) Mycenaceae, Agaricales, Agaricomycetidae, Agaricomycetes, Agaricomycotina, Basidiomycota, Fungi = Agaricus rhodellus Fr., Observ. mycol. (Havniae) 1: 42 (1815) ≡ Agaricus rosellus Fr., Syst. mycol. (Lundae) 1: 151 (1821) ≡ Agaricus rosellus var. rhodellus Pers., Mycol. eur. (Erlanga) 3: 242 (1828) ≡ Agaricus roseus Pers., Tent. disp. meth. fung. (Lipsiae): 24 (1797) ≡ Mycena rosea Sacc., Fl. ital. crypt. 1(14): 256 (1915) ≡ Mycena rosella var. albida Kühner, (1959) ≡ Mycena rosella (Fr.) P. Kumm., Führ. Pilzk. (Zerbst): 109 (1871) var. rosella Material estudiado: España, Burgos, Quintanar de la Sierra, Las Lagunillas, 30TVM9852, 1.476 m, en suelo entre acículas de Pinus sylvestris, 24-X- 2015, leg. Mª. Carmen Gª. Berbén, Dianora Estrada, José Cuesta, Nino Santamaria, José F. Mateo, Javier Sánchez y Demetrio Merino, JA-CUSSTA: 8669. Descripción macroscópica: Píleo de 6-24 mm de ø, de hemisférico a campanulado, con el margen crenulado, liso, de color rosa pálido con el centro más oscu- ro. Láminas adnadas a decurrentes, concoloras con el sombrero, arista entera, más oscura. Estipe de 27-38 x 1-2 mm, cilíndrico, ligeramente engrosado en la base, de color ocráceo claro con tonalidades rosadas, con cordones miceliares blancos, sin anillo. Olor ligeramente herbáceo. Descripción microscópica: Basidios cilíndricos a subclaviformes, bi-tetraspóricos, con fíbula basal, de (22,2-)23,4-27,5(-30,2) x (5,0)5,6-6,8(-8,3) µm; N = 9; Me = 26 x 6,3 µm. Basidiosporas cilíndricas, lisas, apiculadas, gutuladas, de (6,5-)6,9-8,5(-8,9) x (3,3-)3,7-4,6(-5,0) µm; Q = (1,6-) 1,7-2,0(-2,2); N = 81; Me = 7,7 x 4,1 µm; Qe = 1,9. Queilos y pleurocistidios similares, fusiformes, mucronados, digitiformes. Pilei- pellis de hifas paralelas, con excrecencias terminales, fibuladas. Estipipellis con presencia de caulocistidios en el tercio superior. Mycena rosella 20151024 Página 1 de 4 A. Basidios. B. Esporas. Mycena rosella 20151024 Página 2 de 4 C. Cistidios. D. Pileipellis. Mycena rosella 20151024 Página 3 de 4 E. Estipipellis. Observaciones Caracterizada por el tamaño, hábitat y color del carpóforo. Mycena venustula Quél. es también de color rosa, pero es cortícola y de tamaño más pequeño (ROUX, 2006). Agradecemos a José Cuesta y Nino Santamaría la ayuda en la determinación de esta espe- cie. Otras descripciones y fotografías ROUX P. (2006) Mille et un champignons. Edit. Roux. Pág. 584. Salvo indicación en contrario, las fotos han sido realizadas por Demetrio Merino. Mycena rosella 20151024 Página 4 de 4 .

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