Hypochnicium aff. cremicolor (Bres.) H. Nilsson & Hallenb.

Gorjón, Sergio P. & Jesus, Maria Aparecida De, 2012, Some new species and new records of corticioid fungi (Basidiomycota) from the Brazilian Amazon, Phytotaxa 67 (1), pp. 38-54: 47-48

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http://doi.org/ 10.11646/phytotaxa.67.1.3

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Hypochnicium aff. cremicolor (Bres.) H. Nilsson & Hallenb.


Hypochnicium aff. cremicolor (Bres.) H. Nilsson & Hallenb.  

The studied specimen is characterized by the presence of one kind of thick-walled fusiform cystidia, thickwalled hyphae, and ornamented, broadly ellipsoid basidiospores measuring 5.5–6.5 × 4.5–5 µm ( Fig. 10 View FIGURE 9–12 ). Although thickened hyphae have been reported for H. cremicolor   by Paulus et al. (2007) and Tellería et al. (2010), thick-walled cystidia is not typical for the species. Thick-walled hyphae are not described in H. punctulatum (Cooke) J. Erikss.   nor H. albostramineum (Bres.) Hallenb.   Hypochnicium cremicolor   was previously reported from Uruguay ( Martínez & Nakasone 2011) in South America. It is typically distributed in Europe (Bernicchia & Gorjón 2010) but it has also been reported from the Canary Islands ( Tellería et al. 2010) and Korea ( Jung 1996) Hypochnicium cremicolor   is morphologically and phylogenetically closely related to Hypochnicium cystidiatum Boidin & Gilles   and H. aoteraoe B.C. Paulus, H. Nilsson & Hallenb.   , which have two kinds of cystidia ( Paulus et al. 2007). Hypochnicium guineensis Tellería, M. Dueñas, Melo & M.P. Martín   has more globose basidiospores and encrusted, thick-walled cystidia ( Tellería et al. 2010). Hypochnicium patagonicum Gorjón & Hallenb.   has thick-walled cystidia often with secondary septa and larger basidiospores ( Gorjón & Hallenberg 2012).

Specimen examined: — BRAZIL, Amazonas, Presidente Figuereido, leg. M.A. Jesus, LPM 7385.