Ceriporia amazonica Soares, Sotão & Ryvarden, 2014

Soares, Adriene Mayra Da Silva, Sotão, Helen Maria Pontes, Ryvarden, Leif & Gibertoni, Tatiana Baptista, 2014, Ceriporia amazonica (Phanerochaetaceae, Basidiomycota), a new species from the Brazilian Amazonia, and C. albobrunnea, a new record to Brazil, Phytotaxa 175 (3), pp. 176-180 : 177-178

Ceriporia amazonica Soares, Sotão & Ryvarden , sp. nov. ( Fig. 1 : A−C)

Mycobank no.: MB 808528

This species differs from the other Ceriporia species by its combination of salmon basidioma, large angular pores (1 –3 per mm) and small ellipsoid spores.

Holotype: — BRAZIL. Amapá: Amapá National Forest , December 2009, leg. H. Sotão 2009-278 ( MG 203521, isotype in O).

Etymology: —the name refers to the region where the specimen was collected.

Basidioma annual, resupinate; pore surface salmon (45) to peach (46) colored when fresh and snuff brown (17) when dry, fading to yellowish brown, pores shallow, angular to honeycomb in a reticulate pattern, 1−3 per mm, margin narrow, concolorous with pore surface, tube layer up to 0.5 mm deep, drying brittle, subiculum thin, up to 300 μm thick, soft, white. Hyphal system monomitic, generative hyphae simple-septate, thin-walled, 2−5 μm in diam. Cystidia or other sterile hymenial elements absent. Basidia not seen. Basidiospores ellipsoid, 3 × 2 μm, negative in Melzer’s reagent.

Distribution: —Known only from the type locality in state of Amapá, Brazil.

Ecology: —On a dead, fallen hardwood.

Taxonomic remarks:— The salmon-coloured basidioma makes this a conspicuous species when observed in the field. Ceriporia spissa (Schwein. ex Fr.) Rajchenb. has a similar color, but it has pores ranging from 7−9 per mm and allantoid basidiospores ( Aime et al. 2007). In addition, the basidiospores of C. amazonica are among the smallest in the genus and should aid in the identification of the species. Ceriporia incrustata M. Mata & Ryvarden and C. microspora I. Lindblad & Ryvarden have basidiospores of similar size (3−3.5 × 1.8−2 μm and 3−3.5 × 1.5−2 μm, respectively), but smaller pores (6−8 per mm in both species). Besides, the former has ochraceous basidiomata and the latter, white basidiomata ( Lindblad & Ryvarden 1999, Mata & Ryvarden 2010).

Figures

FIGURE 1. Ceriporia amazonica A. Dried basidiomata; B. Fresh basidiomata; C. Basidiospores on the left; Pores on the right. Photos: H. Sotão; drawings L. Ryvarden.