Translator Disclaimer
1 December 2015 Hymenochaetaceae from the Guineo-Congolian Rainforest: Phylloporia flabelliforma sp. nov. and Phylloporia gabonensis sp. nov., Two Undescribed Species from Gabon
Cony Decock, Prudence Yombiyeni, Hervé Memiaghe
Author Affiliations +
Abstract

Phylloporia flabelliforma sp. nov. and Phylloporia gabonensis sp. nov. are described on the basis of specimens originating from the western edge of the lower Guineo- Congolian rainforest, in Gabon. Both species form seasonal, gregarious and sessile basidiomata, with spathulate to flabelliform pilei, emerging in dense clusters at the lower part of living trunks of Dichostemma glaucescens and Anthostema aubryanum, two smallstemmed Euphorbiaceae from the understorey compartment. Both taxa have a pileus surface in a grayish orange tone when fresh, 5–6 irregular pores/mm and a homogeneous, pale corkcolored context, briefly discoloring to reddish or reddish brown in 3% alkali. The hyphal system is monomitic and the basidiospores are ellipsoid to broadly ellipsoid in both species. Phylloporia flabelliforma is specifically characterized by thin pilei, ≤ 1.5 mm at the thickest, with a shiny surface and a thin, and regular white margin. Phylloporia gabonensis has thicker pilei with a dull surface and a lobed, incised margin. Phylogenetic inferences using DNA sequence data from partial nuc 28S (region including the D1/D2/D3 domains) resolved these two species as two distinct but closely related sister clades within the Phylloporia lineage. Phylogenetic inferences using DNA sequence data from the ITS regions confirmed the results obtained from the nuc 28S. These two species are compared to P. fulva and P. inonotoides, both occurring in the same phytochorion in Gabon. They are also compared to Inonotus pusillus and I. dentatus, two species known only from the Neotropics.

© 2015 Adac. Tous droits réservés
Cony Decock, Prudence Yombiyeni, and Hervé Memiaghe "Hymenochaetaceae from the Guineo-Congolian Rainforest: Phylloporia flabelliforma sp. nov. and Phylloporia gabonensis sp. nov., Two Undescribed Species from Gabon," Cryptogamie, Mycologie 36(4), 449-467, (1 December 2015). https://doi.org/10.7872/crym/v36.iss4.2015.449
Published: 1 December 2015
JOURNAL ARTICLE
19 PAGES


Share
SHARE
KEYWORDS
Africa
Basidiomycota
Hymenochaetales
lower Guineo-Congolian rainforest
Polypores
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top