Hymenochaetaceae from the Guineo-Congolian rainforest: three new species ofPhylloporiabased on morphological, DNA sequences and ecological data

Abstract

Four species are added to Phylloporia. Three species, originating from the western edge of the Guineo-Congolian rainforest in Gabon (central Africa), are described as new. Phylloporia afrospathulata sp. nov. forms seasonal, stipitate, solitary basidiomata emerging from soil, more likely connected to buried roots, and has broadly ellipsoid basidiospores. Phylloporia inonotoides sp. nov. forms seasonal sessile, soft basidiomata, solitary at the base of small-stemmed trees including Crotonogyne manniana (Euphorbiaceae) and Garcinia cf. smeathmannii (Clusiaceae). It has a homogeneous context, large pores (2-3 mm), and oblong-ellipsoid to suballantoid basidiospores. Phylloporia fulva sp. nov. forms sessile, conchate, mostly pendant, gregarious basidiomata emerging from the trunk of an unidentified small-stemmed tree and has small, subglobose basidiospores. This species is compared to Polyporus pullus and Phylloporia pulla comb. nov. and proposed based on the study of the type specimen. Phylogenetic inferences using partial nuc 28S DNA sequence data (region including the D1/D2/D3 domains) and the most exhaustive dataset available to date resolved these new morphospecies as three distinct terminal lineages. No sequence data of P. pulla currently is available. The 28S-based phylogenic inferences poorly resolved the interspecific relationships within the Phylloporia clade.

Two new species of Phylloporia (Hymenochaetales) from the Neotropics

“…These are difficult to align confidently. Accordingly, most phylogenies were based on LSU sequences (Decock et al 2015;Yombiyeni et al 2015;Ferreira-Lopes et al 2016;Zhou 2016;Rajchenberg et al 2019;Wu et al 2019Wu et al , 2022. Although Phylloporia is shown to be monophyletic based on LSU sequences, the genus is composed of a non-trivial number of subclades (Fig.…”

Two new stipitate species of Phylloporia (Basidiomycota, Hymenochaetaceae) from Chamela Biology Station, U.N.A.M. in Jalisco, Mexico

“…Microscopically by a monomitic to rarely dimitic hyphal system, absence of setal elements and small (< 6 µm long), subglobose to cylindrical, yellow, thick-walled, non-dextrinoid and frequently collapsed basidiospores. Nutritional strategies of Phylloporia species are not yet fully understood, it is known they cause white rot on different parts of living angiosperms, but relationships and effects on their host physiology have been rarely studied (Esquivel & Carranza, 1996;Yombiyeni et al, 2015). However, Phylloporia species have been cited as phytopathogens with high host-specialization (Valenzuela et al, 2011; describe their macroscopic and microscopic characteristics, DNA extraction was performed and the 28S rDNA (LSU) was amplified by PCR.…”

“…Zhou & Dai, 2012;Decock et al, 2015), although several species can be found to be saprophytic in dead aerial wood (Douanla-Meli et al, 2007), or terrestrial, connected to living/dead wood (Wagner & Ryvarden, 2002;Ipulet & Ryvarden, 2005;Yombiyeni et al, 2015). Additionally, Yombiyeni et al (2015) refer to the association between habit and the plant organ with the basidiomata in Phylloporia as the «morpho-ecologycal type», and stipitate basidiomata emerging from soil or associated to root had been named «P. spathulata» or «stipitate on root» morpho-ecological type (Ferreira-Lopes et al, 2016).…”

“…spathulata» or «stipitate on root» morpho-ecological type (Ferreira-Lopes et al, 2016). Of the 72 described species of Phylloporia (Index Fungorum, 2022), eight have P. spathulata morpho-ecological type and tropical distribution (Dai, 2010;Yombiyeni et al, 2015;Ferreira-Lopes et al, 2016;Wu et al, 2019). So far, five taxa with stipitate basidiomata have been recorded in the neotropics: P. elegans Ferreira-Lopes, Robledo & Drechsler-Santos, P. nodostipitata Ferreira-Lopes & Drechsler-Santos, P. solicola Oliveira-Filho & Gibertoni, P. verae-crucis (Berkeley ex Saccardo) Ryvarden, and P. spathulata (Wagner & Ryvarden, 2002;Ryvarden, 2004;Valenzuela et al, 2011;Ferreira-Lopes et al, 2016;Wu et al, 2019).…”

Phylloporia lonicerae (Hymenochaetales, Basidiomycota), a new species on Lonicera japonica from Japan and an identification key to worldwide species of Phylloporia

“…Renewed interest in Phylloporia was stimulated by Wagner and Ryvarden’s (2002) phylogenetic and morphological study in which they accepted 12 species. Since then, a number of new species have been described from Africa (Ipulet and Ryvarden 2005, Decock et al 2015, Yombiyeni et al 2015, Yombiyeni and Decock 2017), the Americas (Valenzuela et al 2011, Decock et al 2013, Ferreira-Lopes et al 2016) and Asia, especially China (Gafforov et al 2014, Cui et al 2010, Zhou and Dai 2012, Zhou 2013, 2015a, 2015b, 2016, Liu et al 2015, Chen et al 2017, Ren and Wu 2017). …”