In: Sydowia 75, (2023): 139-148; ISSN 0082-0598, DOI 10.12905/0380.sydowia75-2023-0139, Published online on January 31, 2023

Clavulina junduensis – a new species and an identification key of Clavulina (Clavulinaceae) from Brazil

Lara M. Ferst*, Ariadne N. M. Furtado, Duane F. Lima & Maria Alice Neves

Departamento de Botânica, Universidade Federal de Santa Catarina, Campus Universitário Reitor João David Ferreira Lima,
88040-960, Florianópolis (SC), Brazil
* e-mail: laramferst@gmail.com

Ferst L.M., Furtado A.N.M., Lima D.F & Neves M.A. (2023) Clavulina junduensis – a new species and an identification key of
Clavulina (Clavulinaceae) from Brazil. – Sydowia 75: 139–148.

A new species of Clavulina (Clavulinaceae, Cantharellales, Basidiomycota) is proposed from the Atlantic Forest of Santa
Catarina, Southern Brazil. Clavulina junduensis fits the generic concept of Clavulina in having coralloid, branched basidiomata
and basidia with two cornute sterigmata. This species is characterized by purplish-gray basidiomata, brownish-orange stipe, and
context with abundant gloeopleurous hyphae with refringent content and bulbous swellings. We provide a detailed morphological
description of the species and illustrations of the basidiomata as well as a comparison with morphologically similar taxa.
Phylogenetic analyses of Clavulina junduensis and related species were carried out based on the sequences of internal transcribed
spacer region of the nuclear ribosomal RNA gene (nrITS). The phylogenetic results support the placement of our specimens
within the genus Clavulina and confirm its distinctiveness from morphologically similar species. A key to Clavulina species
from Brazil is also provided.

Key words: taxonomy, ITS phylogeny, Cantharellales, neotropics, coral fungi, sp. nov. – 1 new species.