Phylogenetic tree obtained from Bayesian analysis of <i>Scleroderma</i> species.

<p>Numbers above branches are parsimony bootstrap (MP-BS), maximum likelihood bootstrap (ML-BS) and posterior probability (PP) values. The position of the three new species described in this paper are marked in colours, indicated by the herbarium number (UFRN = UFRN-Fungos); the rest of branches indicated with their respective GenBank accession numbers, indicated in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0167879#pone.0167879.t001" target="_blank">Table 1</a>.</p

<i>Scleroderma</i> species included in the molecular analyses with their herbarium and/or isolate numbers, country and GenBank accession numbers of internal transcribed spacer (ITS) nuclear ribosomal DNA.

<p>(n.d.: no data). In bold, new species described in this study.</p

<i>Scleroderma duckei</i>.

<p>(A) Fresh basidiomata in the field, bar = 20 mm. (B) Detail of verrucose exoperidium surface, bar = 2 mm. (C) Basidioma cut away side view, bar = 2 mm. (D) Exoperidium hyphae, bar = 20 μm. (E) Basidiospores under LM, bar = 10 μm. (F) Basidiospores under SEM, bar = 2 μm.</p

<i>Scleroderma camassuense</i>.

<p>(A) Fresh basidiomata in the field, bar = 10 mm. (B) Detail of verrucose exoperidium surface, bar = 2 mm. (C) Basidioma cut away side view, bar = 2 mm. (D) Exoperidium hyphae, bar = 20 μm. (E) Basidiospores under LM, bar = 10 μm. (F) Basidiospores under SEM, bar = 2 μm.</p

<i>Scleroderma anomalosporum</i>.

<p>(A) Fresh basidiomata in the field, bar = 30 mm. (B) Detail of reticulation in exoperidium of young basidioma, bar = 2 mm. (C) Basidioma cut away side view, bar = 2 mm. (D) Exoperidium hyphae, bar = 20 μm. (E) Basidiospores under LM, bar = 10 μm. (F) Basidiospores under SEM, bar = 2 μm.</p