Two new Hyphodontia species, H. pseudotropica and H. rhizomorpha spp. nov., are described based on morphological and molecular characters. Hyphodontia pseudotropica is characterized by poroid hymenophore with buff to buff-yellow pore surface, a monomitic hyphal system with thick-walled, frequently branched generative hyphae and oblong-ellipsoid basidiospores, and plenty of bladder-like cystidia. Hyphodontia rhizomorpha is distinguished by poroid hymenophores when juvenile, cracked with age; white pore surface, larger pores (1–2 per mm), bearing white rhizomorphs, a monomitic hyphal system with encrusted generative hyphae, and ellipsoid to broadly ellipsoid basidiospores (4.3–5.5 × 3.7–4.1 µm). Both morphological characters and phylogenetic analysis inferred from ITS sequences confirmed the placement of the two new species in Hyphodontia s.l. and showed its relationships with similar species in the genus.
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Vol. 35 • No. 1