Holtermannia Sacc. & Traverso, Syll. Fung.

Li, A. - H., Yuan, F. - X., Groenewald, M., Bensch, K., Yurkov, A. M., Li, K., Han, P. - J., Guo, L. - D., Aime, M. C., Sampaio, J. P., Jindamorakot, S., Turchetti, B., Inacio, J., Fungsin, B., Wang, Q. - M. & Bai, F. - Y., 2020, Diversity and phylogeny of basidiomycetous yeasts from plant leaves and soil: Proposal of two new orders, three new families, eight new genera and one hundred and seven new species, Studies In Mycology 96, pp. 17-140 : 99

Holtermannia Sacc. & Traverso, Syll. Fung. 19: 871. 1910. emend. Q.M. Wang, F.Y. Bai & A.H. Li.

Type species: Holtermannia pinguis (Holterm.) Sacc. & Traverso.

This genus is emended to include Holtermannia corniformis and six other sexual species ( Kobayasi 1937), and one newly described anamorphic species Holtermannia saccardoi ( Figs 2E and S 1E ).

Sexual reproduction observed in most species. For teleomorphic taxa, the corniform basidiocarps are narrowly clavate and often slightly compressed. The basidiocarps are simple or infrequently branched. The tertiary hyphae have clamp connections ( Bandoni et al. 2011). Colonies whitish to cream, mucoid. Budding cells present. Ballistoconidia formed or not.

Figures

Fig. 2. Phylogenetic tree inferred using the combined sequences of RPB1, RPB2, TEF1, CYTB, SSU rDNA, LSU rDNA D1/D2 domains and 5.8S rDNA, depicting the phylogenetic positions of new taxa (in bold) within Tremellomycetes (Agaricomycotina). The tree backbone was constructed using maximum likelihood analysis. Bootstrap percentages of maximum likelihood analysis over 50 % from 1 000 bootstrap replicates and posterior probabilities of Bayesian inference above 0.9 are shown respectively from left to right on the deep and major branches. Bar = 0.05 substitutions per nucleotide position. Note: ns, not supported (BP <50 % or PP <0.9); nm, not monophyletic. The new taxa are in bold.

Fig. 1. Localisation of sampling sites in China. Red cycles represent soil origin, green cycles represent plant origin.