Contribution to the study of the Tulostomataceae in Baja California, Mexico. I

Bioclimatic Origin Shapes Phylogenetic Structure of Tirmania (Pezizaceae): New Species and New Record from North Africa

The phylogenetic relationships among Tirmania were investigated using the internal transcribed spacer (ITS) and large subunit (LSU) regions of the nuclear-encoded ribosomal DNA (rDNA) and compared with morphological and bioclimatic data. The combined analyses of forty-one Tirmania samples from Algeria and Spain supported four lineages corresponding to four morphological species. Besides the two previously described taxa, Tirmania pinoyi and Tirmania nivea, here we describe and illustrate a new species, Tirmania sahariensis sp. nov., which differs from all other Tirmania by its distinct phylogenetic position and its specific combination of morphological features. We also present a first record of Tirmania honrubiae from North Africa (Algeria). Our findings suggest that restrictions imposed by the bioclimatic niche have played a key role in driving the speciation process of Tirmania along the Mediterranean and Middle East.

Tulostoma loonbanglaense: A new species from Azad Jammu and Kashmir using light and scanning electron microscopy and DNA barcoding technique

Tulostoma loonbanglaense sp. nov. is described from Azad Jammu and Kashmir, Pakistan. ITS sequences confirm its position within the genus Tulostoma, and suggest that it is separate from other identified species of this genus. The species has globose to subglobose, with wide, solitary and appressed spines basidiospores, the basidiospores are relatively small, 4.39 × 4.23 μm, that make it distinguished from the related species. Sequences of nr ITS region of the newly described species nested as a distinct taxon in both phylogenetic analyses of the current study.

Calocybella, a new genus for Rugosomyces pudicus (Agaricales, Lyophyllaceae) and emendation of the genus Gerhardtia

Calocybella is a new genus established to accommodate Rugosomyces pudicus. Phylogenetic analyses based on a LSU-ITS sequence dataset place Calocybella sister to Gerhardtia from which it differs morphologically in the presence of clamp-connections and reddening context. The genus Gerhardtia is emended to also include taxa with smooth spores. According to our morphological analysis of voucher material, Calocybe juncicola s. auct. is shown to be Calocybella pudica.