Protoacia Spirin & V. Malysheva, 2019

Protoacia Spirin & V. Malysheva View in CoL View at ENA , Nordic Journal of Botany 37 (e 02394): 19, 2019.

Note.

For the genus description, see Spirin et al. (2019 b).

Type species.

Protoacia delicata Spirin & V. Malysheva.

The generic type of Protoacia , P. delicata , possesses broadly ellipsoid or subglobose basidiospores. Here we add two new species with ellipsoid to cylindrical basidiospores to Protoacia . However, we do not amend the generic description of Protoacia due to the somewhat uncertain status of the genus versus Gelacantha (see Results). The single species of that genus, G. pura , differs from the three Protoacia species in having more robust basidiocarps with irregularly distributed and partly fusing spines, as well as wider subicular hyphae and hyphidia. At least one more undescribed species closely related to P. delicata can be recognised based on available sequences in GenBank (Fig. 3 View Figure 3 ).