Ganoderma chocoense J.A. Flores, C.W. Barnes & Ordonez , in Crous et al., Persoonia 41: 365 (2018)

Mardones, Melissa, Carranza-Velazquez, Julieta, Mata-Hidalgo, Milagro, Amador-Fernandez, Xaviera & Urbina, Hector, 2023, Taxonomy and phylogeny of the genus Ganoderma (Polyporales, Basidiomycota) in Costa Rica, MycoKeys 100, pp. 5-47 : 5

Ganoderma chocoense J.A. Flores, C.W. Barnes & Ordonez, in Crous et al., Persoonia 41: 365 (2018)

Fig. 3D

Discussion.

this species was recently described from Ecuador ( Crous et al. 2018). We collected a single specimen (GA-03) in the Braulio Carrillo National Park in north-eastern Costa Rica. Macroscopical characteristics agree with the description in the protologue of G. chocoense ( Crous et al. 2016).

The BLASTN search and the phylogenetic analyses grouped the ITS sequences of the specimen GA-03 with the sequences of the holotypes of G. chocoense (QCAM 3123) and G. podocarpense (QCAM-6422) with the highest score in similarity and strong support at the nodes (1/87), respectively. The morphological characteristics of G. podocarpense ( Crous et al. 2017), a recently described species from Ecuador, are similar to G. chocoense. The distinction between both species is unclear and they are probably synonyms. Additional collections and molecular markers of both species are necessary to clarify the circumscription of these species. Considering that we only have a single specimen and the lack of basidiospores in the examined specimen, we believe it is necessary to collect more material before confirming the presence of the species in the country.

Specimens examined.

Costa Rica. Heredia: Santo Domingo, San Luis, Parque Nacional Braulio Carrillo , entrada San Josecito , 10°02'57.2"N, 84°01'16.6"W, 1200 m elev., 04 Jul 2018, M. Mardones, J. Carranza, M. Mata GA-03 (USJ109707, sequences ITSOQ845457, LSUOQ835181, TEF OR022013 ) .

Figures

Figure 3. In-situ photos of basidiocarps of Ganoderma spp. in Costa Rica A G. amazonense (GA- 30) B G. applanatum (GA- 54) C G. australe (GA- 58) D G. cf. chocoense (GA- 03) E, F G. curtisii (JCV 128 - 10) G G. ecuadorense (MMG- 181) H G. oerstedii (Saenz 2049) I G. parvulum (GA- 09). Scale bars: 20 cm (A, H); 3 cm (B, C); 1 cm (D, E, I).