* Rinodina flavosoralifera Tønsberg (1992: 288) .

Characterized by a thallus composed of yellowish, sorediate areoles reacting C+ orange (arthothelin chemosyndrome) and the large Pachysporaria- type ascospores (up to 35.0 × 18.0 µm) which develop sporoblastidia ( Polyblastidium - type) (Giralt et al. 2010). The species is known in Europe from Norway, Scotland, England and the Pyrenees (France), in North America from Alaska and California and in Africa from the Canary Islands (Giralt et al. 2010, Sheard 2010). The Guatemalan specimens possess better developed apothecia and ascospores than the previously recorded southernmost specimens from the Canary Islands and California.

Material examined: ― GUATEMALA. (A) Quezaltenango: WSW of Quezaltenango, San Martin, SE of village, along path to Laguna Chicabal, mixed forest on NW slope, scattered outcrops along path and at open places, on Alnus, 2700 m, 14° 48.2' N, 91° 38.8' W, 22 July 2004, P. & B. van den Boom 32838 (hb v.d. Boom); (A) S of Quezaltenango, S of Llano del Pinal, N slope of volcano Santa Maria, path among small agriculture fields with small forests, shrubs, trees and outcrops along path, on Baccharis vaccinioides, 2700 m, 14° 46.6' N, 91° 33.3' W, 23 July 2004, P. & B. van den Boom 32975 (hb. v.d. Boom).