Dirina is a genus of the Roccellaceae with c. 13 infrageneric taxa mostly occurring in coastal regions of Mediterranean and subtropical climates. The genus, originally monographed by Tehler (1983), has been recently re-visited by Tehler & al. (2013) also on the basis of molecular data. This key includes all taxa of Dirina known to occur in Italy (including some forms of doubtful taxonomic value), plus Ingaderia vandenbomii, a mostly sterile, sorediate species of coastal rocks which is difficult to distinguish from sorediate forms of D. fallax growing in the same habitat, whose presence in Italy is possible.

References

Tehler A. 1983. The genera Dirina and Roccellina (Roccellaceae). Opera Botanica, 70: 1-86.
Tehler A., Ertz D., Irestedt M. 2013. The genus Dirina (Roccellaceae, Arhoniales) revisited. Lichenologist, 45, 4: 427-476.

Last modified: February, 11, 2024

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