Crocodia Link. (Peltigeraceae, Lobarioideae) in northern Argentinean rainforests
A revision of the lichen genus Crocodia Link. in northern Argentinean rainforests is presented. Three species were identified for the region: C. arvidssonii (D.J. Galloway) D.J. Galloway & Elix, C. aurata (Ach.) Link., and C. clathrata (De Not.) Trevis. The distribution range known for these species is extended: C. arvidssonii is recorded for the first time for the country; C. aurata for Corrientes, Misiones, and Salta provinces; and C. clathrata for Corrientes and Jujuy provinces. The morphology of each species is described and illustrated. A distribution map and a key to known species of the genus are also presented.