in Wendt, Thermen Warmbrunn: 93 (1839).
Basionym: Baeomyces turbinatus var. crispatus Ach., Methodus: 341 (1803).
Synonyms: Index Fungorum
Type locality: Sweden (H-Ach 1641B - lectotype). Lectotypification by Stenroos (1988).
Photobiont: Trebouxioid green alga.
Chemistry:
Ecology: Data lacking.
Molecular data: Genbank
Distribution: Database
Note: The variety cetrariiformis (Delise) Vain. contains squamatic acid (Din et al. 1999: 3).
Race I: Thamnolic acid (Hodkinson et al. 2009: 69).
Race II: Squamatic acid (Hodkinson et al. 2009: 69).
"Cladonia crispata is morphologically identical to C. atlantica, differing only in chemistry (squamatic or thamnolic acid) and geographic distribution (northern-boreal/Appalachian). The occurrence of this species in the Appalachian Mountains has not previously been discussed, and it is possible that this is because it has either been confused with other species (e.g., C. atlantica and C. squamosa) or it has not been collected. All of the Appalachian records found at NY are from high elevation summits or ridge tops. The southernmost population of this species in the Appalachians is from Marion County, Alabama where both chemotypes were found in a large mixed population (R.C. Harris pers. comm.). The thamnolic acid chemotype, which occurs in Pennsylvania, has historically been referred to as C. carassensis Vain. (Thomson 1967). Ahti (2000) considers C. carassensis to be a distinct taxon from Brazil that does not occur in North America. If one wishes to recognize this chemotype as a distinct taxonomic entity name C. japonica Vain. is available (Ahti 2000)" Lendemer (2009: 139).