Preliminary version 1 January 2016
Caloplaca chlorina (Flot.) Sandst.
Abh. Naturw. Ver. Bremen 21: 217 (1912).
Basionym: Zeora cerina var. chlorina Flot., Jber. Schles. Ges. Vaterl. Kultur 27: 126 (1849).
Synonym: Index Fungorum
Protolog: Data lacking.
Type locality: Data lacking.
Barcode: Data lacking.
Coordinates: Data lacking.
Thallus: crustose, episubstratal, with a distinct bluish grey over-all colour, indeterminate, forming irregular patches up to one dm or more in diameter, areolate, sorediate, sometimes leprose throughout; bluish pigmentation. Prothallus sometimes distinct, brownish to brownish violet. Areolae usually present, indistinct to distinct, bluish grey, sometimes greyish or greenish grey, discrete to contiguous, sometimes confluent, convex and rounded at first, later usually becoming flattened, more or less irregular in outline, more or less incised, sometimes with marginal tuberculae, up to 0.2(-1) mm in diameter. Soralia concolorous with the areolae or darker, often marginal on the areolae, sometimes more or less punctiform where the areolae have been completely dissolved into soredia, usually more or less discrete and up to 0.2 mm in diameter, sometimes becoming confluent forming a leprose sorediate crust. Soredia fine; (15-)20-30(-40) µm in diam., sometimes forming subcylindrical (up to 90 µm long), globose to irregular consoredia, with a distinct, continuous cortex (wall) of globular cells. Medulla indistinct or absent. Photobiont green, coccoid, up to 20 µm in diam.
Apothecia present in 40 (71%) of the specimens, lecanorine, up to 0.6(-0.8) mm in diam., margin greyish blue, prominent at first, later often becoming eroded and flush with the level of the disc; disc orange.
Pycnidia not seen (Tønsberg 1992: 114).
Photobiont: Data lacking.
Chemistry: Thallus K+ violet, N+ violet or ± brown with a violet tinge; no substances. Apothecia K+ purple, rarely brownish and K-, sometimes faintly white pruinose; Parietin (Tønsberg 1992: 114).
Ecology: On rock (Santesson 1984). When corticolous, Caloplaca chlorina is a species of eutropic bark in southern areas (Tønsberg 1992: 115). Nutrient-rich siliceous stones and rocks in rather damp situations, bark of trees (Vondrák & Hrouzek 2006: 7).
Molecular data: Genbank
Distribution: Database
Note: Different author citations:
Caloplaca chlorina (Flot.) Sandst. in Hafellner et al. (1992: 108), Index Fungorum (2012), Tønsberg (1992: 114).
Caloplaca chlorina (Flot.) H. OLivier