Species Details

Dermatocarpon meiophyllizum

silverskin lichen

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Scientific Name:
Dermatocarpon meiophyllizum Vainio
Common Name:
silverskin lichen
Family: Verrucariaceae
Element Code: NLTEST91L0
USDA Plants Symbol:
Synonyms/Other Names:
Lifeform: foliose lichen (aquatic)
Blooming Period:
295 - 3495 meters
970 - 11465 feet
General Habitats:
  • Coastal prairie
  • Lower montane coniferous forest
  • North Coast coniferous forest
  • Subalpine coniferous forest
  • Upper montane coniferous forest
Microhabitat Details: Usually aquatic to semi-aquatic, within splash zone of lakes or streams. Preferred habitat is undisturbed, exposed streams with large rocks or bedrock at high elevations, but it is also found in cold, deep canyons at lower elevations.
  • Lake Margins
  • Rocky
  • Streambanks
Misidentified as D. luridum in western North America until 2004. Based on ongoing molecular study (Bruce McCune, unpub.), D. meiophyllizum does not occur in western North America; lichens identified as D. meiophyllizum in CA may be an existing, undetermined Dermatocarpon sp. or a novel taxon. Dermatocarpon meiophyllizum is a placeholder with 2B status until a new name or combination becomes available.
Total Occurrences: 20
Element Occurrence Ranks:
0 0 0 0 0 20
Occurrence Status:
Historical >20 Years 7
Recent <=20 Years 13
Presumed Extant 20
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Colorado (CO), Idaho (ID), Minnesota (MN), Oregon (OR), Washington (WA)
California Counties and Islands: Name (Code)
Alpine (ALP), Inyo (INY), Marin (MRN), Mariposa (MPA), Mono (MNO), Santa Barbara (SBA), Siskiyou (SIS), Trinity (TRI), Tuolumne (TUO)
Quads: Name (Quad Code)
Bates Canyon (3411988), Billys Peak (4112227), Boulder Peak (4112351), Dardanelles Cone (3811947), Disaster Peak (3811946), Dunderberg Peak (3811913), Kibbie Lake (3811917), Mt. Abbot (3711847), Mt. Lyell (3711963), Mt. Morgan (3711846), San Rafael (3712285), Tangle Blue Lake (4112226), Thompson Peak (4112311), Vogelsang Peak (3711973), Ycatapom Peak (4112217)
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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CNPS Status Review: Proposed Addition to California Rare Plant Rank 2B.3, G4 / S3
Original Description: Acta Societatis Pro Fauna et Flora Fennica 49 (2): 1-274 (1921).
Revised Nomenclature: Annales Botanici Fennici 35: 59–70 (1998)
Revised Nomenclature: Evansia 21: 137-140 (2004)
Taxonomic Treatment: Nordic Journal of Botany 20: 605-639 (2001)