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Calicium adspersum
Common Name: spiral-spored guilded-head pin lichen
Family: Caliciaceae
Element Code: NLT0005640
Full Name: Calicium adspersum Pers.

Biology Glossary
  • Lifeform: crustose lichen (epiphytic)
  • Blooming Period:
  • Habitat: Often restricted to old-growth bark of conifers that are over 200 years in age.
    • Lower montane coniferous forest
    • North Coast coniferous forest
Rarity Status Glossary
Occurrence Data from CDFW
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 1
  • Element Occurrence Ranks:
    A B C D X U
    0 0 0 0 0 1
  • Population Status:
    >20 yrs
    <=20 yrs
    1 0
  • Presence:
    Present Extant Possibly Extirpated Presumed Extirpated
    1 0 0
Notes Glossary
  • Known in CA only from Jedediah Smith Redwoods SP. Historically threatened by logging. Possibly threatened by alteration of fire regimes. Host conifers could include Abies grandis, Pseudotsuga menziesii, Sequoia sempervirens, and Thuja plicata. Similar to C. lenticulare; however, C. adspersum is the only species of Calicium currently known from the Pacific Coast with a yellow pruina. See Bulletin of the California Lichen Society 13(2):51-54 (2006) for CALS Conservation Committee sponsorship.
  • CALS Conservation Committee
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 2014-03-01
  • Last Update: 2014-04-08
Location Glossary
  • Elevation:
  • California Endemic: no
  • Other States: Massachusetts, Oregon, Washington
  • California Counties and Islands:   name (code)
    Del Norte (DNT)
  • Quads:   name (DWR code) USGS code
    Sister Rocks (723B) 4112462,  Crescent City (740C) 4112472,  Hiouchi (740D) 4112471
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable. This data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant Presumed Extirpated or Unknown 3804
Links to Leading Resources of Taxon Information
Suggested Citation
California Native Plant Society, Rare Plant Program. . Inventory of Rare and Endangered Plants of California (online edition, v8-03), with lichen data from the California Lichen Society. Website http://www.rareplants.cnps.org [accessed ].

4112462=Sister Rocks (723B) 4112462;4112472=Crescent City (740C) 4112472;4112471=Hiouchi (740D) 4112471