Observation 131488: Catillaria chalybeia (Borrer) A. Massal.

on Si rock in spray zone with Buellia and Lecidella

Collected this specimen for Buellia stellulata record for Lummi Island Heritage Trust Baker Preserve inventory with Walter Lockwood and Fred Rhoades, but when looked more closely noticed the (nondescript) very thin greenish-black lichen with tiny lecideine apothecia, which seems to fit C. chalybeia relatively well with the exception of hypothecium which my references have as darker.

“saxicolous; on both sandstones and igneous rocks, usually but not exclusively at maritime sites” “occasional scattered at maritime sites in the southern part of the CDFD [Coastal Douglas Fir Dry Subzone of southern Vancouver Island which should be similar to Lummi Island] subzone, not collected in adjacent zones” – Nobel (1982)

Oliver Gilber (2000) mentions C. Chalybeia on limestones, slate roofs, blue engineering brick of railroad bridges, intermittently submerged shores of rivers and lakes and supralittoral rock and shingle.

“Very common but variable, especially in thallus appearance.” – Smith et al. (2009)

“In our area known from BC and Oregon” – McCune (2007)

reported new for WA by Ryan, Bruce (1988) Marine and Maritime Lichens on Serpentine Rock on Fidalgo Island, Washington. The Bryologist 91(3) 186-190 (don’t see how to add more references)

some photos -



C – CatillariaB – BuelliaL – Lecidella
this is a close up of the dark area at the bottom of the 1st photo, marked with C
KOH apothecium 280u across (and relatively thick)
note dark apical caps of paraphyses

Proposed Names

55% (1)
Used references: A. Fletcher & B.J. Coppins in Smith, C.W., Aptroot, A., Coppins, B.J., Fletcher, A., Gilbert, O.L., James, P.W. and Wolseley, P.A. (2009) The Lichens of Great Britain and Ireland; Thomson, H. Hertel, T. H. Nash and B. C. Ryan in Nash III, T.H., Gries, C. and Bungartz, F. (eds.) (2007) Lichen Flora of the Greater Sonoran Desert Region, Volume 3;McCune, Bruce (2007) Miscellaneous Keys to Microlichens of the Pacific Northwest of North America; J.W. (1997) American Arctic Lichens, 2. The Microlichens; Noble, W. J. (1982) The Lichen Flora of the Coastal Douglas-fir Dry Subzone of British Columbia. Ph.D. Thesis, University of British Columbia, Reprinted and nomenclaturally updated in 1996 by Bruce McCune with per mission of the author.
Based on microscopic features: hymenium 40u high (for ascus 280u across); spores 8/ascus, 1-septate, 9×3u; paraphyses simple with black cap
Based on chemical features: K-neg; (would like to do N test

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Add Comment
common around here as finding many specimens now
By: Richard Droker (wanderflechten)
2013-04-21 19:12:57 CDT (-0500)

Just noticed a round cobble with Buellia stellulata that was being used as a paper weight also had something similar to Catillaria chalybeia. Realized that I had quite a few specimens from salt spray areas (including from some relatively polluted sites within Seattle) that seemed to have the same combination. Brief examination of apo section seems to confirm. If correct this seems consistant with Smith et al. and Gilbert, but alters McCune’s note.

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Created: 2013-04-07 11:41:05 CDT (-0500)
Last modified: 2013-04-23 17:34:48 CDT (-0500)
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