Observation 127729: Ochrolechia subplicans (Nyl.) Brodo
When: 2013-02-03

Notes: Si rock in salt spray zone.

Haven’t yet accessed Brodo 1988 which describes subspecies, which differ in habitat of seashore and alpine. Up to 5 or so radiating ostioles per ascocarp implies O. subplicans var. sublicans I think.

(Initially thought might be Coccotrema maratimum but asci morphology and iodine reaction indicate O. sublicans. See key p.124 in Brodo 2001)

Only photos I could find: Sharnoff’s photo (also in Brodo et al. 2001) – http://www.sharnoffphotos.com/...; and (apparently misidentified as Coccotrema maritimum) in closeup image –
http://www.seaweedsofalaska.com/species.asp?SeaweedID=167 (proximity to C. maritimum is mentioned by Brodo and Sloan (2004) “Accompanying the Coccotrema are such widespread lichens as Placopsis lambii, various species of Rhizocarpon, and rarer west coast species such as Ochrolechia subplicans.”)

Proposed Names

83% (1)
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Used references: Brodo “Studies of the lichen genus Ochrolechia. 1. A new classification for Pertusaria subplicans and P. rhodoleuca” Canadian Journal of Botany, 1988, 66(7): 1264-1269 (abstract); Thomson, J.W. (1997) American Arctic Lichens, 2. The Microlichens; Brodo, Irwin M., Sharnoff, Sylvia Duran and Sharnoff, Stephen (2001) Lichens of North America; Brodo, I.M.; N.A. Sloan (2004). “Zonation on Coastal Rocks in Gwaii Haanas National Park Reserve, Haida Gwaii (Queen Charlotte Islands), British Columbia”. Canadian Field-Naturalist 118: 405–424
Based on microscopic features: spores 50×30u to 65×32u
Based on chemical features: asci IKI + blue

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Created: 2013-02-03 15:04:37 CST (-0500)
Last modified: 2013-02-06 12:16:44 CST (-0500)
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