Observation 95266: Caloplaca litoricola Brodo
When: 2012-05-22
Herbarium specimen reported

Notes: on near vertical Si rock, salt spray zone
overgrowing Hydropunctaria maura

Species Lists


I had not realized the degree to which KOH changes spore morphology. KOH swells spores overall, and greatly reduces the septum. The left image shows a representative group of spores in water. In KOH most of these will resemble the ones on the right.The 2 photos are at exactly the same scale.
Walter Lockwood lichenizing about 100m from collection location for this specimen

Proposed Names

83% (1)
Eye3 Eyes3
Used references: McCune’s key Caloplaca in Pacific Northwest, Revised July 2011 at http://people.oregonstate.edu/~mccuneb/Caloplaca.pdf; Arup, ULf (1995) Eight Species of Caloplaca in Coastal Western North America. Bryologist 98(1): 92-111
Based on microscopic features: asci ca. 85×26u
spores 8/ascus, mature ave. ca. 18×15 with septum 6u
parapheses simple, ca. 2u, ca. 3u at tips
Based on chemical features: disc K+purplish

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Richard Droker (wanderflechten)
2012-05-23 18:24:32 PDT (-0700)

Thank you. Presently its a Nikon D7000. (Using a Boreal dissecting scope and a Meiji compound scope. Both have ports for attaching an SLR. Also using Helicon focus stacking software.)

Nice microscopy shots.
By: NeoSporen
2012-05-23 10:41:48 PDT (-0700)

What type of camera do you use with your microscope?

low tide only
By: Richard Droker (wanderflechten)
2012-05-23 10:15:34 PDT (-0700)

It connects to the island at low tide. Just have to get off in time. Easily missed if working on lichens.

Nice rock!
By: Jason Hollinger (jason)
2012-05-22 00:03:04 PDT (-0700)

You can scramble out to that thing?? Does the sea have to be calm? Low tide? Looks like an amazing place to study, but damn, I’d hate to get stuck there. :)

Created: 2012-05-21 22:19:19 PDT (-0700)
Last modified: 2012-05-21 22:19:21 PDT (-0700)
Viewed: 138 times, last viewed: 2016-10-25 20:21:04 PDT (-0700)
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