12 January 14

Lichens!

Common lichens of Northern California, pen and wash with watersoluble pencil Numenius and I attended a workshop yesterday put on by the UC Davis Center for Plant Diversity and the California Native Plant Society (Sacramento Chapter). Pam Kirkbride taught the workshop, which was a morning of lecture and practice keying (at which I have very little experience; Numenius has much more) followed by a field trip to just over the Napa County line, where lichens are far more diverse and numerous since it’s just inside the fog belt.

I had learned a little about lichens in connection with natural dyes at my spinning retreat with Judith Mackenzie in 2012. I learned a whole lot more yesterday — the various forms of lichens, their unique symbiotic biology (they are a relationship between fungi and algae), their sensitivity to pollution and other environmental stressors… and their great beauty. This was my first time using a dissecting workshop and now I want one.

I came home with some Ramalina (Spanish moss) I found on the oak woodland floor. I’d like to try it out on some white yarn I have. Lichen dyes don’t need a mordant because of their acidic chemistry. I’ll update when I have something to show!

Posted by at 09:24 AM in Nature and Place | Link |
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