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28 January 2017

Incredible plants: Codium

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Most marine seaweeds can be classified into one of three groups of algae: reds, browns, or greens. The ancestors of today’s green algae are...
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16 January 2017

Muir's "sea mosses"

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At the turn of the year, I visited the John Muir National Historic Site in Martinez , California . This was my second visit in under a ye...
10 December 2016

Incredible plants: The Proteaceae

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Organisms come in all shapes and sizes, even within groups of closely related species. The processes of evolution – selection and drift – h...
30 October 2016

Muir: advocate for the wild

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At a bookstore in Portland in July I purchased a biography of John Muir by history professor Donald Worster. An excellent book, I graduall...
15 October 2016

So it turns out to be a threesome

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Lichens are amazing organisms, drawing out our curiosity both because of their aesthetic appeal and their novel ecological and evolutionary...
24 September 2016

Incredible plants: tiger lilies

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Lilium columbianum , near Comet Falls, Mt. Rainier National Park, July 2016. Lilies are a stunning group of flowering plants, and many...
18 September 2016

Butte Lake, Lassen Volcanic National Park

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View of Mt. Lassen from inside the crater of  Cinder Cone, Aug 2016. Except perhaps for Redwood National Park , I've been to Lass...
14 August 2016

Thornton Lakes, North Cascades National Park

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The northern Cascades, looking south from the Thornton Lakes area. 2016 is the centennial year of the National Park Service, and with a...
31 July 2016

Snow Lake, Mt. Rainier National Park

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Snow lake, the southern end. Alpine lakes are one of my favorite destinations in the mountain wildernesses of the Pacific states. At hi...