Olson lab field trips

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Click on the thumbnail for images from our trip to central Guerrero with Frank and Marcia Ewers in May 2006:

Mark with a small Bursera grandifolia on a basalt outrcop
Mark with Bursera grandifolia
Frank with the largest Bursera grandifolia we've found so far
Frank with giant Bursera grandifolia
Frank with Beaucarnea hiriartae
Frank and Beaucarnea hiriartae
Beautiful dry season hillsides with giand candelabra Pachycereus
pachycereus on hillside

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Instituto de Biología, Universidad Nacional Autónoma de México
Circuito Exterior s/n, Ciudad Universitaria
Copilco, Coyoacán A. P. 70-367
C. P. 04510, México, D. F.

(52) 55 5622-9127 fon (52) 55 5555-1760 fax
or explore@explorelifeonearth.org

all material © 2006 Mark E Olson