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roadside on steep volcanic tuff cliff face in lower canyon, with Astrohyptis seemannii, bursera lancifolia, Montanoa leucantha.
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at edge of steep, east facing road cut in volcanic rhyolitic tuff above the Barranca Batopilas, with Perityle batopilensis, Commicarpus scandens, Mirabilis viscosa, Brahea aculeata, Nolina matapensis.
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below pouroff on steep volcanic tuff cliff face in lower canyon, with Commicarpa scandens, Celtis iguanea, Agave vilmoriniana, Eysenhardtia orthocarpa. Site now destroyed by new paved highway to Batopilas.
