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2. Recherches histotaxonomiques sur le chaume des Poaceae;Auquier;Bull. Soc. R. Bot. Belg.,1967
3. A Miocene flora from the western border of the Mojave Desert;Axelrod;Carnegie Inst. Washington Publ.,1939
4. A record of Lyonothamus in Death Valley;Axelrod;Calif. J. Geol.,1940
5. Evolution of the Madro-Tertiary geoflora;Axelrod;Bot. Rev.,1958