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By: Erickson, Ralph OType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 32Series:Issue:Date: 1945Page Range: 413--460Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects:
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By: Erickson, Ralph OType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 28Series:Issue:Date: 1941Page Range: 293--298Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects:
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By: Erickson, Ralph OType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 30Series:Issue:Date: 1943Page Range: 63--68Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects:
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By: Erickson, Ralph OType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 30Series:Issue:Date: 1943Page Range: 1--62Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects:
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By: Erickson, Ralph OType: ArticleIn: Madroño; a West American journal of botanyVolume: 6Series:Issue:Date: 1942Page Range: 259--260Publication Info: Berkeley California Botanical SocietySubjects:
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By: Erickson, Ralph O - Brenner, Louis G - Wraight, JosephType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 29Series:Issue:Date: 1942Page Range: 89--101Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects: