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AN ANALYSIS OF GEOGRAPHICAL VARIATION IN WESTERN NORTH AMERICAN MENZIESIA (ERICACEAE)
Vol 20, Page 1, Date 1969
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THE DISTRIBUTION OF PINACEAE IN AND NEAR NORTHERN NEVADA
Vol 20, Page 12, Date 1969
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LAURA M. LORRAINE, 1904-1968
Vol 20, Page 26, Date 1969
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The Population Bomb by Paul R. Ehrlich
Vol 20, Page 28, Date 1969
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Rocky Mountain Flora by William A. Weber
Vol 20, Page 29, Date 1969
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Taxonomy of Flowering Plants. 2nd ed by C. L. Porter
Vol 20, Page 30, Date 1969
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Handbook of Northwestern Plants by Helen M. Gilkey, La Rea M. Dennis
Vol 20, Page 31, Date 1969
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THE XEROPHYTIC CUCURBITA OF NORTHWESTERN MEXICO AND SOUTHWESTERN UNITED STATES
Vol 20, Page 33, Date 1969
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SOME NEW SPECIES, NEW COMBINATIONS, AND NEW RECORDS OF RED ALGAE FROM THE PACIFIC COAST
Vol 20, Page 42, Date 1969
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A NEW NAME FOR A SPECIES OF POLYPODIUM FROM NORTHWESTERN NORTH AMERICA
Vol 20, Page 53, Date 1969
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THE PYGMY FOREST-PODSOL ECOSYSTEM AND ITS DUNE ASSOCIATES OF THE MENDOCINO COAST
Vol 20, Page 60, Date 1969
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NEW RECORDS OF MYXOMYCETES FROM OREGON. I
Vol 20, Page 75, Date 1969
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The Evolution and Classification of Flowering Plants by Arthur Cronquist
Vol 20, Page 77, Date 1969
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Flora of Alaska and Neighboring Territories by Eric Hultén
Vol 20, Page 78, Date 1969
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NEOGENE FLORISTIC AND VEGETATIONAL HISTORY OF THE PACIFIC NORTHWEST
Vol 20, Page 83, Date 1969
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ECOLOGIC PLANT GEOGRAPHY OF THE PACIFIC NORTHWEST
Vol 20, Page 111, Date 1969
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SOIL DIVERSITY AND THE DISTRIBUTION OF PLANTS, WITH EXAMPLES FROM WESTERN NORTH AMERICA
Vol 20, Page 129, Date 1969
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PHYTOGEOGRAPHY OF NORTHWESTERN NORTH AMERICA: BRYOPHYTES AND VASCULAR PLANTS
Vol 20, Page 155, Date 1969
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A NEW SPECIES OF CASTILLEJA FROM THE SOUTHERN SIERRA NEVADA
Vol 20, Page 209, Date 1969
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TWO NEW SPECIES OF UMBELLIFERAE FROM THE SOUTHWESTERN UNITED STATES
Vol 20, Page 214, Date 1969
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AGROSTIS PERENNANS (POACEAE), A REMOTE DISJUNCTION IN THE PACIFIC NORTHWEST
Vol 20, Page 220, Date 1969
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A MUTANT OF LITHOCARPUS DENSIFLORUS
Vol 20, Page 221, Date 1969
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CHROMOSOME NUMBERS IN SOME NORTH AMERICAN SPECIES OF THE GENUS CIRSIUM. II. WESTERN UNITED STATES
Vol 20, Page 225, Date 1969
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A NEW COPROPHILOUS SPECIES OF CALONEMA (MYXOMYCETES)
Vol 20, Page 229, Date 1969
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A NEW CAMPANULA FROM NORTHERN CALIFORNIA
Vol 20, Page 231, Date 1969
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PROPOSED CALIFORNIA TREE ATLAS
Vol 20, Page 236, Date 1969
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Flora Europaea. Vol. 2 by T. G. Tutin, V. H. Heywood, N. A. Burges, D. M. Moore, D. H. Valentine, S. M. Walters, D. A. Webb
Vol 20, Page 237, Date 1969
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Vascular Plants of the Pacific Northwest. Part 1 by C. Leo Hitchcock, Arthur Cronquist, Marion Ownbey, J. W. Thompson
Vol 20, Page 238, Date 1969
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Supplement to A California Flora by Philip A. Munz
Vol 20, Page 239, Date 1969
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A NEW SPECIES AND SOME NEW COMBINATIONS IN CALYLOPHUS (ONAGRACEAE)
Vol 20, Page 241, Date 1970
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TWO NEW SPECIES AND SOME NOMENCLATURAL CHANGES IN OENOTHERA SUBG. HARTMANNIA (ONAGRACEAE)
Vol 20, Page 246, Date 1970
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STUDIES ON PLANTS OF THE GALÁPAGOS ISLANDS. I. NEW SPECIES AND COBINATIONS
Vol 20, Page 250, Date 1970
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A NEW COMBINATION IN TRICHONEURA FROM THE GALÁPAGOS ISLANDS
Vol 20, Page 253, Date 1970
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A NEW VARIETY OF OPUNTIA MEGASPERMA FROM THE GALÁPAGOS ISLANDS
Vol 20, Page 254, Date 1970
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NEW COMBINATIONS IN THE COMPOSITAE OF THE GALÁPAGOS ISLANDS
Vol 20, Page 255, Date 1970
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NEW COMBINATIONS AND TAXA IN THE CACTACEAE OF THE GALÁPAGOS ISLANDS
Vol 20, Page 256, Date 1970
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NOTES ON GALÁPAGOS EUPHORBIACEAE
Vol 20, Page 257, Date 1970
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NOMENCLATURAL CHANGES AND NEW SUBSPECIES IN THE CENTROSPERMAE OF THE GALÁPAGOS ISLANDS
Vol 20, Page 264, Date 1970
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A NEW SPECIES OF POLYGONUM (POLYGONACEAE)
Vol 20, Page 266, Date 1970
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CHROMOSOME NUMBERS AND A PROPOSAL FOR CLASSIFICATION IN SISYRINCHIUM (IRIDACEAE)
Vol 20, Page 269, Date 1970
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COMPARATIVE NATURAL HISTORY OF TWO SYMPATRIC POPULATIONS OF PHOLISTOMA (HYDROPHYLLACEAE)
Vol 20, Page 276, Date 1970
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A PRELIMINARY REPORT OF THE MYXOMYCETES OF CRATER LAKE NATIONAL PARK, OREGON
Vol 20, Page 278, Date 1970
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A NEW VARARIA FROM WESTERN NORTH AMERICA
Vol 20, Page 282, Date 1970
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Plants of the Oregon Coastal Dunes by Alfred M. Wiedemann, La Rea J. Dennis, Frank H. Smith
Vol 20, Page 287, Date 1970
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Grass Systematics by Frank W. Gould
Vol 20, Page 288, Date 1970
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THE FLORA AND PLANT COMMUNITIES OF BODEGA HEAD, CALIFORNIA
Vol 20, Page 289, Date 1970
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THE CONSPECIFICITY OF HETEROSIPHONIA ASYMMETRIA AND H. DENSIUSCULA AND THEIR LIFE HISTORIES IN CULTURE
Vol 20, Page 313, Date 1970
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A NEW PROSTRATE VARIETY OF ERIOGONUM APRICUM (POLYGONACEAE)
Vol 20, Page 320, Date 1970
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CLARKIA JOLONENSIS (ONAGRACEAE), A NEW SPECIES FROM THE INNER COAST RANGES OF CALIFORNIA
Vol 20, Page 321, Date 1970
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CONCERNING THE VALIDITY OF LAMPRODERMA ECHINOSPORUM
Vol 20, Page 323, Date 1970
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PERENNATION IN ASTRAGALUS LENTIGINOSUS AND TRIDENS PULCHELLUS IN RELATION TO RAINFALL
Vol 20, Page 326, Date 1970
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Principles and Methods of Plant Biosystematics by Otto T. Solbrig
Vol 20, Page 332, Date 1970
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The Native Cacti of California by Lyman Benson
Vol 20, Page 333, Date 1970
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Modern Methods in Plant Taxonomy by V. H. Heywood
Vol 20, Page 335, Date 1970
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EMBRYOLOGY OF CHRYSOTHAMNUS (ASTEREAE, COMPOSITAE)
Vol 20, Page 337, Date 1970
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TWO NEW SPECIES OF LAMOUROUXIA (SCROPHULARIACEAE) IN MEXICO
Vol 20, Page 342, Date 1970
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A NEW TETRAGASTRIS (BURSERACEAE) FROM PANAMA
Vol 20, Page 346, Date 1970
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NOTES ON SOME MEXICAN SPECIES OF GOSSYPIUM (MALVACEAE)
Vol 20, Page 347, Date 1970
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Records And Observations On A Rare Plant, Oxalis Laxa In California
Vol 20, Page 349, Date 1970
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OENOTHERA BRANDEGEEI FROM BAJA CALIFORNIA, MEXICO, AND A REVIEW OF SUBGENUS PACHYLOPHUS (ONAGRACEAE)
Vol 20, Page 350, Date 1970
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POLLEN APERTURE VARIATION AND PHYLOGENY IN DICENTRA (FUMARIACEAE)
Vol 20, Page 354, Date 1970
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FOSSIL LEAVES OF LYONOTHAMNUS
Vol 20, Page 359, Date 1970
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CHROMOSOME STUDIES IN MELAMPODIUM (COMPOSITAE, HELIANTHEAE)
Vol 20, Page 365, Date 1970
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HAROLD ERNEST PARKS
Vol 20, Page 373, Date 1970
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NEW RECORDS OF MYXOMYCETES FROM CALIFORNIA IV
Vol 20, Page 377, Date 1970
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Fasciation Of Coastal Redwoods
Vol 20, Page 382, Date 1970
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Marin Flora. Manual of the Flowering Plants and Ferns of Marin County, California. Second edition with supplement by John Thomas Howell
Vol 20, Page 383, Date 1970
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Nightshades, The Paradoxical Plants by Charles B. Heiser, Jr
Vol 20, Page 384, Date 1970
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AN ECOLOGICAL CONTRIBUTION TO THE TAXONOMY OF ARTEMISIA
Vol 20, Page 385, Date 1970
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A Tribute from the California Botanical Society
Vol 20, Page 387, Date 1970
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IRIS PSEUDACORUS IN WESTERN NORTH AMERICA
Vol 20, Page 390, Date 1970
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A NEW SPECIES OF PROBOSCIDEA (MARTYNIACEAE) FROM BAJA CALIFORNIA, MEXICO
Vol 20, Page 392, Date 1970
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A NEW ASTRAGALUS (FABACEAE) FROM NEVADA
Vol 20, Page 395, Date 1970
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NOTES ON LOEFLINGIA (CAROPHYLLACEAE)
Vol 20, Page 398, Date 1970
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UNUSUAL FACTORS CONTRIBUTING TO THE DESTRUCTION OF YOUNG GIANT SEQUOIAS
Vol 20, Page 408, Date 1970
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LINEAR MICROSPORE TETRADS IN THE GRASS STIPA ICHU
Vol 20, Page 411, Date 1970
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EXTENSION OF THE RANGE OF ABIES LASIOCARPA INTO CALIFORNIA
Vol 20, Page 413, Date 1970
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The Plant Hunters by Tyler Whittle
Vol 20, Page 415, Date 1970
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Plant Variation and Evolution by D. Briggs, S. M. Walters
Vol 20, Page 416, Date 1970