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EDWARD L. GREENE AND HOWELL'S 'FLORA OF NORTHWEST AMERICA'
Volume 13, Page 1
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REVISION OF THE DIOECIOUS AMARANTHS
Volume 13, Page 5
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THE STATUS OF PSEUDOHOMALOMENA PASTOENSIS
Volume 13, Page 47
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How to Know the Grasses by Richard W. Pohl
Volume 13, Page 48
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STUDIES IN NORTH AMERICAN VOLVOCALES. I. THE GENUS GONIUM
Volume 13, Page 49
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FLORA OF THE CRESTED BUTTE QUADRANGLE, COLORADO
Volume 13, Page 64
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Manual of the Plants of Colorado by H. D. Harrington
Volume 13, Page 78
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NOTES AND NEWS
Volume 13, Page 80
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ERNEST BROWN BABCOCK 1877—1954
Volume 13, Page 81
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SOME CONSIDERATIONS OF THE GENERA ECHINOCYSTIS AND ECHINOPEPON IN THE UNITED STATES AND NORTHERN MEXICO
Volume 13, Page 84
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MOSSES OF CALIFORNIA V. PTERIGONEURUM OVATUM AND P. SUBSESSILE
Volume 13, Page 100
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CHROMOSOME NUMBERS IN MENTZELIA (LOASACEAE)
Volume 13, Page 102
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CHROMOSOME COUNTS IN THE SECTION SIMIOLUS OF THE GENUS MIMULUS (SCROPHULARIACEAE)
Volume 13, Page 107
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NOTES ON NEVADA MIMULUS
Volume 13, Page 110
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NOTES AND NEWS
Volume 13, Page 112
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SOME TAXONOMIC AND ECOLOGICAL CONSIDERATIONS OF THE GENUS MARAH (CUCURBITACEAE)
Volume 13, Page 113
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OBSERVATIONS ON PRASIOLA MEXICANA, A FRESHWATER ALGA OF UNKNOWN RELATIONSHIPS
Volume 13, Page 138
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A NEW SPECIES OF BOUVARDA (RUBIACEAE) FROM BAJA CALIFORNIA, MEXICO
Volume 13, Page 140
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BIOSYSTEMATICS OF HELIANTHUS DEBILIS
Volume 13, Page 145
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A NEW TRIFOLIUM FROM OREGON
Volume 13, Page 167
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A NEW RECORD OF DWARF MISTLETOE ON LODGEPOLE AND WESTERN WHITE PINE
Volume 13, Page 170
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PROSOPIS GLOBOSA GILL. IN BAJA CALIFORNIA
Volume 13, Page 172
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Weeds. (Second Edition) by W. C. Muenscher
Volume 13, Page 175
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NOTES AND NEWS
Volume 13, Page 176
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STUDIES IN THE CAPPARIDACEAE II. THE MEXICAN SPECIES OF CLEOMELLA: TAXONOMY AND EVOLUTION
Volume 13, Page 177
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TWO FUNGI ASSOCIATED WITH A MICROCYCLIC RUST, COLEOSPORIUM CROWELLII CUMMINS, ON NEEDLES OF PINUS EDULIS ENGELM. IN ARIZONA
Volume 13, Page 189
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DOCUMENTED CHROMOSOME NUMBERS OF PLANTS
Volume 13, Page 205
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NOTES AND NEWS
Volume 13, Page 207
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NOTES ON THE PHACELIA MAGELLANICA COMPLEX IN THE PACIFIC NORTHWEST
Volume 13, Page 209
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THE DISTRIBUTION OF QUERCUS BOYNTONI
Volume 13, Page 221
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ON THE GENERIC LIMITS OF ERIOPHYLLUM (COMPOSITAE) AND RELATED GENERA
Volume 13, Page 226
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NEW SPECIES OF ELATINE IN CALIFORNIA
Volume 13, Page 239
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NOTES ON MALVACEAE. VIII. EREMALCHE
Volume 13, Page 241
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MUHLENBERGIA BRANDEGEI, A NEW SPECIES FROM BAJA CALIFORNIA, MEXICO, AND ITS RELATIONSHIP TO MUHLENBERGIA BILOBA
Volume 13, Page 244
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PHYTOSEROLOGY VERSUS GENEALOGY IN ZEA MAYS
Volume 13, Page 252
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JOSEPH BURKE IN 1853
Volume 13, Page 259
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A NEW GOSSYPIUM FROM MICHOACAN, MEXICO
Volume 13, Page 261
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A SUMMARY OF THE NOMENCLATURE OF DOUGLAS-FIR, PSEUDOTSUGA MENZIESII
Volume 13, Page 265
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NOTES AND NEWS
Volume 13, Page 268