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Nonsymbiotic Germination of Orchid Seeds
Vol 73, Iss 1, Page 1
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Yellow-White Pine Formation at Little Manistee, Michigan
Vol 73, Iss 1, Page 26
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Formulas for Calculating Number of Fruits Required for Adequate Sample for Analysis
Vol 73, Iss 1, Page 44
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Random Assortment in Inheritance of Distinguishable Homologous Chromosomes
Vol 73, Iss 1, Page 80
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Sulphur as a Factor in Soil Fertility
Vol 73, Iss 2, Page 81
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Cyclic Manifestation of Sterility in Brassica pekinensis and B. chinensis
Vol 73, Iss 2, Page 110
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The Peltate peperomias of North America
Vol 73, Iss 2, Page 133
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Flowers and Insects. XXI. Data of Anthecology
Vol 73, Iss 2, Page 148
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Soil Conditions and Plant Growth.E. J. Russell
Vol 73, Iss 2, Page 153
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Species Hybrids
Vol 73, Iss 2, Page 154
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Fusarium Resistant Cabbage
Vol 73, Iss 2, Page 155
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Abnormal Behavior in Corn Endosperm
Vol 73, Iss 2, Page 157
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Taxonomic Notes
Vol 73, Iss 2, Page 159
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Influence of Salts on Bacterial Activities of Soil
Vol 73, Iss 3, Page 161
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Symbiosis in a Deciduous Forest. I
Vol 73, Iss 3, Page 200
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Effect of Temperature on Germination of Amaranthus Retroflexus
Vol 73, Iss 3, Page 213
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Nitrogen Fixation in Ericaceae
Vol 73, Iss 3, Page 226
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Rhizophidium Polysiphoniae in the United States
Vol 73, Iss 3, Page 236
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Taxonomic Notes
Vol 73, Iss 3, Page 243
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Citrus Diseases in the Orient
Vol 73, Iss 3, Page 244
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Deccan Vegetation
Vol 73, Iss 3, Page 245
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Tension Zone Between Forest and Prairie
Vol 73, Iss 3, Page 246
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Nitrogen Fixation by Green Plants
Vol 73, Iss 3, Page 247
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Variation in Stomata and Hydathodes
Vol 73, Iss 3, Page 248
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Developmental Selection in Vascular Plants
Vol 73, Iss 4, Page 249
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Biochemistry of Plant Diseases. III. Effect of Sclerotinia cinerea on Plums
Vol 73, Iss 4, Page 287
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Variations in Cytology and Gross Morphology of Taraxacum. I. Cytology of Taraxacum laevigatum
Vol 73, Iss 4, Page 308
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Annularia with Paleostachya Fruit
Vol 73, Iss 4, Page 326
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The Unarmored Peridiniales
Vol 73, Iss 4, Page 329
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A New Type of Nuclear Division
Vol 73, Iss 4, Page 330
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Cytology of Porphyra
Vol 73, Iss 4, Page 331
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Pink Root of Onions
Vol 73, Iss 4, Page 332
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Transmission of Potato Wilts
Vol 73, Iss 4, Page 333
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Vertical Distribution of Fucus
Vol 73, Iss 4, Page 334
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Scrophulariaceae and Orobanchaceae
Vol 73, Iss 4, Page 335
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Permeability
Vol 73, Iss 4, Page 336
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Cytology of Chlorophyll Types of Maize
Vol 73, Iss 5, Page 337
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Cultivation of Excised Root Tips and Stem Tips Under Sterile Conditions
Vol 73, Iss 5, Page 376
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Influence of Wheat Seedlings Upon the Hydrogen Ion Concentration of Nutrient Solutions
Vol 73, Iss 5, Page 391
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Sulphur and Nitrogen Content of Alfalfa Grown Under Various Conditions
Vol 73, Iss 5, Page 401
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Vegetation and Climate
Vol 73, Iss 5, Page 416
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Anatomy and Biology of Gymnosperm Leaves
Vol 73, Iss 5, Page 417
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Respiration of Thermophiles
Vol 73, Iss 5, Page 419
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Soil Moisture
Vol 73, Iss 5, Page 420
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Nutrients for Rhizopus
Vol 73, Iss 5, Page 421
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Plants of Mississippi
Vol 73, Iss 5, Page 422
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Action of Lichens on Glass
Vol 73, Iss 5, Page 423
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Potassium and Growth of Plants
Vol 73, Iss 5, Page 424
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Variations in Cytology and Gross Morphology of Taraxacum. II. Senescence, Rejuvenescence, and Leaf Variation in Taraxacum
Vol 73, Iss 6, Page 425
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Anatomy of Equisetum giganteum
Vol 73, Iss 6, Page 447
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Overwintering of Tomato Mosaic
Vol 73, Iss 6, Page 469
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Stroma and Formation of Perithecia in Hypoxylon
Vol 73, Iss 6, Page 486
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Quantitative Relations of Regeneration
Vol 73, Iss 6, Page 496
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The Rapprochement in Ecology
Vol 73, Iss 6, Page 497
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Stomatal Regulation
Vol 73, Iss 6, Page 499
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Ecology of Heather
Vol 73, Iss 6, Page 502
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Cytology of Neottia Nidus-avis
Vol 73, Iss 6, Page 503
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Further Studies on Tmesipteris
Vol 73, Iss 6, Page 504
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Life Cycles of Bacteria
Vol 73, Iss 6, Page 505
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Use of Nutrient Salts of Low Solubility
Vol 73, Iss 6, Page 507
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Inhibition by Metabolic Products
Vol 73, Iss 6, Page 508