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Undescribed Plants from Guatemala. XII
Vol 19, Iss 1, Page 1
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On the Color Description of Flowers
Vol 19, Iss 1, Page 15
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Archenema, Protonema and Metanema
Vol 19, Iss 1, Page 19
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Mutualistic Symbiosis of Algæ and Bacteria with Cycas revoluta
Vol 19, Iss 1, Page 25
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Botanical Notes from Bainbridge, Georgia
Vol 19, Iss 1, Page 33
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Three New Species of Mexican Plants.-Guarea Palmeri
Vol 19, Iss 1, Page 39
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Frost Freaks of Herbaceous Plants
Vol 19, Iss 1, Page 40
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A Hybrid Baptisia
Vol 19, Iss 1, Page 42
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Current Literature
Vol 19, Iss 1, Page 43
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Notes and News
Vol 19, Iss 1, Page 45
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Observations on the Genus Naegelia of Reinsch
Vol 19, Iss 2, Page 49
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On Some Species of Micrasterias
Vol 19, Iss 2, Page 56
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On the Development of the Bulb of the Adder's-Tongue
Vol 19, Iss 2, Page 61
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The Function of the Secondary Tissues in Arborescent Monocotyledons
Vol 19, Iss 2, Page 66
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The Role of the Pericycle in the Root of Dracæna marginata
Vol 19, Iss 2, Page 67
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Vegetable Ferments
Vol 19, Iss 2, Page 68
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Equiseta in the Carboniferous
Vol 19, Iss 2, Page 71
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Current Literature
Vol 19, Iss 2, Page 74
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Acknowledgment
Vol 19, Iss 2, Page 81
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Notes and News
Vol 19, Iss 2, Page 82
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Some Rare Myxomycetes of Central New York, with Notes on the Germination of Enteridium Rozeanum
Vol 19, Iss 3, Page 89
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Notes on the Life History of a Blue-Green Motile Cell
Vol 19, Iss 3, Page 96
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An Auxanometer for the Registration of Growth of Stems in Thickness
Vol 19, Iss 3, Page 113
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Notes Upon the Northwestern and Rocky Mountain Flora. I
Vol 19, Iss 3, Page 117
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Frost Plants
Vol 19, Iss 3, Page 120
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Proposed Seed Collection of the U. S. National Herbarium
Vol 19, Iss 3, Page 121
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Current Literature
Vol 19, Iss 3, Page 122
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On a New Code of Nomenclature
Vol 19, Iss 3, Page 126
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Notes and News
Vol 19, Iss 3, Page 127
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Artificial Cultures of an Entomogenous Fungus
Vol 19, Iss 4, Page 129
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On the Absorption of Water by the Green Parts of Plants
Vol 19, Iss 4, Page 136
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The Ware Collection of Blaschka Glass Models of Flowers at Harvard
Vol 19, Iss 4, Page 144
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The Influence of Mechanical Resistance on the Development and Life-Period of Cells
Vol 19, Iss 4, Page 149
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An Additional Poisonous Plant
Vol 19, Iss 4, Page 159
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Editorial
Vol 19, Iss 4, Page 160
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Current Literature
Vol 19, Iss 4, Page 162
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Notes and News
Vol 19, Iss 4, Page 167
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A Study of Quercus Leana
Vol 19, Iss 5, Page 171
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Contributions to the Histology of the Pontederiaceæ
Vol 19, Iss 5, Page 178
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Notes on Ustilagineæ
Vol 19, Iss 5, Page 185
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The Influence of Mechanical Resistance on the Development and Life Period of Cells (Continued)
Vol 19, Iss 5, Page 191
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Notes from Vermont
Vol 19, Iss 5, Page 200
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Editorial
Vol 19, Iss 5, Page 201
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Current Literature
Vol 19, Iss 5, Page 202
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Notes and News
Vol 19, Iss 5, Page 209
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Leaf Movement in Cercis canadensis
Vol 19, Iss 6, Page 215
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Thomas Morong
Vol 19, Iss 6, Page 225
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The Influence of Mechanical Resistance on the Development and Life-Period of Cells (Concluded)
Vol 19, Iss 6, Page 229
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New Mosses of North America. V
Vol 19, Iss 6, Page 237
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Notes on Richardia Africana
Vol 19, Iss 6, Page 241
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Olpitrichum, a New Genus of Mucedinous Fungi
Vol 19, Iss 6, Page 244
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Current Literature
Vol 19, Iss 6, Page 249
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A Defense of the Botanischer Jahresbericht
Vol 19, Iss 6, Page 250
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"Minnesota Botanical Studies"
Vol 19, Iss 6, Page 252
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Notes and News
Vol 19, Iss 6, Page 253
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A Preliminary Synopsis of the North American Species of Amaranthus
Vol 19, Iss 7, Page 267
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Notes on Our Hepaticæ. II. The Genus Riccia
Vol 19, Iss 7, Page 273
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The Fixation of Free Nitrogen by Plants
Vol 19, Iss 7, Page 284
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The Influence of Traction Upon the Growth of Plants
Vol 19, Iss 7, Page 293
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Synchytrium on Stellaria Media
Vol 19, Iss 7, Page 296
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A Peculiar Malformation of an Ovary and Placenta on Begonia Rubra-Grandiflora
Vol 19, Iss 7, Page 298
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Notes and News
Vol 19, Iss 7, Page 301
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Descriptions of New Species of Uredineæ and Ustilagineæ, with Remarks on Some Other Species. II
Vol 19, Iss 8, Page 303
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James Logan, an Early Contributor to the Doctrine of Sex in Plants
Vol 19, Iss 8, Page 307
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A Preliminary Synopsis of the North American Species of Amaranthus (Concluded)
Vol 19, Iss 8, Page 313
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Nourishment of the Embryo and Importance of the Endosperm in Viviparous Mangrove Plants
Vol 19, Iss 8, Page 327
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A Contribution to the Physiology of the Genus Cuscuta
Vol 19, Iss 8, Page 331
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Germinating Seeds in Sawdust
Vol 19, Iss 8, Page 333
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Note on the Development of a Filamentous Form of Protococcus in Entomostracan Appendages
Vol 19, Iss 8, Page 334
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Cross Fertilization of Petunias
Vol 19, Iss 8, Page 336
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An Abnormal Hepatica
Vol 19, Iss 8, Page 338
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Editorial
Vol 19, Iss 8, Page 339
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Current Literature
Vol 19, Iss 8, Page 341
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Notes and News
Vol 19, Iss 8, Page 344
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The Evolution of the Hepaticæ. Vice-Presidential Address before Section G, A. A. A. S
Vol 19, Iss 9, Page 347
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Proceedings of Section G, A. A. A. S., Brooklyn Meeting, 1894
Vol 19, Iss 9, Page 362
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Papers Read before Section G, A. A. A. S., Brooklyn Meeting, 1894
Vol 19, Iss 9, Page 369
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Titles of Informal Papers and Notes Presented before the Botanical Club, A. A. A. S., Brooklyn Meeting, 1894
Vol 19, Iss 9, Page 382
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Pleodorina in Illinois
Vol 19, Iss 9, Page 383
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Current Literature
Vol 19, Iss 9, Page 385
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Added Synonymy
Vol 19, Iss 9, Page 387
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Notes and News
Vol 19, Iss 9, Page 388
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Filices Mexicanæ. V. An Enumeration of the Ferns Collected in Mexico by C. G. Pringle of Charlotte, Vermont, During the Seasons 1891-1892 and 1893
Vol 19, Iss 10, Page 389
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Notes on Cribraria minutissima and Licea minima
Vol 19, Iss 10, Page 397
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Eduard Strasburger
Vol 19, Iss 10, Page 401
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Physiological Action at a Distance
Vol 19, Iss 10, Page 406
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Color Bodies in Seeds and Seedlings
Vol 19, Iss 10, Page 407
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Investigations on Pine and Oak Wood
Vol 19, Iss 10, Page 409
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Adaptation of African Plants to Climate
Vol 19, Iss 10, Page 413
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Two Wisconsin Fungi
Vol 19, Iss 10, Page 415
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Doassansia ranunculina, n. sp
Vol 19, Iss 10, Page 416
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Current Literature
Vol 19, Iss 10, Page 417
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Notes and News
Vol 19, Iss 10, Page 423
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Popular American Plant-Names. III
Vol 19, Iss 11, Page 429
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The Nature and Distribution of Attraction-Spheres and Centrosomes in Vegetable Cells
Vol 19, Iss 11, Page 445
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Notes on Dédoublement
Vol 19, Iss 11, Page 460
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New Genus of Umbelliferæ
Vol 19, Iss 11, Page 466
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Completoria Complens Lohde
Vol 19, Iss 11, Page 467
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Lemna Valdiviana in Massachusetts
Vol 19, Iss 11, Page 468
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Current Literature
Vol 19, Iss 11, Page 469
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Notes and News
Vol 19, Iss 11, Page 472
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Contribution to the Comparative Histology of Pulvini and the Resulting Photeolic Movements
Vol 19, Iss 12, Page 477
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Two New Ferns from New England. With Some Observations on Hybridity and Nomenclature
Vol 19, Iss 12, Page 492
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Intelligence Manifested by the Swarm-Spores of Rhizophidium Globosum
Vol 19, Iss 12, Page 503
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The Wild Rice of Minnesota
Vol 19, Iss 12, Page 504
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Lemna Valdiviana
Vol 19, Iss 12, Page 507
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Editorial
Vol 19, Iss 12, Page 508
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Current Literature
Vol 19, Iss 12, Page 509
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Notes and News
Vol 19, Iss 12, Page 513