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Contributions to the Flora of the New Hebrides: Plants Collected by S.F. Kajewski in 1928 and 1929
Vol 13, Iss 1, Page 1
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Kalmiopsis, a New Genus of Ericaceae from Northwest America
Vol 13, Iss 1, Page 30
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Diaxylary Laticiferous Cells of Beaumontia grandiflora
Vol 13, Iss 1, Page 35
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Chromosome Numbers and the Anatomy of the Secondary Xylem in the Oleaceae
Vol 13, Iss 1, Page 37
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Chromosome Numbers in the Genus Tilia
Vol 13, Iss 1, Page 49
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Studies on the Precipitin Reaction in Plants: I. the Specificity of the Normal Precipitin Reaction
Vol 13, Iss 1, Page 52
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The Occurrence in the United States of Cryptococcus fagi (Baer) Dougl., the Insect Factor in a Menacing Disease of Beech
Vol 13, Iss 1, Page 75
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Contribution to the Flora of the New Hebrides: Plants Collected By S. F. Kajewski in 1928 and 1929
Vol 13, Iss 2, Page 81
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Contribution to the Flora of the New Hebrides and Santa Cruz Islands: Orchids Collected By S. F. Kajewski in 1928 and 1929
Vol 13, Iss 2, Page 127
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A New Genus of the Orchidaceae from the New Hebrides
Vol 13, Iss 2, Page 142
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Synopsis of the Chinese Species of Jasminum
Vol 13, Iss 2, Page 145
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The Cytological Mechanism of Crossing Over
Vol 13, Iss 2, Page 180
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Contributions to the Tradescantia Problem
Vol 13, Iss 2, Page 213
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A Comparative Study of Three Phytophthora Diseases of Lilac and of Their Pathogens
Vol 13, Iss 2, Page 232
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Parasitism of Myxomycete Plasmodia on the Sporophores of Hymenomycetes
Vol 13, Iss 2, Page 270
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Studies on the Precipitin Reaction in Plants: II. Preliminary Report on the Nature of the "Normal Precipitin Reaction"
Vol 13, Iss 2, Page 285
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Notes on Some Chinese Plants
Vol 13, Iss 2, Page 297
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A Previously Undescribed Variety of Loranthus vitellinus F. V. Muell. from North Queensland
Vol 13, Iss 2, Page 298
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Notes on the Ligneous Plants Described By Léveillé from Eastern Asia
Vol 13, Iss 3, Page 299
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Notulae Systematicae Ad Floram Sinensem IV
Vol 13, Iss 3, Page 333
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New Species, Varieties and Combinations from the Herbarium and the Collections of the Arnold Arboretum
Vol 13, Iss 3, Page 337
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The Crataegus Problem
Vol 13, Iss 3, Page 342
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Chromosome Relationships in the Pomoideae
Vol 13, Iss 3, Page 363
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Chromosome Pairing in Larix Species
Vol 13, Iss 3, Page 368
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Meiosis and Chiasma Formation in Pæonia suffruticosa
Vol 13, Iss 3, Page 375
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Enumeration of the Ligneous Plants Collected By J. F. Rock on the Arnold Arboretum Expedition to Northwestern China and Northeastern Tibet (Additions and Continuation)
Vol 13, Iss 4, Page 385
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Cytological Studies of Cornus
Vol 13, Iss 4, Page 410
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Leaves from a Collector's Note Book
Vol 13, Iss 4, Page 417
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Parasitism of Myxomycete Plasmodia on Fungous Mycelia
Vol 13, Iss 4, Page 438
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Notes
Vol 13, Iss 4, Page 447
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Errata and Addenda [vol. 13]
Vol 13, Iss 4, Page 464
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Index [vol. 13]
Vol 13, Iss 4, Page 465