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REVIEW OF THE JUGLANDACEAE IN THE U. S. S. R
Volume 11, Page 1
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CHROMOSOME NUMBER AND BEHAVIOR IN THE GENUS SYRINGA
Volume 11, Page 7
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CHROMOSOME NUMBER IN THE GENUS FORSYTHIA
Volume 11, Page 14
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The woody plants of Siguatepeque, Honduras
Volume 11, Page 15
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Three new plants from Yucatan
Volume 11, Page 47
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NOTULAE SYSTEMATICAE AD FLORAM SINENSEM
Volume 11, Page 48
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NOTES ON FOREST DISEASES IN NOVA SCOTIA
Volume 11, Page 55
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THE SPONTANEOUS FLORA OF THE ARNOLD ARBORETUM
Volume 11, Page 63
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A second supplement to the flora of Barro Colorado Island, Panama
Volume 11, Page 119
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RHADINOPUS, A PRESUMED NEW GENUS OF RUBIACEAE FROM NEW GUINEA
Volume 11, Page 129
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Additions to the Library
Volume 11, Page 131
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THUJA ORIENTALIS AND JUNIPERUS CHINENSIS
Volume 11, Page 135
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THE SPREAD AND THE CONTROL OF PHACIDIUM BLIGHT IN SPRUCE PLANTATIONS
Volume 11, Page 136
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CHROMOSOMES AND PHYLOGENY IN CAPRIFOLIACEAE
Volume 11, Page 147
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NEW SPECIES, VARIETIES AND COMBINATIONS FROM THE HERBARIUM AND THE COLLECTIONS OF THE ARNOLD ARBORETUM
Volume 11, Page 153
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THE PHYTOPHTHORA DISEASE OF THE CALLA IN AMERICA
Volume 11, Page 169
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A PLANT COLLECTOR'S NOTES ON THE NEW HEBRIDES AND SANTA CRUZ ISLANDS
Volume 11, Page 172
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ERNEST HENRY WILSON
Volume 11, Page 181
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A new Arundinaria from China
Volume 11, Page 192
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CHROMOSOME STRUCTURE AND THE MECHANISM OF CROSSING OVER
Volume 11, Page 193
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CHROMOSOME NUMBERS IN QUERCUS
Volume 11, Page 220
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NOTULAE SYSTEMATICAE AD FLORAM SINENSEM, II
Volume 11, Page 224
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A SUPPLEMENT TO J. T. P. BYHOUWER, "AN ENUMERATION OF THE ROSES OF YUNNAN"
Volume 11, Page 228
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NOTE ON DARLINGIA SPECTATISSIMA F. V. MUELL. WITH DESCRIPTION OF A NEW VARIETY
Volume 11, Page 231
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GRAFT-BLIGHT OF LILAC
Volume 11, Page 232
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The Arnold Arboretum during the Fiscal year ended June 30, 1930
Volume 11, Page 233
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INDEX
Volume 11, Page 245
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THE ORIGIN AND RELATIONSHIPS OF THE POMOIDEAE
Volume 12, Page 3
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CYTOMYXIS
Volume 12, Page 23
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STUDIES IN GANODERMA
Volume 12, Page 25
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PTERIDOPHYTES COLLECTED FOR THE ARNOLD ARBORETUM ON VANIKORO, SANTA CRUZ ISLANDS, BY S. F. KAJEWSKI
Volume 12, Page 46
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A synopsis of Robinsonella
Volume 12, Page 49
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GRAFT-BLIGHT: A DISEASE OF LILAC RELATED TO THE EMPLOYMENT OF CERTAIN UNDERSTOCKS IN PROPAGATION
Volume 12, Page 79
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Species of Rhododendron
Volume 12, Page 146
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A PREVIOUSLY UNDESCRIBED PANDOREA FROM NORTHEAST QUEENSLAND, AUSTRALIA
Volume 12, Page 149
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NOTULAE SYSTEMATICAE AD FLORAM SINENSEM, III
Volume 12, Page 151
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CONSPECTUS OF THE GENUS AMORPHA
Volume 12, Page 157
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ON THE OCCURRENCE OF CASUARINA NODIFLORA FORST. IN AUSTRALIA
Volume 12, Page 197
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Polyploidy in the Betulaceae
Volume 12, Page 206
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MILESINA RUSTS ON ASPIDIUM BRAUNII SPENNER
Volume 12, Page 218
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A Silvicultural Study of Abies pinsapo
Volume 12, Page 219
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CONTRIBUTION TO THE FLORA OF THE NEW HEBRIDES: PLANTS COLLECTED BY S. F. KAJEWSKI IN 1928 AND 1929
Volume 12, Page 221
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FOUR NEW PALMS COLLECTED IN THE TERRITORY OF PAPUA (BRITISH NEW GUINEA) BY L. J. BRASS
Volume 12, Page 264
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TWO PANDANACEAE FROM THE NEW HEBRIDES COLLECTED BY S. F. KAJEWSKI
Volume 12, Page 269
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NOTES ON CHINESE PLANTS
Volume 12, Page 270
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NOTES ON THE LIGNEOUS PLANTS DESCRIBED BY H. LÉVEILLÉ FROM EASTERN ASIA
Volume 12, Page 275
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A STUDY OF CHROMOSOME NUMBER IN TWO GENERA OF BERBERIDACEAE: MAHONIA AND BERBERIS
Volume 12, Page 281
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CHROMOSOMES OF SOME HEVEA SPECIES
Volume 12, Page 287
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THREE SPECIES OF BOTRYODIPLODIA (SACC.) ON ELM TREES IN THE UNITED STATES
Volume 12, Page 289
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The Arnold Arboretum during the Fiscal year ended June 30, 1931
Volume 12, Page 296