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STATICE IN NORTH AMERICA
Vol 19, Page 1, Date 1917
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THE GENUS ELATINE IN EASTERN NORTH AMERICA
Vol 19, Page 10, Date 1917
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A NEW AGROPYRON FROM CAPE BRETON
Vol 19, Page 15, Date 1917
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A NEW JUNCUS FROM CAPE COD
Vol 19, Page 17, Date 1917
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A Form of Solidago sempervirens with White Rays
Vol 19, Page 20, Date 1917
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BOTANICAL ACTIVITIES OF PERCIVAL LOWELL
Vol 19, Page 21, Date 1917
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THE GENUS ERECHTITES IN TEMPERATE NORTH AMERICA
Vol 19, Page 24, Date 1917
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A Variety of Spartina new to New England
Vol 19, Page 27, Date 1917
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NOTES ON RARE NEW YORK STATE PLANTS
Vol 19, Page 28, Date 1917
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A glandular Form of Hieracium paniculatum L
Vol 19, Page 37, Date 1917
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Utricularia fibrosa in Massachusetts
Vol 19, Page 38, Date 1917
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Salvia sylvestris L. in County Peel, Ontario
Vol 19, Page 39, Date 1917
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ABNORMAL FLOWER STRUCTURE IN OXALIS STRICTA L
Vol 19, Page 41, Date 1917
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THE SPECIFIC CHARACTERS OF HEPATICA AMERICANA
Vol 19, Page 45, Date 1917
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POLYMNIA UVEDALIA AND ITS VARIETIES
Vol 19, Page 46, Date 1917
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NOTES ON RARE NEW YORK STATE PLANTS. (Continued)
Vol 19, Page 48, Date 1917
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ORCHIDS FOUND IN THE REGION OF ASQUAM LAKE
Vol 19, Page 56, Date 1917
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HELIANTHEMUM DUMOSUM ON THE MAINLAND OF NEW ENGLAND
Vol 19, Page 58, Date 1917
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Glandularity on Veronica Anagallis-aquatica L
Vol 19, Page 60, Date 1917
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REV. E. J. HILL
Vol 19, Page 61, Date 1917
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THE VARIATIONS OF POLYGONUM PENSYLVANICUM
Vol 19, Page 70, Date 1917
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SIEGESBECKIA ORIENTALIS IN ILLINOIS
Vol 19, Page 74, Date 1917
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THE STATUS OF GLYCERIA FERNALDII
Vol 19, Page 75, Date 1917
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TWO NEW MARITIME PLANTS OF NORTHEASTERN NORTH AMERICA
Vol 19, Page 76, Date 1917
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THE SARGASSO SEA
Vol 19, Page 77, Date 1917
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THE IDENTITY OF CIRCAEA CANADENSIS AND C. INTERMEDIA
Vol 19, Page 85, Date 1917
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IS ASTER TARDIFLORUS A HYBRID?
Vol 19, Page 88, Date 1917
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A NEW CARDAMINE FROM SOUTHERN MAINE
Vol 19, Page 91, Date 1917
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Note on Nuphar
Vol 19, Page 92, Date 1917
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A NEW SPECIES OF ERAGROSTIS OF THE OLD WORLD AND NORTH AMERICA
Vol 19, Page 93, Date 1917
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RANGE OF CAREX NOVAE—ANGLIAE EXTENDED INTO PENNSYLVANIA
Vol 19, Page 96, Date 1917
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ANDROPOGON SCOPARIUS IN THE UNITED STATES AND CANADA
Vol 19, Page 100, Date 1917
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ADDITIONS TO THE FLORA OF CONNECTICUT
Vol 19, Page 105, Date 1917
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Carex gynocrates in Pennsylvania
Vol 19, Page 110, Date 1917
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A Diagnostic Character of Nuphar microphyllum
Vol 19, Page 111, Date 1917
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A NEW RUDBECKIA FROM INDIANA
Vol 19, Page 113, Date 1917
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COLOR FORMS OF IMPATIENS BIFLORA
Vol 19, Page 115, Date 1917
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ADDITIONS TO THE FLORA OF CONNECTICUT. (Continued)
Vol 19, Page 119, Date 1917
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FURTHER NOTES ON THE ORCHIDS OF THE REGION OF ASQUAM LAKE
Vol 19, Page 131, Date 1917
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Some further Plants found on Woolwaste at Westford, Massachusetts
Vol 19, Page 132, Date 1917
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CONTRIBUTIONS FROM THE GRAY HERBARIUM OF HARVARD UNIVERSITY.— NEW SERIES, NO. L
Vol 19, Page 133, Date 1917
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New or critical species or varieties of Ranunculus
Vol 19, Page 135, Date 1917
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STUDIES IN CERTAIN NORTH AMERICAN SPECIES OF LATHYRUS
Vol 19, Page 156, Date 1917
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A PRAIRIE NEAR ANN ARBOR, MICHIGAN
Vol 19, Page 163, Date 1917
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REMARKS ON SEVERAL NORTH AMERICAN SPECIES OF ALOPECURUS
Vol 19, Page 165, Date 1917
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Vernonia altissima Nutt. var. taeniotricha, var. nov
Vol 19, Page 167, Date 1917
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Taxonomic and geographic studies in North American ferns
Vol 19, Page 169, Date 1917
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The genus Athyrium and the North American ferns allied to Athyrium filix-femina
Vol 19, Page 170, Date 1917
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PRELIMINARY LISTS OF NEW ENGLAND PLANTS,—XXV
Vol 19, Page 217, Date 1917
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The Tardy Flowering of Plants in Eastern Massachusetts in the Spring of 1917
Vol 19, Page 219, Date 1917