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Synopsis of the genus Lepanthes in Mexico
Vol 61, Page 1, Date 1959
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Notes on the flora of a gorge of Eso-pus Creek, New York
Vol 61, Page 21, Date 1959
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Plants new to Illinois and to the Chicago region
Vol 61, Page 24, Date 1959
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A MILESTONE IN BOTANICAL CARTOGRAPHY
Vol 61, Page 28, Date 1959
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THE PRESENT STATUS OF THE RECENTLY DESCRIBED GENUS, TEUSCHERIA
Vol 61, Page 35, Date 1959
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A revision of Bartonia and Obolaria (Gentianaceae)
Vol 61, Page 43, Date 1959
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Elsholtzia ciliata in Essex County. Massachusetts
Vol 61, Page 63, Date 1959
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The northernmost station of Magnolia virginiana its history and present status
Vol 61, Page 65, Date 1959
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Allium speculae, a new species of the Allium canadense alliance from Alabama
Vol 61, Page 70, Date 1959
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An alternative explanation of subspeciation in Asclepias tuberosa
Vol 61, Page 72, Date 1959
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Notes on the distribution of Ohio Compositae: II Eupatorieae, Senecioneae, Cynareae, Cichorieae
Vol 61, Page 76, Date 1959
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The Balanophoraceae in the Caribbean flora
Vol 61, Page 79, Date 1959
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New names within the section Tridentatae of Artemisia
Vol 61, Page 82, Date 1959
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A new varietal combination in Oxy-baphus
Vol 61, Page 85, Date 1959
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The genus Piricauda (Deuteromycetes)
Vol 61, Page 87, Date 1959
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Naturalized mugo pine in New Hampshire
Vol 61, Page 121, Date 1959
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Discovery of Arenaria marcescens in the United States
Vol 61, Page 123, Date 1959
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New Forms of Trillium recurvatum
Vol 61, Page 124, Date 1959
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A Modern Style in Floristic Studies
Vol 61, Page 125, Date 1959
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Interesting fungi from Massachusetts
Vol 61, Page 127, Date 1959
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Separotheca, a new genus (Commelinaceae) from Mexico
Vol 61, Page 136, Date 1959
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Natural hybridization of Helianthus longifolius with H atrorubens and H. occidentalis
Vol 61, Page 140, Date 1959
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Wallpaper Cleaner in the Herbarium
Vol 61, Page 147, Date 1959
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Rhododendron maximum in New Hampshire
Vol 61, Page 148, Date 1959
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Flora and Vegetation of the Alps
Vol 61, Page 150, Date 1959
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Potentilla anglica in New York
Vol 61, Page 152, Date 1959
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Hymenopappus filifolius var. alpestris (Maguire) Shinners, comb. nov
Vol 61, Page 155, Date 1959
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A revision of the Houstonia pur-purea group (Rubiaceae)
Vol 61, Page 157, Date 1959
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Peucedanum pa-lustre, and interesting addition to the flora of Essex County. Massachusetts
Vol 61, Page 181, Date 1959
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A new apecies of Justicia from Florida
Vol 61, Page 183, Date 1959
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Two crucifers new to Essex County. Massachusetts
Vol 61, Page 187, Date 1959
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A revision of the Houstonia pur-purea group (Rubiaceae)
Vol 61, Page 188, Date 1959
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The discovery and naming of the genus Nyssa
Vol 61, Page 209, Date 1959
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A new Peperomia from Jamaica
Vol 61, Page 218, Date 1959
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Viola eriocarpa vs. pensylvanica
Vol 61, Page 219, Date 1959
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The type of Setaria faberii
Vol 61, Page 220, Date 1959
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An interpretation of two forms of Osmunda cinnamomea
Vol 61, Page 223, Date 1959
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A revision of Eucnide
Vol 61, Page 231, Date 1959
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Thelesperma nuecense, a new species from South Texas and its bearing on the status of T filifolium
Vol 61, Page 243, Date 1959
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Two grasses new to Essex County, Massachusetts
Vol 61, Page 247, Date 1959
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Cabomba caroliniana in Rockingham County. New Hampshire
Vol 61, Page 248, Date 1959
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The status of Hypericum prolificum
Vol 61, Page 249, Date 1959
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The genus Synthlipsis (Cruciferae)
Vol 61, Page 253, Date 1959
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Distributional and cytological notes on Salsola collina
Vol 61, Page 265, Date 1959
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Some additions to the vascular flora of New Hampshire
Vol 61, Page 268, Date 1959
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A NEW MANUAL FOR CALIFORNIA
Vol 61, Page 270, Date 1959
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Contributions to the flora of Nova Scotia VII Distribution of some aquatic and paludial species
Vol 61, Page 275, Date 1959
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Notes on Cyperaceae from Illinois
Vol 61, Page 290, Date 1959
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TYPIFICATION OF THE GENUS FORESTIERA (OLEACEAE)
Vol 61, Page 293, Date 1959
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Additional note on vegetative reproduction in Carex tribuloides and C. projecta
Vol 61, Page 294, Date 1959
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Remarks on the Virginia location of Shortia galacifolia
Vol 61, Page 297, Date 1959
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A naturally occurring F1 hybrid of Monarda media and M fistulosa
Vol 61, Page 302, Date 1959
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New combinations in Thelypteris
Vol 61, Page 305, Date 1959
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Illinois flora: Notes on Eriochloa and Jussiaea
Vol 61, Page 307, Date 1959
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THE STATUS AND DISTRIBUTION OF ELEPHANTOPUS ELATUS
Vol 61, Page 309, Date 1959
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THE SECOND VOLUME OF SPECIES PLANTARUM
Vol 61, Page 312, Date 1959