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MONOGRAPH OF THE GENUS ELODEA: PART 4 AND SUMMARY. I. Monograph of the genus Elodea, part 4: The species of Eastern and Central North America
Vol 67, Page 1
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A new species of Lagenophora [cuchumatanica] (Compositae) from Guatemala
Vol 67, Page 36
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Genotypic variation in the Phacelia hirsuta complex [Hydrophyllaceae]
Vol 67, Page 42
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EULOPHIA ECRISTATA AND EPIDENDRUM CONOPSEUM IN MISSISSIPPI
Vol 67, Page 48
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Determination of the developmental pattern of angio-spermous leaves populations]
Vol 67, Page 49
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Errata for Rhodora Volume 66
Vol 67, Page 54
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Natural and artificial hybrids of Cacalia atriplicifolia and C. muhlenbergii. [Compositae]
Vol 67, Page 55
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Notes on varieties of Bidens connata and a hybrid with B. cernua
Vol 67, Page 59
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A revision of the North American species of Helianthemum (Cistaceae)
Vol 67, Page 63
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An earlier name for Ludwigia natans [L. repens Forst.l. (Onagraceae)
Vol 67, Page 83
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MOUNTAIN FLOWERS OF NEW ENGLAND
Vol 67, Page 84
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A SECOND CHARACTER DISTINGUISHING HETEROTHECA S. STR. FROM CHRYSOPSIS (COMPOSITAE: ASTEREAE)
Vol 67, Page 86
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TULOSTOMA BRUMALE PERS. A NEW RECORD FOR NEW ENGLAND
Vol 67, Page 89
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NEW RECORDS OF ARCTIC SPECIES IN SOUTHEASTERN NEW BRUNSWICK
Vol 67, Page 92
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COMMON TREES OF PUERTO RICO AND THE VIRGIN ISLANDS
Vol 67, Page 93
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Dissecting equipment and materials for the study of minute plant structures
Vol 67, Page 95
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Studies in the Flora of Bolivia,–III. Cyperaceae, part 1
Vol 67, Page 97
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Genotyplc variation in the Phacelia strictiflora complex FHydrophyllaceael
Vol 67, Page 139
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Interpretation of crossing diagrams
Vol 67, Page 146
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Monograph of the genus Elodea, summary
Vol 67, Page 155
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Flowering plants new to or rare in Kentucky
Vol 67, Page 180
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THE TYPIFICATION OF XANTHOCEPHALUM (COMPOSITAE)
Vol 67, Page 182
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Two species of Chamaesyce (Euphorbiaceae) new to the United States
Vol 67, Page 185
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Chromosome numbers in Penstemon (Scro-phulariaceae). L New mitotic counts
Vol 67, Page 187
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Additions to the vascular flora of Oklahoma
Vol 67, Page 191
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Chamaesaracha villosa [Solanaceae] new to Texas
Vol 67, Page 194
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Notes on the flora of Coos County, New Hampshire
Vol 67, Page 195
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An eastern variety of Carex fissa [aristata] (Multiflorae) [Cyperaceae]
Vol 67, Page 198
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Impomoea amnicola (Convolvulaceae), a South American waif in Missouri
Vol 67, Page 200
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A revision of the North American species of Helianthemum (Cistaceae)
Vol 67, Page 201
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TAXONOMY OF HAPLOPAPPUS, SECTION ISOPAPPUS (COMPOSITAE)
Vol 67, Page 217
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A new species of Senecio from Costa Rica
Vol 67, Page 239
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SOIL ALGAE OF FORTY PONDS UNDER CONSTRUCTION AT ITHACA, NEW YORK
Vol 67, Page 242
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A revision of the North American species of Helianthemum (Cistaceae)
Vol 67, Page 255
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THE EXTENDED DISTRIBUTION OF ERAGROSTIS TRACYI FROM SANIBEL ISLAND, FLORIDA
Vol 67, Page 312
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Erratum for Rhodora Volume 67, Number 770
Vol 67, Page 313
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Nomenclatural changes and additions to Britton & Wilson's "Flora of Porto Rico and the Virigin Islands"
Vol 67, Page 315
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THE STATUS OF CAREX INCOMPERTA BICKN
Vol 67, Page 361
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THE DISTRIBUTION PATTERNS OF NORTHERN AND SOUTHERN ELEMENTS IN THE FLORA OF NEWFOUNDLAND
Vol 67, Page 363
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THE MOUNTAIN ELEMENT IN THE FLORA OF THE PENINSULA OF VIRGINIA
Vol 67, Page 393
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Discovery of the Massachussetts fern in Wisconsin
Vol 67, Page 399
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A THIRD SUBSPECIES IN THE ARTEMISIA TRIDENTATA COMPLEX
Vol 67, Page 405
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Geocaulon lividum [Santalaceae] in New England
Vol 67, Page 407
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Further notes on Chamaecyparis thyoides in New Hampshire
Vol 67, Page 409