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The systematics and breeding system of Gelsemium (Loganiceae)
Vol 51, Iss 1, Page 1, Date 1970
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The genera of Ulmaceae in the southeastern United States
Vol 51, Iss 1, Page 18, Date 1970
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The Ecology of an Elfin Forest in Puerto Rico, 10. Notes on Two Species of Marcgravia
Vol 51, Iss 1, Page 41, Date 1970
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The Ecology of an Elfin Forest in Puerto Rico, 11. the Leafy Hepaticae of Pico Del Oeste
Vol 51, Iss 1, Page 56, Date 1970
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Types of Blind Vein-Endings in the Dichotomous Venation of Circaeaster
Vol 51, Iss 1, Page 70, Date 1970
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Comparative Morphological Studies in Dilleniaceae, V. Leaf Anatomy
Vol 51, Iss 1, Page 89, Date 1970
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The Morphology and Germination of the Seed of Elephantorrhiza elephantina
Vol 51, Iss 1, Page 114, Date 1970
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A new species of Ormosia from Brazil
Vol 51, Iss 1, Page 129, Date 1970
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A Revision of the Boraginaceae of West Pakistan and Kashmir
Vol 51, Iss 2, Page 133, Date 1970
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The genera of the Cannabaceae in the southeastern United States
Vol 51, Iss 2, Page 185, Date 1970
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Notes relating to the floras of Norfolk and Lord Howe Islands, I
Vol 51, Iss 2, Page 204, Date 1970
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The Ecology of an Elfin Forest in Puerto Rico, 12. a New Species of Gonocalyx (Ericaceae)
Vol 51, Iss 2, Page 221, Date 1970
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Analysis of the Complex Vascularity in Stems of Dioscorea Composita
Vol 51, Iss 2, Page 228, Date 1970
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The taxonomic status of Protocyrtandra (Gesneriaceae)
Vol 51, Iss 2, Page 241, Date 1970
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Haploid and Diploid Pollen in Hypericum patulum
Vol 51, Iss 2, Page 247, Date 1970
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Studies in the Leguminosae 11. A New Species of Derris from the Solomon Islands
Vol 51, Iss 2, Page 251, Date 1970
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The genera of Acanthaceae in the southeastern United States
Vol 51, Iss 3, Page 257, Date 1970
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Floral morphology and vascular anatomy of the Hamamelidaceae: The apetalous genera of Hamamelidoideae
Vol 51, Iss 3, Page 310, Date 1970
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A Revision of the Boraginaceae of West Pakistan and Kashmir
Vol 51, Iss 3, Page 367, Date 1970
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Comparative Morphological Studies in Dilleniaceae, VI. Stamens and young stem
Vol 51, Iss 3, Page 403, Date 1970
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Additional notes on the Malesian species of Zanthoxylum (Rutaceae)
Vol 51, Iss 3, Page 423, Date 1970
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Notes on the genus Galipea (Rutaceae) in Central America
Vol 51, Iss 3, Page 427, Date 1970
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The genera of Molluginaceae and Aizoaceae in the southeastern United States
Vol 51, Iss 4, Page 431, Date 1970
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Seedling morphology in the Juglandaceae, the Cotyledonary node
Vol 51, Iss 4, Page 463, Date 1970
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The vascular system in the axis of Dracaena fragrans (Agavaceae). 2. Distribution and development of secondary vascular tissue
Vol 51, Iss 4, Page 478, Date 1970
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Relationships in the Piriqueta caroliniana--P. cistoides complex (Turneraceae)
Vol 51, Iss 4, Page 492, Date 1970
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A revision of the Boraginaceae of West Pakistan and Kashmir
Vol 51, Iss 4, Page 499, Date 1970
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The genera of Chrysobalanaceae in the southeastern United States
Vol 51, Iss 4, Page 521, Date 1970
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A new species of Parietaria (Urticaceae) fron Northeastern Mexico
Vol 51, Iss 4, Page 529, Date 1970
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Chromosome numbers in the Juglandaceae
Vol 51, Iss 4, Page 534, Date 1970
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The ecology of an Elfin forest in Puerto Rico, 13. Phytochemical screening and literature survey
Vol 51, Iss 4, Page 540, Date 1970
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Index [vol. 51]
Vol 51, Iss 4, Page 547, Date 1970