James Henrickson and Thomas F. Daniel

Three New Species of Carlowrightia (Acanthaceae) from the Chihuahuan Desert Region by James Henrickson and Thomas F. Daniel

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Thomas F. Daniel and James Henrickson

On the Recognition of Anisacanthus Junceus (Acanthaceae) by Thomas F. Daniel and James Henrickson

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B. L. Turner, John Bacon and Thomas Wendt

Chromosomes and Phyletic Position of Aster Sonorae Gray (Asteraceae-Sect. Oxytripolium) by B. L. Turner, John Bacon and Thomas Wendt

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Two New Species of Umbelliferae From the Southwestern United States [Paperback] Mildred E. Mathias, Lincoln Constance and William L. Theobald

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Two New Apioid Umbelliferae from Southern Mexico [Paperback] Mildred E. Mathias and Lincoln Constance

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A New Species of Bowlesia (Umbelliferae) from Peru [Paperback] Mildred E. Mathias and Lincoln Constance

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New Taxa and new Combinations in the Umbelliferae of Santa Catarina, Brasil [Paperback] Mildred E. Mathias and Lincoln Constance

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Shirley A. Graham

Taxonomy of the Lythraceae in the Southeastern United States by Shirley A. Graham

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A Hybrid Ragweed [Paperback] Robert Bradford Wylie

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Studies of Variation in the Weed Genus Phytolacca. II Latitudinaly Adapted Variants within A North American Species [Paperback] Jonathan D. Sauer

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Chromosome Number and Classification in Hydrophyllaceae [Paperback] Lincoln Constance

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The Classification of Commelinaceae [Paperback] J. P. M. Brenan

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The Lemnaceae (Duckweeds) of North Carolina [Paperback] Dale E. Harrison and Ernest O. Beal

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William S. Alverson

A New Subspecies of Quararibea Funebris (Bombacaceae) From Nicaragua by William S. Alverson

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Clarkia Franciscana, A New Species from Central California [Paperback] Harlan Lewis and Peter H. Raven

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Donald R. Farrar; John T. Mickel

Vittaria appalachiana : A Name for the "Appalachian Gametophyte" by Donald R. Farrar; John T. Mickel

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Reed C. Rollins and Richard A. Howard

A Tribute to George R. Cooley ( May 29, 1896-September 27, 1986) by Reed C. Rollins and Richard A. Howard

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A Legislated Nomenclature for Species of Plants [Paperback] Albert C. Smith

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Umbellales [Paperback] L. Constance

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Vegetation of the Islands of Oceania [Paperback] F. R. Fosberg

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An Unconventional Approach to Comparative Plant Morphology - Based on Differential Growth [Paperback] Not stated

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The Flora of Johnson County, Iowa [Paperback] Robert F. Thorne

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Biosystematy [Paperback] W. H. Camp

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Permanent Numbers to Supplement the Binomial System of Nomenclature [Paperback] Sydney W. Gould

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IOPB Chromosome Number Reports. I [Paperback] Askell Love; Otto T. Solbrig

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L.V. Crowder, J. A. Hawk, T. M. Gradziel and S. E. Fast

Brassica campestris L., a New Plant for Teaching Genetics (Chapter 10 of Tested Studies for Laboratory Teaching) by L.V. Crowder, J. A. Hawk, T. M. Gradziel and S. E. Fast

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Contributions from the United States National Herbarium, Volume 18, Part 6 : New or Noteworthy Plants from Colombia and Central America - 6 [Paperback] Henry Pittier

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Ann K. Sakai, Warren L. Wagner, Diane M. Ferguson and Derral R. Herbst

Origins of Dioecy in the Hawaiian Flora by Ann K. Sakai, Warren L. Wagner, Diane M. Ferguson and Derral R. Herbst

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Increase of the Adaptive Range of the Genus Delphinium [Paperback] Carl Epling; Harlan Lewis

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Mildred E. Mathias; Lincoln Constance

New and Reconsidered Mexican Umbelliferae by Mildred E. Mathias; Lincoln Constance

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Lemna Aequinoctialis Welwitsch : Nueva Para la Flora de America y de las Islas Filipinas [Paperback] Maria Luisa Giardelli

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The Constituents of Leaf Extracts in the Genus Lathyrus and Their Bearing on Taxonomy [Paperback] R. C. Pecket

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