1. Morphological and chemical evidence on the hybrid nature of bitter pecan, Carya X lecontei

   • Donald E. Stone
   • George A. Adrouny
   • Salpi Adrouny

   OriginalPaper 01 April 1965 Pages: 97 - 106

2. Closing date for research proposals, National Science Foundation

   Notices 01 April 1965 Pages: 106 - 106

3. Cytogeography of the rhizomatous American species of Muhlenbergia

   • Richard W. Pohl
   • Wm. W. Mitchell

   OriginalPaper 01 April 1965 Pages: 107 - 112

4. New species of Valeriana from Colombia, Ecuador, and Peru

   • Frederick G. Meyer

   OriginalPaper 01 April 1965 Pages: 112 - 120

5. Taxonomy of Trifolium: Five American species of section Lupinaster (Leguminosae)

   • John M. Gillett

   OriginalPaper 01 April 1965 Pages: 121 - 136

6. Chromosome numbers in American Trifolium (Leguminosae)

   • Theodoee Mosquin
   • John M. Gillett

   OriginalPaper 01 April 1965 Pages: 136 - 143

7. A taxonomic study of Polymnia (Compositae)

   • James R. Wells

   OriginalPaper 01 April 1965 Pages: 144 - 159

8. Taxonomic and evolutionary implications of lawn races in Prunella vulgaris (Labiatae)

   • Andrew P. Nelson

   OriginalPaper 01 April 1965 Pages: 160 - 174

9. Date of issue of Brittonia, vol. 17, no. 1

   Announcement 01 April 1965 Pages: 174 - 174

10. A study of variation in the Potamogeton capillaceus—diversifolius complex (Potamogetonaceae)

    • Edward J. Klekowski
    • Ernest O. Beal

    OriginalPaper 01 April 1965 Pages: 175 - 181

11. Asahinea, a new genus in the Parmeliaceae

    • William Louis Culberson
    • Chicita F. Culberson

    OriginalPaper 01 April 1965 Pages: 182 - 190

12. The Systematics Association

    Notices 01 April 1965 Pages: 190 - 190

13. Flora Neotropica

    Notices 01 April 1965 Pages: 191 - 191

14. Walter Conrad Muenscher, 1891–1963

    • Babette Brown Coleman

    OriginalPaper 01 April 1965 Pages: 193 - 201

15. Closing dates for research proposals, National Science Foundation

    Notices 01 April 1965 Pages: 201 - 201

16. Acacia robusta Burch. and Acacia clavigera E. Mey. in Natal, South Africa

    • Kathleen D. Gordon-Gray

    OriginalPaper 01 April 1965 Pages: 202 - 212

17. Arceuthobium in Mexico

    • Frank G. Hawksworth
    • Delbert Wiens

    OriginalPaper 01 April 1965 Pages: 213 - 238

18. A revision of Boisduvalia (Onagraceae)

    • Peter H. Raven
    • David M. Moore

    OriginalPaper 01 April 1965 Pages: 238 - 254

19. An enigmatic Phlox from Illinois

    • Donald A. Levin
    • Dale M. Smith

    OriginalPaper 01 April 1965 Pages: 254 - 266

20. Notes on the genus Govenia in Mexico (Orch daceae)

    • Robert L. Dressler

    OriginalPaper 01 April 1965 Pages: 266 - 277

21. Death of N. Y. Sandwith

    Notices 01 April 1965 Pages: 277 - 277

22. Redefinition of Bromus ciliatus and B. richardsonii in Alaska

    • W. W. Mitchell
    • A. C. Wilton

    OriginalPaper 01 April 1965 Pages: 278 - 284

23. A new Peruvian Ilex

    • Gabriel Edwin

    Announcement 01 April 1965 Pages: 284 - 285

24. Schmaltzia serotina as a part of Rhus trilobata

    • David L. Spellman
    • David B. Dunn

    OriginalPaper 01 April 1965 Pages: 286 - 288

25. Erratum to: Morphological and chemical evidence on the hybrid nature of bitter pecan, Carya X lecontei

    • Donald E. Stone
    • George A. Adrouny
    • Salpi Adrouny

    Erratum 01 April 1965 Pages: 288 - 288

26. News and notes

    News 01 April 1965 Pages: lii - lii