1. Systematics of Tillandsia subgenus Pseudalcantarea (Bromeliaceae)

   • Reed S. Beaman
   • Walter S. Judd

   Articles Pages: 1 - 19

2. Tidings of Menispermaceae from interior French Guiana and from the Brazilian state of Bahia

   • Rupert C. Barneby

   Articles Pages: 20 - 25

3. Fissidens saülensis (Fissidentaceae), a new species from central French Guiana

   • Ronald A. Pursell
   • William R. Buck

   Articles Pages: 26 - 28

4. Studies in the pendulous-flowered species of Rustia (Rubiaceae, Condamineeae), including a new species, Rustia schunkeana

   • Piero G. Delprete

   Articles Pages: 29 - 34

5. Annoucements

   Announcement Pages: 34 - 34

6. Notes on calycophyllous Rubiaceae. Part I. Morphological comparisons of the genera Chimarrhis, Bathysa, and Calycophyllum, with new combinations and a new species, Chimarrhis gentryana

   • Piero G. Delprete

   Articles Pages: 35 - 44

7. New species of Rhodostemonodaphne (Lauraceae) from northeastern South America

   • Santiago Madriñán

   Articles Pages: 45 - 66

8. Midribs of cycad pinnae

   • Dennis Wm. Stevenson
   • Knut J. Norstog
   • Dian V. Molsen

   Articles Pages: 67 - 74

9. Two new species of Grindelia (Astereae, Asteraceae) from Uruguay

   • Adriana Bartoli
   • Roberto D. Tortosa
   • Eduardo Marchesi

   Articles Pages: 75 - 78

10. Novelties in Asteraceae from southern Mexico

    • José L. Panero
    • José L. Villaseñor

    Articles Pages: 79 - 90

11. Books received

    Announcement Pages: 90 - 90

12. Two overlooked species of Guzmania (Bromeliaceae) of the species-complex Massangea from Central America

    • Harry E. Luther
    • W. John Kress

    Articles Pages: 91 - 95

13. A new unispiculate species of Bulbostylis (Cyperaceae) from Brazil

    • Mark T. Strong

    Articles Pages: 96 - 99

14. The Lawrence Memorial Award

    Annoucements Pages: 99 - 99

15. Two new species of Dioscorea (Dioscoreaceae) from Peru

    • Oswaldo Téllez-Valdés

    Articles Pages: 100 - 103

16. A new species of Carex section Ovales (Cyperaceae) occurring in the Ozark Mountain region

    • Paul E. Rothrock
    • A. A. Reznicek

    Articles Pages: 104 - 110

17. Three new species of Cobaea (Polemoniaceae)

    • L. Alan Prather

    Articles Pages: 111 - 119

18. A short history of the index to American Botanical Literature

    • William R. Buck

    Articles Pages: 120 - 123

19. Index to American Literature

    • William R. Buck
    • Scott V. Heald
    • Thomas A. Zanoni

    Announcement Pages: 124 - 160

20. LATMOSS. A catalogue of neotropical mosses. Claudio Delgadillo M., Bernardina Bello & Angeles Cardenas S.

    • Steven P. Churchill

    Book Review Pages: 160 - 160