Four new species of Eryngium (Umbelliferae) from Mexico Lincoln Constance OriginalPaper Pages: 118 - 127
Revision of the genus Ochthocosmus (Linaceae) Julian A. SteyermarkJames L. Luteyn OriginalPaper Pages: 128 - 143
Guar: Agronomy, Production, Industrial Use, and Nutrition Thomas A. Zanoin Book review Pages: 143 - 143
A new species of Townsendia (Asteraceae) from northern Arizona Leila M. ShultzArthur H. Holmgren OriginalPaper Pages: 144 - 147
A new species of Caulanthus (Cruciferae) from Nevada Reed C. RollinsPatricia K. Holmgren OriginalPaper Pages: 148 - 151
Flavonoid chemistry of Coreopsis grandiflora (Compositae) Daniel J. CrawfordEdwin B. Smith OriginalPaper Pages: 154 - 159
Draba streptobrachia (Brassicaceae), a new species from Colorado Robert A. Price OriginalPaper Pages: 160 - 169
The typification and identity of Salix eriocephala Michx. (Salicaceae) George W. Argus OriginalPaper Pages: 170 - 177
Chapmannia floridana Torrey & Gray (Fabaceae) Charles R. GunnEliane M. NormanJ. Stuart Lassetter OriginalPaper Pages: 178 - 185
Notes on neotropical Vaccinieae (Ericaceae). VIII. New species of Cavendishia from northwestern South America James L. Luteyn OriginalPaper Pages: 186 - 208
Stuessya (Asteraceae: Heliantheae), a new genus from southcentral Mexico B. L. TurnerFrances Davies OriginalPaper Pages: 209 - 212
Notes from the New York Botanical Garden Herbarium II. The Herbaria of Charles Warfield Trow and Albert T. Beals Eileen K. Schofield OriginalPaper Pages: 213 - 213
Studies on Colombian cryptogams. IX. Daltonia sfenestrellata (Musci: Daltoniaceae), a new species from Colombia Dana Griffin OriginalPaper Pages: 214 - 216
Notes on the genera Thrasya H.B.K. and Thrasyopsis Parodi (Paniceae: Gramineae) Alasdair G. Burman OriginalPaper Pages: 217 - 221
Tricharia vezdae (Ascomycetes: Asterothyriaceae), a new lichen species from the southeastern United States William R. Buck OriginalPaper Pages: 222 - 224
Dioon rzedowskii (Zamiaceae), a new species from Mexico Paolo De LucaAldo MorettiMario Vázquez Torres OriginalPaper Pages: 225 - 229
A classification of the New World species of Aster (Asteraceae) Almut G. Jones OriginalPaper Pages: 230 - 239
Data on chromosome numbers in Aster (Asteraceae), with comments on the status and relationships of certain North American species Almut G. Jones OriginalPaper Pages: 240 - 261
Malvaceous miscellany, including new species from Mexico and Brazil Paul A. Fryxell OriginalPaper Pages: 262 - 268
New combinations in crocicreas Fr. Emend. S. E. Carpenter (Discomycetes, Helotiales) Steven E. Carpenter OriginalPaper Pages: 269 - 271
