-
New taxa and nomenclatural changes in the North American fern flora
Vol 19, Page 31
-
New species of Hawaiian pteridophytes
Vol 19, Page 63
-
Chromosomes of North American grapeferns and moonworts (Ophioglossaceae: Botrychium)
Vol 19, Page 83
-
Verbesina pellucida (Asteraceae Heliantheae), a new species from the Isthmus of Tehuantepec, Oaxaca, Mexico
Vol 19, Page 93
-
Revision of Carex section Ovales (Cyperaceae) in Mexico
Vol 19, Page 97
-
Carex tovarensis (Cyperaceae), a new species fron Venezuela
Vol 19, Page 137
-
Taxonomic status, ecology, and distribution of Carex hyalina (Cyperaceae)
Vol 19, Page 141
-
Infrageneric nomenclature: corrections and additions in the Caryophyllaceae
Vol 19, Page 149
-
New species of Asteraceae Heliantheae from Latin America
Vol 19, Page 171
-
Carex brysonii and Carex godfreyi, new species of Carex Section Griseae (Cyperaceae) from the southeastern United States
Vol 19, Page 195
-
EUPHORBIAE NOVO-GALICIANAE REVISAE
Vol 19, Page 207
-
THE SPECIES OF GIANT SENECIO (COMPOSITAE) AND GIANT LOBELIA (LOBELIACEAE) IN EASTERN AFRICA
Vol 19, Page 241
-
A new species of Hornschuchia (Annonaceae) from Atlantic Brazil, with comments on the circumscription of the genus Trigynaea
Vol 19, Page 259
-
New and reconsidered Mexican Acanthaceae. V
Vol 19, Page 271
-
The gymnosperms of Mount Kinabalu
Vol 19, Page 307
-
Chromosome numbers of neotropical Malpighiaceae
Vol 19, Page 341
-
Notes on neotropical Malpighiaceae IV
Vol 19, Page 355
-
The identities of the sericeous-leaved species of Stigmaphyllon (Malpighiaceae) in the Amazon region
Vol 19, Page 393
-
Novelties in Stigmaphyllon (Malpighiaceae) from South America
Vol 19, Page 415