Ribosomal DNA distribution in somatic chromosomes of Stangeria eriopus (Stangeriaceae, Cycadales) and molecular-cytotaxonomic relationships to some other cycad genera Goro KokubugataKen D. HillKatsuhiko Kondo Articles Pages: 1 - 5
A new species of Castilleja (Orobanchaceae) from the central Sierra Madre Occidental, Mexico, and an annotated key to the Castilleja species of that region J. Mark Egger Articles Pages: 6 - 12
Guide to standard floras of the World. 2nd Ed. By David G. Frodin James L. Luteyn Book Review Pages: 12 - 12
Korupodendron songweanum, a new genus and species of Vochysiaceae from West-Central Africa Amy LittMartin Cheek Articles Pages: 13 - 17
A new series and three new species of Passiflora subgenus Astrophea from the Guianas Christian Feuillet Articles Pages: 18 - 29
Aristolochia gorgona (Aristolochiaceae), a new species with giant flowers from Costa Rica and Panama Mario A. Blanco Articles Pages: 30 - 39
Relationships, circumscription, and biogeography of Arcytophyllum (Rubiaceae) based on evidence from cpDNA Lennart AnderssonJohan H. E. RovaFernando Alzate Guarin Articles Pages: 40 - 49
Two new species of Haplopappus (Astereae, Asteraceae) from Mendoza, Argentina Roberto D. TortosaAdriana Bartoli Articles Pages: 50 - 53
A new species of Passiflora (Passifloraceae) from Amazonian Brazil Armando Carlos Cervi Articles Pages: 54 - 56
The occurrence and morphology of Adiantum X variopinnatum (Pteridaceae) Robbin C. MoranJames E. Watkins Articles Pages: 57 - 60
A world synopsis of the genusGrimmia (Musci, Grimmiaceae). By Jesus Muñoz and Francisco Pando Roxanne I. Hastings Book Review Pages: 61 - 62