S. R. Gradstein

• Lejeuneaceae
• Studies on Colombian cryptogams
• The tropical mountain forest
• A Catalogue of the bryophytes of the Guianas
• A Key to the Hepaticae and Anthocerotae of Puerto Rico and the Virgin Islands
• A revision of the genus Stictolejeunea (Spruce) Schiffn
• A revision of the genus Symbiezidium Trevis
• A taxonomic monograph of the genus Acrolejeunea (Hepaticae)
• Biodiversitätsforschung
• Botanical explorations in Guyana, 1985
• Bryophyta neotropica exsiccata
• Bryophytes