• Systematics and Taxonomy of Bryophytes

• Schistidium in Europe, North-, Central- and South America (more)
• Mosses and hepatics in the Neotropics (more)
• Molecular Systematics of Hypopterygiaceae (more)

• Ecology of Bryophytes

• Population Ecology of Bryophytes (more)
• Reproductive Biology and Ecology of Bryophytes (more)
• Bryopyhte vegetation (more)

• Distribution of Bryophytes

• In Costa Rica (more)
• In Central- and South America (more)
• In Central Europe (more)

• Tropical montane rainforests

• upper montane oak forests in Costa Rica (more)

• Paramo vegetation

• bryophyte vegetation in costarican paramos (more)