bryophytes
- Distribution of Bryophytes in Massachusetts. 1998-1999
- Distribution of bryophytes, nonvascular plants on tip-up mounds. 1995
- The dynamics of Sphagnum in forest and peatland communities in Southeastern Labrador, Canada. 1984
- Final Report to Massachusetts Natural Heritage and Endangered Species Program: Bryophyte Checklist of Massachusetts. 1994-1998
- Gradients of bryophytes in Black Gum Swamp. 1988
- Hammarmossen and Kräckelbäcken mire research, including science ms. 1987
- Harvard Forest Flora Survey. 2005-2008
- Moss habitat preference of Harvard Forest's tardigrades. 1996
- Relative contribution of aquatic bryophytes to ecosystem oxygen metabolism in three small streams in Massachusetts. 1995
- Research notes on bryophytes. 1993-1995
- Vegetation Surveys of Forest Inventory Plots: Communities of Concern in Central Massachusetts. Proposal to MNHESP (not funded). 1993