Botany
Plant science
Floras of the Serpentinite Formations in Eastern North America, with Descriptions of Geomorphology and Mineralogy of the Formations
Anonymous (not verified)
Spatial and temporal patterns of occurrence for selected invertebrate lineages and their association with vascular plants in barrens and related habitat types in Pennsylvania
Anonymous (not verified)
Inventory of historical and extant, native, persistent, unplanted grasslands and meadows in Pennsylvania
Anonymous (not verified)
Rare species form — Gentianopsis crinita, Robert E. Lee Park, Maryland, 13 October 1988
Anonymous (not verified)
Natural community survey form — Robert E. Lee Park, Maryland, 7 June 1985
Anonymous (not verified)
Vascular plant species in Nottingham County Park
Anonymous (not verified)
Vegetation response to prescribed burning on a serpentine barren (Pilot Barrens, Maryland): preliminary results
Anonymous (not verified)
Plants identified on 73 visits to 32 serpentine sites in Pennsylvania and Delaware, 1982-83
Anonymous (not verified)
Floral inventory of the Goat Hill serpentine barren
Anonymous (not verified)