Published in Contributions From The University of Michigan Herbarium, in 1987, in volume 16, pages 1-48

Published in Contributions From The University of Michigan Herbarium, in 1987, in volume 16, pages 49-53

Published in Contributions From The University of Michigan Herbarium, in 1987, in volume 16, pages 55-108

Published in Contributions From The University of Michigan Herbarium, in 1987, in volume 16, pages 109-127

Published in Contributions From The University of Michigan Herbarium, in 1987, in volume 16, pages 129-133

Published in Contributions From The University of Michigan Herbarium, in 1987, in volume 16, pages 135-140

Published in Contributions From The University of Michigan Herbarium, in 1987, in volume 16, pages 141-143

Published in Contributions From The University of Michigan Herbarium, in 1987, in volume 16, pages 189-200

Published in Contributions From The University of Michigan Herbarium, in 1987, in volume 16, pages 201-210