Published in Contributions From The University of Michigan Herbarium, in 1980, in volume 14, pages 11-15
Published in Contributions From The University of Michigan Herbarium, in 1980, in volume 14, pages 17-23
Published in Contributions From The University of Michigan Herbarium, in 1980, in volume 14, pages 25-52
Published in Contributions From The University of Michigan Herbarium, in 1980, in volume 14, pages 53-56
Published in Contributions From The University of Michigan Herbarium, in 1980, in volume 14, pages 57-60
Published in Contributions from the University of Michigan Herbarium, in 1980, in volume 14, pages 61-67
Published in Contributions From The University of Michigan Herbarium, in 1980, in volume 14, pages 69-73
Published in Contributions from the University of Michigan Herbarium, in 1980, in volume 14, pages 75-82
Published in Contributions From The University of Michigan Herbarium, in 1980, in volume 14, pages 83-84
Published in Contributions from the University of Michigan Herbarium, in 1980, in volume 14, pages 85-97
Published in Contributions From The University of Michigan Herbarium, in 1980, in volume 14, pages 141-152
Published in Contributions From The University of Michigan Herbarium, in 1980, in volume 14, pages 153-203