The University of Massachusetts Herbarium (MASS) has eighty vascular plant specimens collected in Sapporo between 1876 and 1877. Sixty-six of the specimens were collected personally by William S. Clark, and fourteen were collected by David P. Penhallow. The specimens have been scanned, and the images are available in "Specimen Images" on this website. The nomenclature was reviewed and the specimens annotated by Dr. David Boufford, a Senior Research Scientist at Harvard University and a specialist in Japanese flora.
Selected images from the collections appear below. Click any thumbnail to see a full-sized version of the image and to read about the image. The full collections can be browsed from the Plants and Lichens menu in the left-hand column.