The MBLWHOI Library Herbarium (SPWH), formerly the Marine Biological Laboratory Herbarium, documents the flora of Cape Cod, Massachusetts, and adjacent islands. The collection, dating back to the 1870s, consists of more than 9,000 specimens.

The MBLWHOI Library Herbarium is housed at the Data Library & Archives, McLean Laboratory, Woods Hole Oceanographic Institution Quissett Campus. Visits to the Herbarium are available by appointment only. Contact the Herbarium at 508-289-4948

Curator: Pamela T. Polloni, ppolloni@whoi.edu

Members of the Botanical Club of Cape Cod and the Islands (BCCCI) contribute to the collections.

The MBLWHOI Library is cataloging and digitizing the entire  collection. This Digital Herbarium is a fully searchable database of specimen images and related data, serving as an online compendium of the marine, freshwater and terrestrial flora of Cape Cod and the Islands.