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The Hamamelidaceae has genera with named cultivars, but only one cultivar registration authority for the genus Hamamelis.
This is an example from Denver Botanic Gardens of a Material Transfer Agreement:
Living Collections Access and Distribution Form.
The U.S. national heritage of approximately one billion biodiversity specimens, once
digitized, can be linked to emerging digital data sources to form an information-rich network
Natural history museums are unique spaces for interdisciplinary research and for educational
innovation. Through extensive exhibits and public programming and by hosting rich
These best practices represent a compilation of previous CPC guidelines with updated
The first two decades of the twenty-first century have seen a rapid rise in the mobilization of digital biodiversity data.
Functional traits are increasingly used to understand the ecology of plants and to predict their responses to global changes. Unfortunately, trait data are unavailable for the majority of plant species.
Ulmus americana (American elm) was an important urban tree in North America prior to the introduction of the Dutch elm disease pathogen in 1930. Subsequently, urban and community forests were devastated by the loss of large canopies.
Access and benefit-sharing (ABS) refers to the way in which genetic resources
may be accessed, and how the benefits that result from their use are shared
between the people or countries using the resources (users) and the people or
Plant breeders require genetic diversity to develop cultivars that are productive, nutritious,