North American botanical gardens and arboreta group
The Plant Collections Network (PCN) (formerly the North American Plant Collections Consortium) is a group of North American botanical gardens and arboreta that coordinates a continent-wide approach to plant germplasm preservation, and promotes excellence in plant collections management.[1] The program is administered by the American Public Gardens Association from its headquarters in Kennett Square, Pennsylvania, in collaboration with the USDA Agricultural Research Service.
Current objectives of the Plant Collections Network are to:
Build Awareness – of both Plant Collections Network & value of documented plant collections
Promote Standards of Excellence – in plant collections management; and
Expand Diversity of Collections – target existing collections, identify gaps for future collections
The network is intended to represent woody and herbaceous ornamentals, both native and exotic. The main objective for each network member is to assemble a comprehensive group of plants for a particular taxon, collecting plants from different populations throughout their natural range that are both taxonomically and genetically distinct.
Participating institutions maximize the potential value of their collections by making efficient use of available resources through a coordinated continent-wide approach, and strengthening their own collections through collaboration with others.
Criteria for participation in the Plant Collections Network are:
American Public Gardens Association membership
Active collections management program including plant records database, accession labels, maps
Long-term commitment to maintain collection
Endorsement of governing body
Current collection has 50% or more of ultimate collection scope
Collections policy
Curator for collection; and
Access to collection for research, evaluation and plant introduction
The accreditation process includes submitting a written application for each collection to be considered, then a peer site reviewer conducts an onsite assessment and submits a report with recommendations.[2]
As of March 2016, Network participants and Nationally Accredited Plant Collections included:[3]
Arizona-Sonora Desert Museum
Agavaceae – Sonoran Desert; 65 taxa
Arboretum at Arizona State University
Phoenix; 300 taxa, 40 varieties
Arnold Arboretum of Harvard University
Acer; multi-site
Carya; 16 taxa, 11 spp
Fagus; 26 taxa
Stewartia; 11 taxa
Syringa; 238 taxa, 20 spp
Tsuga; 72 taxa, 7 spp
Atlanta Botanical Garden
Acer; 82 taxa
Magnolia; multi-site
Sarracenia; 78 taxa
Bartlett Tree Research Laboratory and Arboretum
Acer; multi-site
Hamamelis; 161 taxa
Magnolia; multi-site
Quercus; multi-site
Ulmus; 62 taxa
Betty Ford Alpine Gardens
Alpine Plants of Colorado; 87 taxa
Boyce Thompson Arboretum
Fabaceae – Desert Legumes; 1454 taxa as seeds, 206 taxa as plants
Quercus; multi-site
University of British Columbia Botanical Garden
Acer; multi-site
Magnolia; multi-site
University of California Botanical Garden at Berkeley
Cycads; multi-site
Ferns; 360 taxa, with 500+ accessions
Magnolia; multi-site
Quercus; multi-site
Cheekwood Botanical Garden
Cornus; 61 taxa
Chicago Botanic Garden
Geranium; 102 taxa
Quercus; 48 taxa
Spiraea; 52 taxa
Cornell Plantations
Acer; multi-site
Quercus; multi-site
Donald E. Davis Arboretum
Quercus; multi-site
University of California Davis Arboretum
Quercus; multi-site
Dawes Arboretum
Acer; multi-site
Aesculus; 59 taxa
Hamamelis; 75 taxa
Metasequoia; 9 taxa, with 47 accessions of documented wild-origin, 8 cultivars
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