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Arnold Arboretum

Grant Expands Access

Accession Card

As part of a grant from the Institute of Museum and Library Services, all historic accession cards, from Abeliophyllum to Zizyphus, have been reviewed and incorporated into BG-BASE, resulting in almost 70,000 new and over 100,000 edited records. In addition, 1,700 map documents (ca. 1937–1988) representing 1,982 locations have been digitized and georeferenced.

Legacy Collection Statistics

As of March 2014, the legacy (dead) collections comprised 64,969 accessions representing 17,441 taxa. Of these, 63,716 individual plants (including nursery holdings) belonging to 43,005 accessions representing 13,620 taxa were inventoried within the living collections before perishing. Taken together, the collections are considered to be one of the largest (Table 1) and best documented (Table 2) woody plant collections in North America and the world. Many of these accessions or accession lineages are of historical and botanical importance, representing the original North American introductions of Eastern Asian plants collected by Arboretum staff and affiliates such as Charles Sprague Sargent, Ernest H. Wilson [pdf], John G. Jack [pdf], Joseph Rock [pdf], and William Purdom [pdf].

Search our legacy (dead), living, and herbaria collection inventories for plants of interest.

Table 1. Taxonomic profile of the Legacy Collections of the Arnold Arboretum.a
RANK NUMBER
Families  213
Genera  1,122
Species  10,444
Subspecies  183
Varieties  1,482
Formae  270
Cultivars  6,174
Infraspecific Hybrids  1,317
Intergeneric Hybrids  92

aNumbers for infraspecific ranks correspond only to those accessions where rank is known.

Table 2. Provenance of the Legacy Accessions of the Arnold Arboretum.
PROVENANCE TOTAL NUMBER PERCENT OF TOTAL
Wild
Direct  13,246  20
Indirecta  3,593  6
Garden  17,739  27
Uncertainb  30,391  47

aFrom a cultivated plant of known (indirect) wild origin.
bIncludes 1,131 existing or spontaneous accessions whose provenance cannot be determined.

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