As of July 2012, the Cultivated Herbarium of the Arnold Arboretum (A) comprised 133,406 specimens belonging to 241 families representing 2,862 genera. This collection contains vouchers collected from non-Arnold Arboretum (Table 1) sources, as well as accessions that grow or once grew in the living collections.
Currently, 46,672 voucher specimens (35% of total) document the historic as well as extant living collections. And, of 10,257 extant accessions in the living collection, half (5,187) are supported by at least 1 voucher specimen. Approximately five hundred vouchers are added to the collection annually with a current focus placed on NAPCC genera (Table 2).
Management of the collection is guided by the Cultivated Herbarium Collections Policy [pdf].
Search the Cultivated Herbarium inventory for specimens of interest.
| Table 1. Non-Arnold Arboretum Living Collection Specimens (n=86,734, or 65% of total) housed in the Cultivated Herbarium of the Arnold Arboretum (A) | ||
| Ten Largest Familiesa (42,224 specimens, 49% of total) | Ten Largest Herbaceous Familiesa (8,298 specimens, 10% of total) | Ten Largest Genera (20,311 specimens, 23% of total) |
|---|---|---|
| Rosaceae 13,405 | Compositae 2,263 | Salix 3,483 |
| Leguminosae 5,114 | Labiatae 1,534 | Prunus 2,677 |
| Salicaceae 3,884 | Liliaceae 1,351 | Acer 2,577 |
| Ericaceae 3,672 | Gramineae 676 | Rosa 2,323 |
| Caprifoliceae 3,489 | Scrophulariaceae 634 | Rhododendron 2,209 |
| Oleaceae 2,874 | Pteridophyta 409 | Quercus 1,853 |
| Saxifragaceae 2,687 | Cruciferae 396 | Viburnum 1,363 |
| Aceraceae 2,583 | Polygonaceae 378 | Crataegus 1,319 |
| Compositae 2,263 | Geraniaceae 355 | Lonicera 1,302 |
| Betulaceae 2,253 | Umbelliferae 302 | Ilex 1,205 |
| Table 2. NAPCC Genera Represented in the Cultivated Herbarium of the Arnold Arboretum (A). | ||
| Genera | Number of AA Specimens | Number of Non-AA Specimens |
|---|---|---|
| Acer | 408 | 2,577 |
| Carya | 103 | 178 |
| Fagus | 106 | 227 |
| Stewartia | 68 | 119 |
| Syringa | 115 | 700 |
| Tsuga | 74 | 122 |
a Some traditional family names (e.g., Leguminosae) are still used for organizational purposes