USDA and National Cancer Institute (NCI) Plant Collections records, 1959-1980 | United States Department of Agriculture and National Cancer Institute (NCI) Plant Collection records
1959-1980
The USDA and National Cancer Institute (NCI) Plant Collections Records consist of 36 "active books." Each "active book" is a three-ring binder containing individual "active sheets," forms that were used for recording collection and antitumor activity data on plant species within specific geographic areas. The purpose of the "active sheets" was not to record data on antitumor activity, but to maintain a procurement status file on plants collected in approximately 40 geographic areas. Active sheets were filed alphabetically by genus and species name within the geographic book, and color-coded tabs were used to indicate the status of activity and positioned on each sheet in such a way as to indicated whether a recollection was needed or not needed. When many tabs pointed outward in an active book, it would signal a need for U.S. Department of Agriculture botanists to conduct plant exploration for recollections--species that were collected again because of a previous collection that was active.
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