Plant Posters from Last Century

This beautiful collection is in the basement of the Brooklyn Botanic Gardens. They date from 1930.

 

 

890641

Every plant at the BBG has an “accession number, which has information about the year the plant arrived at the garden and what number plant it was that year (e.g., the 1st to arrive, the 17th, the 641st). So which plant is 890641? The Large-Flowered Magnolia or the Climbing Hemp Vine?