Whole issue numbering discontinued with no. 10 (Apr. 1997); vol. numbering begins in Aug. 1997 with v. 2.
Formed by the union of: Occasional papers of the Farlow Herbarium of Cryptogamic Botany; Botanical Museum leaflets, Harvard University; and: Contributions from the Gray Herbarium of Harvard University.
With no. 8 (May 1996), incorporates: Journal of the Arnold Arboretum, published 1919-1990; contrary to statement in no. 8, did not also absorb: Journal of the Arnold Arboretum. Supplementary series.
Description based on: No. 1 (May 1989); title from PDF cover (JSTOR, viewed June 14, 2013).
Latest issue consulted: Vol. 13, Issue 1 (June 2008) (BioOne, viewed on July 31, 2008).