The identification of Berberis aquifolium and Berberis repens,
Piper, Charles V. 1867-1926.
The identification of Berberis aquifolium and Berberis repens, by Charles V. Piper. - Washington, Govt. print. off., 1922. - v, 437-451, [1] p. pl. 24-26 on 2 1. 25 cm. - Smithsonian institution. United States National museum. Contributions from the United States National herbarium. v. 20, pt.11 .
"Bulletin of the United States National museum."
agr22000153
Barberries.
QK1 / .U5 vol. 20, pt. 11
The identification of Berberis aquifolium and Berberis repens, by Charles V. Piper. - Washington, Govt. print. off., 1922. - v, 437-451, [1] p. pl. 24-26 on 2 1. 25 cm. - Smithsonian institution. United States National museum. Contributions from the United States National herbarium. v. 20, pt.11 .
"Bulletin of the United States National museum."
agr22000153
Barberries.
QK1 / .U5 vol. 20, pt. 11