FIGURE 1. Mahonia lancasteri. A. Habit. B. Leaf underside. C, D. Leaves of three different cultivated forms of M. bealei (left) and M. lancasteri (extreme right), adaxial (C) and abaxial views (D). E. Top of a main raceme showing bifurcations. F. Flower with some sepals removed. G. Stamen. H. Pistil. I. Infructescence. J. Young fruit showing immature seeds. K. Young plant with three simple racemes. L. Flowering raceme. M. Flowering raceme showing conspicuous bracts. N. O. Mature plant and inflorescences. P. Mature plant with inflorescences at bud stage. Q. Mahonia lancasteri, with Roy Lancaster (left) and Mikinori Ogisu in Lezhi county, Sichuan, China (2012). Scale bars represent 10 cm (A, B, C, D, K, N, O, P), 10 mm (A, B, C, D, M) or 5 mm (G, J, H). All photos by O. Colin except Q by John Massey.

Published as part of Colin, Olivier, Hinsinger, Damien Daniel & Strijk, Joeri Sergej, 2021, Mahonia lancasteri (Berberidaceae), a new species originating from Sichuan (China) described from cultivation, pp. 45-54 in Phytotaxa 482 (1) on page 47, DOI: 10.11646/phytotaxa.482.1.5, http://zenodo.org/record/5418027