]> [author note: Herbarium and types: NY (35,000); additional specimens at A, B (mostly destroyed), BUF, C, CS, E, GH, HBG, K, KANU, KSC, L, LE, MIN, MO, MONT, MONTU, NEB, NMC, NY, NYS, RM, US] Botany Rydberg, Per Axel Rydberg, Per Axel P. A. Rydberg Rydb. Rydberg Per Axel Rydberg 1860 1931