]> [author note: Herbarium and types: E, GL, GW, Hunterian Museum Glasgow] [collector note: Original collections: E, E-GL; British Isles: E, E-GL, GW, NMW (col. 1939); Canada (Man., N.B., N.S., Ont. & Que., col. 1949; Que. also col. 1959), Curacao (col. 1953) & Arizona (col. 1959): E, E-GL.] Botany Walton, John Walton, John J. Walton John Walton 1895 1971