]> [author note: Herbarium and types: US; duplicate material at E, GH, ILL, K, LE, MO, WIS] [collector note: Alaska (mainly Aleutian Is., e.g. Attu Is., col. 1944-45): E, GH, K, LE, LIL, MO, US.] Botany Van Schaack, George Booth Van Schaack, George Booth G. B. Van Schaack Van Schaack George Booth Van Schaack 1903 1983