]> [author note: MO; director Missouri Bot. Gard., 1972-; Onagraceae] [collector note: Western North America: DS, Arizona: NY, California: C, CAS, DAO, DPU, JEPS, NMW, NY, RSA, US, Costa Rica: CR, MO, Nevada: DAO (col. 1953, 1964), Oregon: CAS, JEPS, United States: GB (col. 1950-57); important collection: MO] Botany Raven, Peter Hamilton Raven, Peter Hamilton P. H. Raven Peter Hamilton Raven Raven, P. H. Raven, Peter H. 1936