Begonia palmeri S. Watson Begonia palmeri S. Watson in Proc. Amer. Acad. Arts 21: 429. 1886 sec. Burt-Utley 2014=Begonia macdanielsii Standl., Publ. Field Mus. Nat. Hist., Bot. Ser. 17: 266. 1937 syn. sec. Burt-Utley & McVaugh 2001