Begonia tetrandra Irmsch ,

Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 74 (4): 626 (Irmscher 1949).

– Type: ECUADOR – Prov. Tunguahara • Valley of the Pastaza River , between Baños and Cashurco, 8 hours east of Baños; 1300–1800 m a.s.l.; 25 Sep. 1923; A.S. Hitchcock 21889; syntype: US [US00221970]). – PERU • Lobb s.n.; syntype: W [n.v.].

Brako & Zarucchi (1993: 195).

Notes

Brako & Zarucchi (1993) included B. tetrandra Irmsch. in the latest checklist of Peruvian Begonia based upon Lobb s.n. (W), a syntype of the name. We have not seen this specimen so, following Smith & Wasshausen (1986), treat the species as endemic to Ecuador and exclude the name from our treatment.