1935 supplement to our green begonia list with special reference to novelties, tuberous, additional cultural notes - Rosecroft Begonia Gardens.; Robinson, Alfred D.; Robinson, Annie C.; Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Point Loma, California, Rosecroft Begonia Gardens, [1935], 1935)
https://www.biodiversitylibrary.org/bibliography/163899
Keywords: Begonias|California|Catalogs|Loma; Point|Nursery stock|Varieties|