American Horticultural Society, October 1952, pg. 237-259; Concerning Rex Begonia, by B. Y. Morrison The following descriptions are recorded from observation notes made of the living collection during 1951-1952: Lad-X. Medium size, moderate curl. Small dark olive-green center that follows the major veins, large metallic silver zone that breaks into large blotches over the pale green margins that show some brown tones.
