This section is from the book "The Gardener's Monthly And Horticulturist V20", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
W. N. M., Oswego, N. Y., writes: " I enclose you a rough sketch of a strange freak in a Begonia Rex (var. Queen Victoria). Has the thing ever come under your notice before - two perfect leaves on one stalk?"
Three leaves on the plant, and the central one erect, with two large leaf-blades from the top of the strong leaf-stalk. It looks as if the stalk may have been intended for a flower-stem, and concluded finally, as one might say, to bear twin leaves instead. Some such experiences in plants are not uncommon, and are in accord with well-known morphological laws.