William (Ned) Friedman introduces two natural mutants found in the Arboretum’s living collection in Arnoldia. One, Cercis canadensis, accession 10-68-B, is an eastern redbud that has developed a spontaneous mutation in flower color on a single branch. Another natural mutation is observed in Kalmia latifolia, accession 2458. The petals of this flower have been converted to stamens complete with pollen production. pdf »