FIGURE 3 in A review of the cytotaxonomy of Kalanchoe (Crassulaceae subfam. Kalanchooideae) with reference to evolutionary trends in the genus

FIGURE 3. While based at Cornell University, Ithaca, U.S.A., Dr Charles H. ['Chas'] Uhl (28 May 1918, Schenectady, New York–29 August 2010, Jefferson, Georgia, U.S.A.) was a pioneering researcher on the cytology and cytogenetics of the family Crassulaceae, including on Kalanchoe. Photograph taken in the early-1990s at the then home of Uhl's daughter, Mary, in Edinburgh, Great Britain, by Ray Stephenson. Reproduced with permission and © of Ray Stephenson.