The genera Darwiniothamnus Harling, Lecocarpus Decaisne, and Macraea Hook. f. are endemic to the Galapagos Islands. Although wood anatomy of Lecocarpus has been considered by Carlquist (1958) and Eliasson (1971), the material available hitherto has been twigs rather than mature wood. The other two genera have not been studied with respect to wood anatomy.
