Other concentrations include the Chilean species of the widespread genus Berberis, the usage of computer models in evaluating methods of phylogenetic analysis, and serving on a committee of botanists (including D.J. Pinkava) working on a new manual of the vascular plants of Arizona to replace the aging Arizona Flora by Kearney and Peebles (last updated in 1960).
John F. Kennedy | Pope John Paul II | Elton John | John | John Lennon | John Wayne | John McCain | John Kerry | John Cage | Donald Trump | Olivia Newton-John | John Williams | John Peel | John Adams | John Steinbeck | John Travolta | John Milton | John Zorn | John Marshall | John Howard | Donald Duck | John Singer Sargent | John Ruskin | Donald Rumsfeld | John Updike | John Maynard Keynes | John Coltrane | John Cleese | St. John's | John Waters |