Chromosome numbers are reported for 57 species of Vernonieae from North and South America and from Africa. The genera included are Bothriocline, Centratherum, Elephantopus, Erlangea, Ethulia, ...

Slotted behind the car’s halo and set deep within its tub, F1 drivers have more than two dozen buttons, knobs, rotary dials, menus, displays, and LEDs to interact with on the steering wheel. Again, ...

About 1.5 million people teach on college campuses in the United States, and nearly 4 million teachers work in its public elementary and secondary schools. More than 15 million undergraduates attend U ...