Moon Bell

The Moon Bells are a type of bell-shaped orange flowers native to the Earth's moon, which are large enough to cover the entire head of a Human, and have the ability to produce large amounts of oxygen.

Biology
Moon Bells are actually intelligent, as are most of the lunar plants, and will remain alive and healthy even many days after being removed from the ground. Although they're capable of moving around and rolling, they've been shown to move little on Earth; possibly because of the atmosphere, which isn't as rich in oxygen as that of the moon. They have glands shaped like bulbous knobs located at the base of their petals, connecting to the stem, which allow them to remain fresh and produce copious amounts of oxygen.

History
The Giant Lunar Moth brought some specimens of Moon Bells in its voyage from the moon to the Earth. They were later used by Dr. John Dolittle and his companions as natural oxygen tanks to allow them to breathe as they took a ride on the moth's back to explore the world of the moon.

Appearances

 * Doctor Dolittle's Garden, by Hugh Lofting (1927)
 * Doctor Dolittle in the Moon, by Hugh Lofting (1928)