The leaves of robusta are much thinner than those of liberica, though not as thin as those of arabica. The tree, as a whole, is a very hardy variety and even bears blossoms when it is less than a year old. It blossoms throughout the entire year, the flowers having six-parted corollas. The drupes are smaller than those of liberica; but are much thinner skinned, so that the coffee bean is actually not any smaller. The drupes mature in ten months. Although the plants bear as early as the first year, the yield for the first two years is of no account; but by the fourth year the crop is large.
Robusta Coffee in Flower, Preanger, Java
Coffee Estate in the Luquillo Mountains, Porto Rico
Japanese Laborers Picking Coffee on Kona Side, Island of Hawaii
COFFEE UNDER THE STARS AND STRIPES