JasmÌnum, Jasmine. A few species of this genus are celebrated either for the Green-house or Rooms. J. odoratÍssimum, Azorian, has very sweet-scented yellow flowers, blooming from April to November. J. revolÙtum is the earliest flowering one, and of the same colour; it is apt to grow straggling, and should be close pruned as soon as done blooming, which will be about June. J. grandiflÒrum is frequently called Catalonian, and should be pruned early in spring to make it bloom well, especially old plants. J. officinÀle is a hardy climbing plant for arbours, walls, &c. There are several varieties of it, and it is reported there is a double one.