Of this celebrated plant Mr. Wm. Bull says: "A remarkable Arad introduced from the South Sea Islands; it has large shining dark green elliptic-oblong pinnatisect leaves, more or less oblique, and having numerous pellucid spots scattered along the region of the midrib. When the plants are small and young, the leaves are entire, but gradually develop, until they finally become pinnatisect. The large inflorescence resembles that of Monstera deliciosa.

Epipremnum Mirabile - "Tonga".

From this bold and ornamental stove Arad, a very valuable and important drug is prepared, known as 'Tonga, the specific for neuralgia.'"