The Mexican White Pine (P. Ayacahuite), a near relative of our Northern white pine, and resembling the Himalayan species in the pendulous leaf habit, is unknown to any but a few specialists. But it is sure to be recognised and widely planted where it is hardy. The tree is graceful and symmetrical, its whorls of slender branches held well apart and horizontal. The droop is in the leaves themselves, pale green, bluish and 4 to 6 inches long. The handsome cones are 9 to 15 inches long, tapering, often curved, and brownish yellow. Though not counted hardy in the North, this Mexican species grows behind the protecting Scotch pines on Mr. Dana's place, Dosoris, on Long Island.