The Bhotan Pine, P. excelsa, has blue-green leaves, 6 to 8 inches long, and cylindrical stalked cones of about equal length. It is hardy to the neighbourhood of Boston. P. longifolia is a tender species cultivated in California. Its leaves are pale green, 8 to 12 inches long, slender and pendulous. No more beautiful pine can be imagined than a young and vigorous Himalayan longleaf with the wind playing among its drooping leaf clusters.