The slender tree equals the longleaf in height and bears its dark green leaves in clusters of twos and threes, scattered on short branches that form a narrow loose head. The pale green, stout branchlets are lightened by the silvery sheaths of the young leaves (see illustrations, [pages 214-215]) which are short only in comparison with the companion species, the longleaf. The cones are abundant; the seeds numerous, winged for flight, retaining their vitality longer than most pine seeds. The tree is less sensitive to injuries and has the propensity, unusual in the pine family, of throwing up suckers from the roots. In open competition, this pine will hold its own against the invasion of other trees, if only allowed to do so. Much of the deforested territory, let alone, will cover itself with a ripe crop of shortleaf pine lumber in a hundred years.
The Cuban Pine
P. Caribaea, Morelet
The Cuban pine stands third in the triumvirate of lumber pines of the South. This is the "swamp pine" or "slash pine," found in the coast regions from South Carolina throughout Florida, and along the Gulf Coast to the Pearl River in Louisiana. It is a beautiful pine—tall, with dense crown of dark green leaves, in twos and threes, eight to twelve inches long, falling at the end of their second season, before they lose their brightness. A large part of the turpentine of commerce has been derived from these coast forests, as well as lumber, which takes its place in the Northern market with the longleaf and the shortleaf.
Natural reforestation has taken place in the Southeast, and a large part of the turpentine exported by Georgia and South Carolina to-day, is from second-growth Cuban pine, on land from which the lumber companies have stripped the virgin growth.
The Loblolly Pine
P. Taeda, Linn.
The loblolly or old field pine chooses land generally sterile and otherwise worthless. It grows in swamps along the Atlantic coast, from New Jersey through the Carolinas, and follows the Gulf from Tampa Bay into Texas. Inland, it is found from the Carolinas to Arkansas and Louisiana. It has remarkable vitality of seed and seedlings, which do equally well on sterile uplands, on water-soaked ground, or where soil is light and sandy. It is very apt to take possession of land once cleared for agriculture. The young trees crowd together and grow with tremendous vigor the first years of their lives, successfully holding large tracts in pure forests. The limbs are short, thick, matted, forming a compact rounded head; the leaves slender, stiff, twisted, pale-green, six to nine inches long, in groups of threes. The wood is rich in resin, but differs greatly in quality with age and the fertility of the soil. "Rosemary pine" was heavy, hard, close-grained, with a thin rim of soft sap-wood. This famous lumber, preferred by shipbuilders of many countries for masts, grew in the virgin forest of the Carolinas. Giants were cut in the rich marsh lands back from the Sounds. But the small loblolly pine, grown on sandy soil, is but third-grade lumber, the sap-wood three times as thick as the heart-wood and exceedingly coarse-grained. One merit has recently been discovered in this lumber, that formerly blackened before it was seasoned, by the invasion of a fungous growth. It quickly absorbs creosote, which renders it immune from decay. It is used in the building of docks, cars, boats, and locally in house-building. Its wood makes a sharp, quick heat when dried. It is used in bakeries and brick kilns, and in charcoal-burning.
The Pitch Pine
P. rigida, Mill.