The Live oak. (Quercus virens.) This fine species will not thrive north of Virginia. Its imperishable timber is the most valuable in our forests; and, at the south, it is a fine park tree, when cultivated, growing about 40 feet high, with, however, a rather wide and low head. The thick oval leaves are evergreen, and it is much to be regretted that this noble tree will not bear our northern winters.