There is only one member of the pine family which can safely be recommended for house cultivation. This is the Norfolk Island pine (Araucaria excelsa), a plant familiar to all. The foliage is a bright grass-green and the branches are produced in regular whorls of five at short but regular intervals, making a very pretty and symmetrical plant. It is one of the most popular house plants and is the best formal plant for house decoration. The Norfolk Island pine will stand a great deal of neglect, so long as it is in a cool place and the soil around the roots is kept moist.