The gemstone Whitby jet is fossilized wood from tree species similar to "Araucaria araucaria". Araucaria cunninghamii is a species of "Araucaria" known as hoop pine. On Norfolk Island, it lives in forests of Norfolk Island pine ("Araucaria heterophylla"). A Cook's pine tree ("Araucaria columnaris") flanks the statue. In the south, the Araucaria pine forest grows under temperate conditions. Despite the predominance of "Araucaria angustifolia", other species of arboreal species are found. Cook gave the island its name after seeing the tall native pines ("Araucaria columnaris"). The plateau is home to the subtropical Araucaria moist forests. Others such as "Araucaria columnaris" have leaves that are awl-shaped. Pharmacological reports on genus Araucaria are anti-ulcer, antiviral, neuro-protective, anti-depressant and anti-coagulant. In southern Brazil, their main source of energy is the nut of "Araucaria angustifolia". There are 13 endemic species of "Araucaria", including "A. rulei" and "A. columnaris". They were probably host-specific to members of the genus "Araucaria" since the Mesozoic. Both belong to the section "Araucaria" of the genus.