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Pinus merkusii
''Pinus merkusii'', the Merkus pine or Sumatran pine, is a pine native to the Malesia region of southeast Asia, mainly in Indonesia in the mountains of northern Sumatra, and with two outlying populations in central Sumatra on Mount Kerinci and Mount Talang, and in the Philippines on Mindoro and in the Zambales Mountains on western Luzon.
The population in central Sumatra, between 1° 40' and 2° 06' S latitude, is the only natural occurrence of any member of the Pinaceae south of the Equator. It generally occurs at moderate altitudes, mostly , but occasionally as low as and up to .
==Description==
''Pinus merkusii'' is a medium-sized to large tree, reaching tall and with a trunk diameter of up to . The bark is orange-red, thick and deeply fissured at the base of the trunk, and thin and flaky in the upper crown. The leaves ("needles") are in pairs, very slender, 15–20 cm long and less than 1 mm thick, green to yellowish green.
The cones are narrow conic, 5–8 cm long and 2 cm broad at the base when closed, green at first, ripening glossy red-brown. They open to 4–5 cm broad at maturity to release the seeds. The seeds are 5–6 mm long, with a 15–20 mm wing, and are wind-dispersed.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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