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Coulter pine (Pinus coulteri), or big-cone pine, is a conifer in the genus Pinus of the family Pinaceae.Coulter pine is an evergreen conifer that lives up to 100 years. [2] It is a native of the coastal mountains of Southern California in the United States and northern Baja California in Mexico, occurring in mediterranean climates, where winter rains are infrequent and summers are dry with ...
Methuselah is a 4,856-year-old [1] Great Basin bristlecone pine (Pinus longaeva) tree growing high in the White Mountains of Inyo County in eastern California. [2] [3] It is recognized as the non-clonal tree with the greatest confirmed age in the world. [4]
Pinus lambertiana (commonly known as the sugar pine or sugar cone pine) is the tallest and most massive pine tree and has the longest cones of any conifer.It is native to coastal and inland mountain areas along the Pacific coast of North America, as far north as Oregon and as far south as Baja California in Mexico.
Many scientists are curious as to why this tree is able to live so long. In one study, they discovered that Pinus longaeva has higher levels of telomerase activity, which further slows or prevents the attrition rate of telomeres. [2] This potentially contributes to the extended life of the bristlecone pine.
The Methuselah Grove in the Ancient Bristlecone Pine Forest is the location of the "Methuselah", a Great Basin bristlecone pine that is 4,856 years old. [7] It is considered to be the world's oldest known and confirmed living non-clonal organism. It was temporarily superseded by a 5,062 year old bristlecone pine discovered in 2010.
The cones open to 4 to 6 cm (1 + 1 ⁄ 2 to 2 + 1 ⁄ 2 in) broad when mature, releasing the seeds immediately after opening. The seeds are 5 mm ( 3 ⁄ 16 in) long, with a 12 to 22 mm ( 1 ⁄ 2 to 7 ⁄ 8 in) wing; they are mostly dispersed by the wind, but some are also dispersed by Clark's nutcrackers .
The female cones are from 11–17 cm (4.3–6.7 in) long, [4] larger and with thicker scales than those of other douglas-firs, and with exserted tridentine bracts. The seeds are large and heavy, 10 mm long and 8 mm broad, with a short rounded wing 13 mm long; [ 4 ] they may be bird or mammal dispersed as the wing is too small to be effective ...
A Catalog of the Cecidomyiidae (Diptera) of the World, Fourth Edition (PDF). Agricultural Research Service, US Department of Agriculture. Gagné, Raymond J.; Jaschhof, Mathias (2014). A Catalog of the Cecidomyiidae (Diptera) of the World (PDF) (Report). Systematic Entomology Laboratory, USDA.