November 22, 200817 yr Pines: Pines are coniferous trees in the genus Pinus, in the family Pinaceae. They make up the monotypic subfamily Pinoideae. There are about 115 species of pine, although different authorities accept between 105 and 125 species. (source: Wikipedia) Interesting stuff.:thumb:
November 22, 200817 yr Pines: Pines are coniferous trees in the genus Pinus, in the family Pinaceae. They make up the monotypic subfamily Pinoideae. There are about 115 species of pine, although different authorities accept between 105 and 125 species. Interesting stuff.:thumb: Really?
November 22, 200817 yr Author Pines are native to most of the Northern Hemisphere. In Eurasia, they range from the Canary Islands and Scotland east to the Russian Far East, and the Philippines, north to just over 70°N in Norway (Scots Pine) and eastern Siberia (Siberian Dwarf Pine), and south to northernmost Africa, the Himalaya and Southeast Asia, with one species (Sumatran Pine) just crossing the Equator in Sumatra to 2°S. In North America, they range from 66°N in Canada (Jack Pine) south to 12°N in Nicaragua (Caribbean Pine). The highest diversity in the genus occurs in Mexico and California. Pines have been introduced in subtropical and temperate portions of the Southern Hemisphere, including Chile, Brazil, South Africa, Australia, and New Zealand, where they are grown widely as a source of timber, and some species are becoming invasive. Very cool!
November 22, 200817 yr Author Great idea for a thread Wireman. Let's discuss this in detail. Sounds excellent to me.
November 22, 200817 yr Author Great idea for a thread Wireman. Let's discuss this in detail. Your typical shortleaf pine forest:
November 22, 200817 yr Wireman, you sure know your wood. I guess researching the genus of pine trees held your interest better than the drumming OSU just put on UM.
November 22, 200817 yr Author Wireman, you sure know your wood. I guess researching the genus of pine trees held your interest better than the drumming OSU just put on UM. Let's try to stay on topic here :thumb:
November 22, 200817 yr According to Encarta, the pine genus itself is the largest in the family, with about 110 species, about 35 of which are in North America. I've been studying the history of the pine tree for years, yet never knew this.
November 22, 200817 yr Author According to Encarta, the pine genus itself is the largest in the family, with about 110 species, about 35 of which are in North America. I've been studying the history of the pine tree for years, yet never knew this. I was very excited to find out (via Wikipedia) that there are 4 types of pine leaves: 1. Seed leaves (cotyledons) on seedlings, borne in a whorl of 4-24. 2. Juvenile leaves, which follow immediately on seedlings and young plants, 2-6 cm long, single, green or often blue-green, and arranged spirally on the shoot. These are produced for six months to five years, rarely longer. 3. Scale leaves, similar to bud scales, small, brown and non-photosynthetic, and arranged spirally like the juvenile leaves. 4. Needles, the adult leaves, which are green (photosynthetic), bundled in clusters (fascicles) of (1-) 2-5 (-6) needles together, each fascicle produced from a small bud on a dwarf shoot in the axil of a scale leaf. These bud scales often remain on the fascicle as a basal sheath. The needles persist for 1.5-40 years, depending on species. If a shoot is damaged (e.g. eaten by an animal), the needle fascicles just below the damage will generate a bud which can then replace the lost leaves. I'm kind of partial to Needles, myself.
November 22, 200817 yr One well-known species is the lodgepole pine which extends from Alaska to Baja California.
November 22, 200817 yr Author One well-known species is the lodgepole pine which extends from Alaska to Baja California. Cool man, thanks for the research :thumb:
November 22, 200817 yr Author One well-known species is the lodgepole pine which extends from Alaska to Baja California. Here is a full blown, mature pine cone:
November 22, 200817 yr I was very excited to find out (via Wikipedia) that there are 4 types of pine leaves: 1. Seed leaves (cotyledons) on seedlings, borne in a whorl of 4-24. 2. Juvenile leaves, which follow immediately on seedlings and young plants, 2-6 cm long, single, green or often blue-green, and arranged spirally on the shoot. These are produced for six months to five years, rarely longer. 3. Scale leaves, similar to bud scales, small, brown and non-photosynthetic, and arranged spirally like the juvenile leaves. 4. Needles, the adult leaves, which are green (photosynthetic), bundled in clusters (fascicles) of (1-) 2-5 (-6) needles together, each fascicle produced from a small bud on a dwarf shoot in the axil of a scale leaf. These bud scales often remain on the fascicle as a basal sheath. The needles persist for 1.5-40 years, depending on species. If a shoot is damaged (e.g. eaten by an animal), the needle fascicles just below the damage will generate a bud which can then replace the lost leaves. I'm kind of partial to Needles, myself. I agree with you about the needles. However, most of my youth was spent studying the intracacies of the non-photosynthetic scale leaf which (if I'm being honest here) I found to be quite exhilerating.
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