Show Lower Taxa
Difference between revisions of "Pinus torreyana"
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|common_names=Torrey pine | |common_names=Torrey pine | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=C | ||
| + | |label=Conservation concern | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms= | |synonyms= | ||
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Trees </b>to 15(–23)m; trunk to 1m diam., in nature mostly crooked and leaning; crown rounded to flattened or irregular. <b>Bark</b> red-brown to purple-red, deeply furrowed with irregular, elongate, flat, scaly ridges. <b>Branches</b> irregular, spreading-ascending, candelabralike; twigs stout (1–2cm thick), greenish, aging deep gray-brown to near black, rough. <b>Buds</b> conic-ovoid, pale brown, to 2.5cm; scale margins white-fringed. <b>Leaves</b> mostly 5 per fascicle, ascending or spreading, persisting 3–4 years, 15–30cm × ca. 2mm, straight or curved, slightly twisted, dull gray-green, all surfaces with fine stomatal lines, margins serrulate, apex abruptly acute; sheath to 2cm, shed early, base persistent. <b>Pollen</b> cones ovoid, 20–30mm, yellow. <b>Seed</b> cones maturing in 3 years, shedding seeds soon thereafter, persisting to 5 years, lateral, massive, heavy, symmetric, ovoid before opening, broadly ovoid when open, 10–15cm, yellow- to red-brown, lustrous, stalks to 4cm; apophyses thick, angulately dome-shaped, with 5 low convergent keels; umbo central, forming short, curved-tipped pyramid. <b>Seeds</b> narrowly obovoid; body 16–24mm, brown, apically dark brown; wing broad, oblique-tipped, to 15mm.</span><!-- |
-->{{Treatment/Body | -->{{Treatment/Body | ||
| − | |distribution= | + | |distribution=Calif.;only in the flora. |
| − | |discussion=<p>Pinus torreyana is a rare and local Tertiary relic species whose present range is reduced to two small areas of southern California: near Del Mar (San Diego County) and on the northeastern shore of Santa Rosa Island (Santa Barbara County). Its distribution in Oligocene and Miocene (or at least that of its near ancestor) extended north to Oregon. Its harsh natural habitat elicits an unusually contorted and often sparse form, quite unlike the cleaner and taller form the species takes in cultivation.</p><!-- | + | |discussion=<p><i>Pinus torreyana</i> is a rare and local Tertiary relic species whose present range is reduced to two small areas of southern California: near Del Mar (San Diego County) and on the northeastern shore of Santa <i>Rosa</i> Island (Santa Barbara County). Its distribution in Oligocene and Miocene (or at least that of its near ancestor) extended north to Oregon. Its harsh natural habitat elicits an unusually contorted and often sparse form, quite unlike the cleaner and taller form the species takes in cultivation.</p><!-- |
| − | --><p>In terms of numbers of individuals in the wild, as well as the small area occupied by natural populations, Pinus torreyana is without a doubt the rarest North American pine. As such it is under protection. Artificial crosses between it and another, more widespread Tertiary relic, P. sabiniana, have been successful.</p><!-- | + | --><p>In terms of numbers of individuals in the wild, as well as the small area occupied by natural populations, <i>Pinus torreyana</i> is without a doubt the rarest North American pine. As such it is under protection. Artificial crosses between it and another, more widespread Tertiary relic, <i>P. sabiniana</i>, have been successful.</p><!-- |
--><p>Subspecies 2.</p> | --><p>Subspecies 2.</p> | ||
|tables= | |tables= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Pinus torreyana | name=Pinus torreyana | ||
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|authority=Parry ex Carrière | |authority=Parry ex Carrière | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Pinaceae | |family=Pinaceae | ||
| − | |distribution= | + | |distribution=Calif.;only in the flora. |
|reference=haller1986a | |reference=haller1986a | ||
|publication title= | |publication title= | ||
|publication year=1855 | |publication year=1855 | ||
| − | |special status= | + | |special status=Endemic;Conservation concern |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_140.xml |
|genus=Pinus | |genus=Pinus | ||
|species=Pinus torreyana | |species=Pinus torreyana | ||
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| − | -->[[Category:Treatment]][[Category:Pinus]] | + | --> |
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| + | [[Category:Revised Since Print]] | ||
Latest revision as of 17:56, 6 November 2020
Trees to 15(–23)m; trunk to 1m diam., in nature mostly crooked and leaning; crown rounded to flattened or irregular. Bark red-brown to purple-red, deeply furrowed with irregular, elongate, flat, scaly ridges. Branches irregular, spreading-ascending, candelabralike; twigs stout (1–2cm thick), greenish, aging deep gray-brown to near black, rough. Buds conic-ovoid, pale brown, to 2.5cm; scale margins white-fringed. Leaves mostly 5 per fascicle, ascending or spreading, persisting 3–4 years, 15–30cm × ca. 2mm, straight or curved, slightly twisted, dull gray-green, all surfaces with fine stomatal lines, margins serrulate, apex abruptly acute; sheath to 2cm, shed early, base persistent. Pollen cones ovoid, 20–30mm, yellow. Seed cones maturing in 3 years, shedding seeds soon thereafter, persisting to 5 years, lateral, massive, heavy, symmetric, ovoid before opening, broadly ovoid when open, 10–15cm, yellow- to red-brown, lustrous, stalks to 4cm; apophyses thick, angulately dome-shaped, with 5 low convergent keels; umbo central, forming short, curved-tipped pyramid. Seeds narrowly obovoid; body 16–24mm, brown, apically dark brown; wing broad, oblique-tipped, to 15mm.
Distribution
Calif., only in the flora.
Discussion
Pinus torreyana is a rare and local Tertiary relic species whose present range is reduced to two small areas of southern California: near Del Mar (San Diego County) and on the northeastern shore of Santa Rosa Island (Santa Barbara County). Its distribution in Oligocene and Miocene (or at least that of its near ancestor) extended north to Oregon. Its harsh natural habitat elicits an unusually contorted and often sparse form, quite unlike the cleaner and taller form the species takes in cultivation.
In terms of numbers of individuals in the wild, as well as the small area occupied by natural populations, Pinus torreyana is without a doubt the rarest North American pine. As such it is under protection. Artificial crosses between it and another, more widespread Tertiary relic, P. sabiniana, have been successful.
Subspecies 2.
Selected References
Key
| 1 | Crown of sheltered tree narrower than height of mature tree, open with well-spaced branches in natural sites; seed cones less than 13.5 cm broad, as broad as long or longer; only tip of umbo curved outward; maximum seed width ca. 12 mm. | Pinus torreyana subsp. torreyana |
| 1 | Crown of sheltered tree broader than height of mature tree, compact in natural sites; seed cones mostly more than 13.5 cm broad, broader than long; entire umbo curved outward; maximum seed width ca. 14 mm. | Pinus torreyana subsp. insularis |