Show Lower Taxa
Difference between revisions of "Quercus durata"
Fl. Calif. 1(2): 356. 1909.
Common names: Leather oak
IllustratedEndemic
Synonyms: Quercus dumosa var. bullata Engelmann Quercus dumosa var. revoluta Sargent
Treatment appears in FNA Volume 3.
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|common_names=Leather oak | |common_names=Leather oak | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
| − | |name= | + | |name=Quercus dumosa var. bullata |
|authority=Engelmann | |authority=Engelmann | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=variety |
| − | |name= | + | }} {{Treatment/ID/Synonym |
| + | |name=Quercus dumosa var. revoluta | ||
|authority=Sargent | |authority=Sargent | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Fagaceae;Quercus;Quercus sect. Quercus;Quercus durata | |hierarchy=Fagaceae;Quercus;Quercus sect. Quercus;Quercus durata | ||
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> evergreen, 1-2(-3) m. <b>Bark</b> scaly. <b>Twigs</b> gray or yellowish, 1-3 mm diam., densely or sparsely tomentulose, often with prominent, yellowish, spreading hairs. <b>Buds</b> brown or reddish brown, ovoid or globose, 1-2 mm, glabrous or puberulent. <b>Leaves</b>: petiole 1-5 mm. <b>Leaf</b> blade cupped or convex, rarely somewhat planar, (10-)15-40 × 7-15(-20) mm, base cuneate, rounded-attenuate, or truncate, margins entire or irregularly toothed, sometimes spinose, usually unevenly revolute, secondary veins 4-6 on each side, apex rounded or subacute; surfaces abaxially densely to sparsely covered with erect, stipitate, (1-)2-4(-6)-rayed hairs 1-4 mm, felty to touch, secondary veins prominent, adaxially grayish or yellowish, with dense or scattered, semi-erect or appressed hairs, secondary veins obscure or somewhat impressed. <b>Acorns</b> solitary or paired, subsessile; cup reddish, hemispheric, deeply cup-shaped or turbinate, 4-6 mm deep × 12-18 mm wide, enclosing to 1/2 nut or more, scales reddish or yellowish, weakly to strongly tuberculate, often somewhat glandular; nut globose, ovoid or cylindric, 15-25 × 10-25 mm, apex rounded or obtuse, persistently minute-puberulent. <b>Cotyledons</b> distinct.</span><!-- |
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name=Quercus durata | name=Quercus durata | ||
| − | |||
|authority=Jepson | |authority=Jepson | ||
|rank=species | |rank=species | ||
|parent rank=section | |parent rank=section | ||
| − | |synonyms= | + | |synonyms=Quercus dumosa var. bullata;Quercus dumosa var. revoluta |
|basionyms= | |basionyms= | ||
|family=Fagaceae | |family=Fagaceae | ||
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|publication title=Fl. Calif. | |publication title=Fl. Calif. | ||
|publication year=1909 | |publication year=1909 | ||
| − | |special status= | + | |special status=Illustrated;Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V3/V3_862.xml |
|genus=Quercus | |genus=Quercus | ||
|section=Quercus sect. Quercus | |section=Quercus sect. Quercus | ||
|species=Quercus durata | |species=Quercus durata | ||
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-->[[Category:Treatment]][[Category:Quercus sect. Quercus]] | -->[[Category:Treatment]][[Category:Quercus sect. Quercus]] | ||
Latest revision as of 21:51, 5 November 2020
Shrubs, evergreen, 1-2(-3) m. Bark scaly. Twigs gray or yellowish, 1-3 mm diam., densely or sparsely tomentulose, often with prominent, yellowish, spreading hairs. Buds brown or reddish brown, ovoid or globose, 1-2 mm, glabrous or puberulent. Leaves: petiole 1-5 mm. Leaf blade cupped or convex, rarely somewhat planar, (10-)15-40 × 7-15(-20) mm, base cuneate, rounded-attenuate, or truncate, margins entire or irregularly toothed, sometimes spinose, usually unevenly revolute, secondary veins 4-6 on each side, apex rounded or subacute; surfaces abaxially densely to sparsely covered with erect, stipitate, (1-)2-4(-6)-rayed hairs 1-4 mm, felty to touch, secondary veins prominent, adaxially grayish or yellowish, with dense or scattered, semi-erect or appressed hairs, secondary veins obscure or somewhat impressed. Acorns solitary or paired, subsessile; cup reddish, hemispheric, deeply cup-shaped or turbinate, 4-6 mm deep × 12-18 mm wide, enclosing to 1/2 nut or more, scales reddish or yellowish, weakly to strongly tuberculate, often somewhat glandular; nut globose, ovoid or cylindric, 15-25 × 10-25 mm, apex rounded or obtuse, persistently minute-puberulent. Cotyledons distinct.
Discussion
Chaparral, oak woodlands, open pine forests, on serpentine and nonserpentine soils; 150-1500 m.
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Leaf blade adaxially grayish stellate, usually deeply cupped, growth compact; leaves densely crowded on twigs; serpentine soils, Santa Barbara County and northward. | Quercus durata var. durata |
| 1 | Leaf blade adaxially greenish, glabrate or essentially so, rarely deeply cupped, usually moderately cupped or subplanar, growth open, scraggly; leaves not densely crowded; nonserpentine soils, Los Angeles County. | Quercus durata var. gabrielensis |