Difference between revisions of "Quercus boyntonii"
Biltmore Bot. Stud. 1: 47. 1901.
Common names: Boynton oak
Conservation concernEndemicSelected by author to be illustrated
Synonyms: Variety (Beadle) Sargent
Treatment appears in FNA Volume 3.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> rarely small trees, deciduous or subevergreen, shrubs low, under 2 m, often trailing, rhizomatous, trees to 6 m. <b>Bark</b> brown, scaly. <b>Twigs</b> light brown, 1.5-3 mm diam., densely tomentulose. <b>Buds</b> reddish brown, ovoid, 2-3(-4) mm, apex acute or rounded, sparsely pubescent. <b>Leaves</b>: petiole (4-)5-10(-15) mm. <b>Leaf</b> blade obovate or oblanceolate, (39-)50-100(-125) × 20-60(-91) mm, base cuneate, margins minutely revolute, broadly 3-lobed distally or with 3-5 rounded, irregular lobes in distal 1/2, secondary veins curved, 6-8 on each side, apex broadly ovate or triangular-lobed; surfaces abaxially grayish or silvery, densely tomentulose-glandular with minute, appressed-stellate hairs, adaxially dark green, glossy, glabrous or with minute, scattered, simple hairs. <b>Acorns</b> 1-2, on peduncle 2-10(-35) mm; cup deeply or shallowly cup-shaped, 5-10 mm deep × 10-13 mm wide, including 1/3-1/2 nut, scales closely appressed, gray, tomentulose; nut light brown, ovoid, 10-17 × 7-13 mm, apex rounded, glabrous. <b>Cotyledons</b> distinct.</span><!-- |
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|publication year=1901 | |publication year=1901 | ||
|special status=Conservation concern;Endemic;Selected by author to be illustrated | |special status=Conservation concern;Endemic;Selected by author to be illustrated | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna- | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_170.xml |
|genus=Quercus | |genus=Quercus | ||
|section=Quercus sect. Quercus | |section=Quercus sect. Quercus | ||
|species=Quercus boyntonii | |species=Quercus boyntonii | ||
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-->[[Category:Treatment]][[Category:Quercus sect. Quercus]] | -->[[Category:Treatment]][[Category:Quercus sect. Quercus]] | ||
Revision as of 13:34, 27 July 2019
Shrubs, rarely small trees, deciduous or subevergreen, shrubs low, under 2 m, often trailing, rhizomatous, trees to 6 m. Bark brown, scaly. Twigs light brown, 1.5-3 mm diam., densely tomentulose. Buds reddish brown, ovoid, 2-3(-4) mm, apex acute or rounded, sparsely pubescent. Leaves: petiole (4-)5-10(-15) mm. Leaf blade obovate or oblanceolate, (39-)50-100(-125) × 20-60(-91) mm, base cuneate, margins minutely revolute, broadly 3-lobed distally or with 3-5 rounded, irregular lobes in distal 1/2, secondary veins curved, 6-8 on each side, apex broadly ovate or triangular-lobed; surfaces abaxially grayish or silvery, densely tomentulose-glandular with minute, appressed-stellate hairs, adaxially dark green, glossy, glabrous or with minute, scattered, simple hairs. Acorns 1-2, on peduncle 2-10(-35) mm; cup deeply or shallowly cup-shaped, 5-10 mm deep × 10-13 mm wide, including 1/3-1/2 nut, scales closely appressed, gray, tomentulose; nut light brown, ovoid, 10-17 × 7-13 mm, apex rounded, glabrous. Cotyledons distinct.
Phenology: Flowering spring.
Habitat: Deep sands and crevices in pine forests, along streams
Elevation: 0-200 m
Discussion
Of conservation concern.
Quercus boyntonii is a rare and poorly known species of somewhat uncertain distribution; probably it is often overlooked. Some intermediates between Q. boyntonii and Q. margaretta are known. These tend to be larger shrubs, to 2 m with felty hairs proximally but with the rhizomatous habit of Q. boyntonii.
Selected References
Lower Taxa
None.