Difference between revisions of "Quercus inopina"
Rhodora 31: 79. 1929.
EndemicSelected by author to be illustrated
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> evergreen, to 5 m. <b>Bark</b> gray. <b>Twigs</b> light to dark purplish brown, (1.5-)2-3(-4) mm diam., glabrate to sparsely pubescent, especially at apex. <b>Terminal</b> buds dark purplish brown, ovoid to subconic, 2-6 mm, noticeably 5-angled in cross section, glabrous to tawny strigose on apical 1/3. <b>Leaves</b>: petiole 1.5-8.5 mm, glabrous, occasionally sparsely pubescent. <b>Leaf</b> blade ovate or elliptic to obovate, occasionally spatulate, (25-)45-85 × (15-)25-45 mm, base acute to rounded or cordate, margins entire, strongly revolute, with 1 apical awn, apex obtuse or rounded; surfaces abaxially yellow-scurfy, occasionally somewhat pubescent, rarely glabrous, adaxially distinctly convex, rugose, glabrous or with scattered hairs, especially along midrib and at base. <b>Acorns</b> biennial; cup cup-shaped to bowl-shaped, 6-8 mm high × 10-15 mm wide, covering 1/3-1/2 nut, outer surface puberulent, inner surface half to fully pubescent, scale tips tightly appressed, acute; nut ovoid to broadly ellipsoid, 10-14 × 9-13 mm, glabrate, scar diam. 4.5-8 mm.</span><!-- |
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|publication year=1929 | |publication year=1929 | ||
|special status=Endemic;Selected by author to be illustrated | |special status=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_58.xml |
|genus=Quercus | |genus=Quercus | ||
|section=Quercus sect. Lobatae | |section=Quercus sect. Lobatae | ||
|species=Quercus inopina | |species=Quercus inopina | ||
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Revision as of 14:44, 27 July 2019
Shrubs, evergreen, to 5 m. Bark gray. Twigs light to dark purplish brown, (1.5-)2-3(-4) mm diam., glabrate to sparsely pubescent, especially at apex. Terminal buds dark purplish brown, ovoid to subconic, 2-6 mm, noticeably 5-angled in cross section, glabrous to tawny strigose on apical 1/3. Leaves: petiole 1.5-8.5 mm, glabrous, occasionally sparsely pubescent. Leaf blade ovate or elliptic to obovate, occasionally spatulate, (25-)45-85 × (15-)25-45 mm, base acute to rounded or cordate, margins entire, strongly revolute, with 1 apical awn, apex obtuse or rounded; surfaces abaxially yellow-scurfy, occasionally somewhat pubescent, rarely glabrous, adaxially distinctly convex, rugose, glabrous or with scattered hairs, especially along midrib and at base. Acorns biennial; cup cup-shaped to bowl-shaped, 6-8 mm high × 10-15 mm wide, covering 1/3-1/2 nut, outer surface puberulent, inner surface half to fully pubescent, scale tips tightly appressed, acute; nut ovoid to broadly ellipsoid, 10-14 × 9-13 mm, glabrate, scar diam. 4.5-8 mm.
Phenology: Flowering spring.
Habitat: On deep white "sugar" sands of low sandhill ridges, scrub communities, and flat upland terraces
Elevation: 0-50 m
Discussion
Quercus inopina occurs from Orange County, Florida, southwest to Manatee County and south to Martin County. It flowers one to two weeks later than Q. myrtifolia (A. F. Johnson and W. G. Abrahamson 1982).
The leaves of this species often have numerous small black dots on the adaxial surface. These are ascocarps (the sexual fruiting bodies of ascomycete fungi) of the genus Asterina (D. M. Hunt, pers. comm).
Although no hybrids have been formally described, evidence of hybridization of Quercus inopina with Q. hemisphaerica, Q. laevis, and Q. myrtifolia has been reported (D. M. Hunt 1989).
Selected References
None.
Lower Taxa
None.