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Quercus buckleyi Nixon & Dorr
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Quercus buckleyi
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Quercus buckleyi

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Miridae  Ceratocapsus modestus @ AMNH_PBI (1)

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29. Quercus buckleyi Nixon & Dorr, Taxon. 34: 225. 1985.

Buckley's oak

Trees , deciduous, to 15 m. Bark gray and smooth or black and furrowed. Twigs grayish brown to red-brown, rarely somewhat yellowish or gray, 1.5-3 mm diam., glabrous. Terminal buds grayish brown to reddish brown, ovoid to subfusiform, (2.5-)3-7 mm, scales on apical 1/2 distinctly ciliate. Leaves: petiole 20-45 mm, glabrous. Leaf blade circular or broadly elliptic to obovate, 55-100 × 51-112 mm, base cuneate to truncate, often inequilateral, margins with 7-9 lobes and 12-35 awns, lobes oblong to distally expanded, apex acute to acuminate; surfaces abaxially light green or coppery green, glabrous or with small, axillary tufts of tomentum, adaxially shiny or glossy, glabrous, veins raised on both surfaces. Acorns biennial; cup goblet- to cup-shaped, rarely saucer-shaped, 5-11.5 mm high × 10-18 mm wide, covering 1/3-1/2 nut, outer surface glabrous to sparsely puberulent, inner surface glabrous except for a few hairs around scar, scales acute, less than 4 mm, occasionally tuberculate, especially at base of cup, tips appressed; nut broadly ovoid to broadly ellipsoid, rarely oblong, 12-18.5 × 8-14 mm, occasionally with faint rings of pits at apex, glabrous or sparsely puberulent, scar diam. 3.5-8 mm.

Flowering spring. Limestone ridges and slopes, creek bottoms, occasionally along larger streams; 150-500 m; Okla., Tex.

For many years the names Quercus texana , Q . rubra var. texana , and Q . shumardii var. texana were erroneously used for Q . buckleyi (L. J. Dorr and K. C. Nixon 1985).

Quercus texana reportedly hybridizes with Q . marilandica (= Q . × hastingsii Sargent). Quercus × hastingsii may be derived from Q . marilandica var. ashei (D. M. Hunt 1989). Hybridization with Q . shumardii may also occur (L. J. Dorr and K. C. Nixon 1985).

Updated: 2024-05-30 03:34:58 gmt
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