Oaks of the World

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  Quercus panamandinaea
Author C.H. Mull. 1942
Synonyms
Local names
Range Costa Rica; Panama;
Growth habit 25 m;
Leaves 10-15 cm x 4-6; evergreen; thin but hard; broadly lanceolate to oblanceolate; apex long acuminate; base cuneate, or rounded, or slightly truncate; margin entire slightly wavy, seldom toothed, somewhat revolute; both sides glabrous, or with few stellate trichomes at base of midrib adaxially; 12-18 veins pairs, branched and anastomosed near the margin, impressed above, remotely raised underneath; possibly some obscure intercalary veins; petiole 4 mm long, 1.5-3 mm thick, hairless or with sometimes a stellate pubescence, dark reddish-brown;
Flowers female catkin 1.5 cm long, 2-3 flowered on a glabrous peduncle;
Fruits

acorn 2-2.5 cm long, 1.5-1.8 cm wide, ovoid, hairless, light brown; solitary or to 2-3, on a 1 cm long peduncle; cup 2.5 cm in diameter, 1.5 cm high, cupshaped; scales ovate to ovate-lanceolate, thickenned at base, densely grey tomentose except at the reddish-brown apex; cotyledons often inequal; maturation same year;

Bark, twigs and
buds

twig 1 mm thick, rarely to 2 mm, brown, stellate pubescent then glabrate; inconspicuous light lenticels; bud 2-2.5 mm long, ovoid, subacute, hair less, light straw colored; deciduous stipules;
Hardiness zone, habitat
Miscellaneous -- Named for Panama and Andinae, its range;

-- This taxon, which is currently considered as belonging to the Lobata section of the subgenus Quercus, was placed by its author (C.H. Muller 1940) in the Quercus section, Series Lancifoliae, despite the fact that it is quite different from other taxa of this Series, having large leaves shortly petiolate and long acuminate; for more recent authors it is a synonym of Q. seemannii;


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