Oaks of the World

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 Quercus depressa
Author Humb. & Bonpl. 1809
Synonymslaurina Martens & Galeotti 1843, not Bonpl. 1809
subavenia Trel. 1924
Local names 
Range Mexico (Hidalgo, Oaxaca, Puebla, Vera-Cruz ); endemic in Sierra Madre Oriental; 1800-2600 m;
Growth habitusually less than 3-4 m tall, seldom a tree;
Leaves

2-8 cm long, 1-3.5 wide; evergreen, coriaceous; oval more or less lanceolate, lanceolate or elliptic; apex acute, acuminate, aristate; base rounded or obtuse, decurrent; margin entire or with 1-7 pairs of teeth; hairless above, or occasionally with some stellate trichomes near base of midrib; only axil tufts beneath, with sometimes fasciate hairs along veins, without glandular hairs; 3-11 pairs of secondary veins remotely prominent underside, or nearly flat; petiole glabrescent 0.2-1.6 cm long; 

Flowers male catkins 2.5-4.5 cm long, rachis scarcely pubescent;
Fruits acorn 0.9-1.3 cm long, ovoid or almost globose, solitary or paired on a 0.8-1.4 cm long, 1-2 mm thick peduncle; cup enclosing 1/2 of nut, with triangular, slightly pubescent scales; maturing in 2 years;  

Bark, twigs and
buds

bark greyish, finely fissured; twig slender, grey, hairless; bud 1-3 mm long, glabrous or nearly so; terminal bud 1-3 mm long, ovoid, with ovate scales ciliate at margin; stipules deciduous;
Hardiness zone, habitat withstands -18° C;
Miscellaneous-- A. Camus : n° 366;
-- Section Lobatae;
Subspecies and
varieties
 
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