Oaks of the World

General data Classifications List of species Local names Back to
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  Quercus trinitatis
Author

Trel. 1924 Mem. Natl. Acad. Sci. 20:143, pl. 277

Diagnosis here

Synonyms  
Local names  
Range Mexico, in the Sierra Madre Oriental, Sierra Norte of Oaxaca and mountains of Chiapas; (Chiapas, Puebla, Hidalgo, Oaxaca, Veracruz); El Salvador; 1500-2200 m;
Growth habit 10-30 m;
Leaves

7-18 cm x 2-6; coriaceous; lanceolate, sometimes oblong or elliptic; apex acute or acuminate, aristate, often curving; base rounded or cuneate; margin entire, thick but not revolute, undulate; hairless above; hairles beneath or glabrate, with tufts of fasciculate hairs at axils, without glandular trichomes; 9-14 vein pairs, slightly prominent adaxially, raised beneath; epidermis slightly papillose; petiole 0.9-3 cm long, glabrous.

Flowers  
Fruits acorn ovoid, glabrous, 1.4-1.8 cm long, included 1/3 to 1/4 in cup; cup halfround, scales smooth, flat, appressed; mature next year from September to November.

Bark, twigs and
buds

twigs 1.5-2.5 mm thick, terete, more or less hairy, brown lenticels pale, conspicuous; bud ovoid to globose, 2.5-3 mm, ovate, glabrous, scale margin ciliate;
Hardiness zone, habitat  
Miscellaneous -- A.Camus : n° 363;
-- Sub-genus Quercus, Section Lobatae, Series Erythromexicanae;
-- Similar to Q. delgadoana which differs in having 10-20 adaxially impressed vein pairs, and a revolute margin;
Subspecies and
varieties
 
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