Oaks of the World

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 Quercus magnoliifolia
AuthorNée 1801
Synonymscircinata Née 1801 (A. Camus = n° 236)
flava Née ex Spreng. 1801
haematophlebia Trel. 1924
lutea Née 1801
magnoliifolia var. lutea (Née) A.DC 1864
macrophylla Née 1801
nudinervis Liebm. 1854 (Camus = n° 235)
neoplatyphylla A.Camus 1942
platyphylla E.F.Warb. 1939, nom. illeg
tepicana Trel. 1924
obtusata hartwegii A.DC
Local namesencino bermejo; encino amarillo; encino napis;
Range Mexico (Michoacan, Oaxaca, Colima, Guerrero, Guanajuato, Jalisco, Mexico, Nayarit, Sinaloa) ; 1600-2900 m ;
Growth habit 5-15 m tall, trunk to 15-50 cm in diameter;
Leaves 8-23 x 5-18 cm; deciduous; oboval or broadly elliptic; thin, flat, pliable; apex rounded or obtuse ; base variable ; margin thick, slightly rolled under, crenate-dentate with 8-14 pairs of short mucronate teeth; lustrous green above, hairless except stellate trichomes and glandular hairs at the base of midrib, with veins impressed; minutely reticulate beneath, with yellow tomentum made of glandular hairs and short, sessile, stellate ones, with veins prominent; 11-20 rather straight vein pairs; épidermis papillose and bullate; petiole 0.3-1 cm long, dark red, slightly pubescent;
Flowers in February; staminate catkins several-flowered; pistillate flowers 1 to 3 or more on a 5-15 mm long peduncle;
Fruits acorn 0.8-1.7 cm long, ovoid; 2/3 enclosed by cup; cup 1.4-2 cm in diameter, with large, narrow tomentose scales; maturing in 1 year in June-July; nut sweet;

Bark, twigs and
buds

bark fissured into plates; twig 2-4 mm thick, coffee-coloured, glabrous or glabrescent with stellate and short glandular hairs, with pale yellow lenticels; buds ovoid, obtuse, pubescent at margin, 3-5 mm long; stipules linear, pubescent, 2-10 mm long;
Hardiness zone, habitatnot hardy; prefers dry places;
Miscellaneous-- A. Camus : n° 237 ;
-- Section Quercus;
-- Also spelled "magnoliaefolia" ;
Subspecies and
varieties
Closely related species (if not indentical ?) = Q.poculifer Trel. 1924 (Camus n° 241); for S. Valencia-A., it is the synonym of Q.liebmannii, taxon often considered as identical to Q.obtusata.
Pictures