| Quercus microphylla | |
| Author |
Née 1801 Anales Ci. Nat. 3: 264 Diagnosis here |
| Synonyms | frutex var. uhdeana
Trel. 1924 macrocarpa Endl. 1848, nom. illeg. not Michx. 1801 microphylla var. uhdeana (Trel.) A.Camus 1939 repanda Benth. 1840, not Bonpl. 1809 |
| Local names | |
| Range | Mexico
(Aguascalientes, Durango, Guanajuato, Hidalgo, Jalisco, Nuevo Leon, Oaxaca,
Puebla, Querétaro, Tamaulipas, Tlaxcala, Veracruz, Zacatecas) ;
2000-3000 m ; |
| Growth habit | small
shrub 0.4-2 m tall, branched even at base of trunk; |
| Leaves |
1.8-5.5 x 0.7-1.8 cm; deciduous; sub-chartaceous; elliptic more or less narrowly, or oblong-lanceolate; apex obtuse or rounded, often mucronate; base rounded or subcordate; margins slightly revolute, entire or slightly toothed near apex (1-2 pairs of teeth); lustrous grey-green, rough above, with stalkless 6-15 rays stellate hairs and sparce simple not glandular trichomes; yellowish persistent tomentose beneath, woolly, with trichomes like those of the adaxial side, and also with simple glandular uniseriate golden trichomes; 8-10 veins pairs impressed above, prominent beneath; epidermis bullate and papillose, whitish; petiole tomentose 2-6 mm; |
| Flowers | pistillates flowers on a tomentose peduncle reaching 1cm long, 1mm thick; |
| Fruits |
acorn
1-1.5 cm; ovoid, mucronate, stalkless or on a peduncle to 1 cm long;
singly or paired; enclosed 1/2 by scaly, half-round cup; |
|
Bark, twigs and |
bark
fissured into thin, irregular plates, dark grey; twigs 1.5-2.5 mm in cross-section,
glabrescent the second year; bud ovoid to globose, 1-2 mm, brown, obtuse,
with ciliate scales; |
| Hardiness zone, habitat | not
hardy; prefers dry places; |
| Miscellaneous |
-- A. Camus : n° 242; -- Possible confusion with Q.
striatula but this species has more coriaceous, 1-2.5 cm x 0.5-1.4
leaves, margins nearly flat, bulbous glandular trichomes abaxially,
an acorn enclosed 1/3-1/4 in cup, and is not taller than 0.5m; |
| Subspecies and varieties |
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| Pictures |
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