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Quercus ilex, the holm oak, [2] [3] also (ambiguously, as many oaks are evergreen) evergreen oak, [4] is a large evergreen oak native to the Mediterranean region. It is a member of the section Ilex of the genus, [ 5 ] [ 6 ] with acorns that mature in a single summer.
The name Périgord noir (black Périgord) is derived from the dark colour of its evergreen oak forests (Quercus ilex) and also from the dark, fertile soil in the Sarladais, not, as is often asserted, from the black truffle. Historically, the Périgord noir was the oldest of the four subdivisions of the Périgord.
The forests vary in species composition with elevation and soils.. Lower elevation forests are dominated by sclerophyllous evergreen oaks, including holm oak Quercus ilex, often on limestone-derived soils, and cork oak Quercus suber, often on soils derived from volcanic rocks.
Live oak was widely used in early American butt shipbuilding.Because of the trees' short height and low-hanging branches, lumber from live oaks was used in curved parts of the frame, such as knee braces (single-piece, L-shaped braces that spring inward from the side and support the deck), in which the grain runs perpendicular to structural stress, making for exceptional strength.
Forests of Holm oak (Quercus rotundifolia) form natural forests in most of the Mediterranean region as well as penetrating into the warmer sun-exposed areas and hillsides of the Atlantic region; they extend from sea level, with the subspecies ilex, to an elevation of 1400 metres, in some mountains and high plains of the interior; in the ...
Now 286 years after Siegesbeck, Republicans in 26 states now “protect young students” by banning books. Pardon, me. I had started out to review that lovely book on the “Race to Know All Life ...
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