19.04.2013 Views

Os Eucaliptos e as Aves da Quinta de São Francisco

Os Eucaliptos e as Aves da Quinta de São Francisco

Os Eucaliptos e as Aves da Quinta de São Francisco

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

a quinta e a natureza<br />

a quinta e a natureza<br />

84 the quinta and nature the quinta and nature 85<br />

Eucalyptus obliqua L’Hér.<br />

Exemplares representativos na <strong>Quinta</strong><br />

Comum na proprie<strong>da</strong><strong>de</strong>, um dos exemplares<br />

mais notáveis me<strong>de</strong> perto <strong>de</strong> 45 metros <strong>de</strong><br />

altura e 5 metros <strong>de</strong> P. A. P.<br />

É dos eucaliptos com maior área <strong>de</strong> distribuição<br />

na Austrália, po<strong>de</strong>ndo ser encontrado na Nova<br />

Gales do Sul, Vitória, Austrália do Sul e<br />

T<strong>as</strong>mânia. É uma espécie <strong>de</strong> gran<strong>de</strong> porte, cujos<br />

exemplares maiores chegam a ter 90 metros<br />

<strong>de</strong> altura.<br />

Com uma c<strong>as</strong>ca c<strong>as</strong>tanho-avermelhado<br />

extremamente fibrosa, entrelaça<strong>da</strong> que se<br />

apresenta por vezes compacta, este eucalipto<br />

<strong>de</strong>ve o seu nome à forma <strong>da</strong> b<strong>as</strong>e d<strong>as</strong> folh<strong>as</strong>.<br />

Na ver<strong>da</strong><strong>de</strong>, <strong>as</strong> folh<strong>as</strong> adult<strong>as</strong> têm uma b<strong>as</strong>e<br />

niti<strong>da</strong>mente oblíqua, sendo ligeiramente<br />

ondulad<strong>as</strong> e ocorrendo <strong>de</strong> forma alterna<strong>da</strong>.<br />

As folh<strong>as</strong> juvenis qu<strong>as</strong>e não têm pedículo e<br />

n<strong>as</strong>cem <strong>de</strong> forma oposta em dois a sete nós.<br />

É entre Junho e Agosto que <strong>as</strong> flores, branc<strong>as</strong><br />

e que surgem em umbel<strong>as</strong> com 11 a 15 uni<strong>da</strong><strong>de</strong>s,<br />

cobrem a árvore. <strong>Os</strong> frutos, suportados por um<br />

pé muito curto, me<strong>de</strong>m perto <strong>de</strong> um centímetro.<br />

A ma<strong>de</strong>ira <strong>de</strong>ste eucalipto é pesa<strong>da</strong>, sendo<br />

usa<strong>da</strong> na construção civil, em estrutur<strong>as</strong><br />

e carpintari<strong>as</strong> <strong>de</strong> exteriores e interiores<br />

e no revestimento <strong>de</strong> pisos.<br />

Foi a primeira espécie <strong>de</strong> eucalipto a ser<br />

<strong>de</strong>scrita, em 1788, pelo botânico francês<br />

L’Héritier.<br />

Eucalyptus obliqua L’Hér.<br />

representative specimens found in the <strong>Quinta</strong><br />

Wi<strong>de</strong>spread in the property grounds, with its most<br />

striking example me<strong>as</strong>uring almost 45 metres,<br />

with a BHP of 5 metres.<br />

This is one of the most wi<strong>de</strong>ly distributed<br />

eucalyptus species in Australia, and can be found<br />

in New South Wales, Victoria, Southern Australia<br />

and T<strong>as</strong>mania. It is a large-sized tree, whose<br />

largest specimens may reach heights<br />

of 90 metres.<br />

With its reddish-brown bark, extremely fibrous<br />

and compactly intertwined in some sections, this<br />

eucalyptus owes its name to its leaves’ b<strong>as</strong>e. In<br />

fact, adult leaves have a clearly oblique shape,<br />

slightly undulated and alternate. Juvenile leaves<br />

have almost no peduncle and their arrangement<br />

is opposite in two to seven no<strong>de</strong>s.<br />

Flowering occurs between June and August in<br />

umbel-like cymes containing from 11 to 15 units<br />

and cover the tree. The fruit, supported by a very<br />

short peduncle, me<strong>as</strong>ure around one centimetre.<br />

This eucalyptus’ wood is heavy and is used in civil<br />

construction, structures and exterior and interior<br />

carpentry works <strong>as</strong> well <strong>as</strong> in floorings.<br />

It w<strong>as</strong> the first eucalyptus species to be <strong>de</strong>scribed,<br />

in 1788, by the French botanist, L’Héritier.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!