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| [Note Guidelines] Photographer's Note |
The plant:
Genista scorpius, (L) De Candolle, 1805
Scorpionis thorn
Skorpion ginster
Aulaga, Aliaga, Argelaga vera
Ginesta scorpione
Genêt scorpion, Genêt épineux, Genêt purgatif
Division : Magnioliophyta
Classe : Magnioliopsida
Sous-Classe : Rosidae
Order : Fabales
Family : Fabaceae
Tribe :
Genus : Genista
Species : Genista scorpius
Phyllogenetic classification: Plantes vivaces de l'ordre des Fabales, appartenant à la famille des Fabaceae, sous-famille des Faboideae et au genre Genista.
Inclusion in the inventory of natural heritage - protected aquitaine
Ecology:
The habitat type is forest undergrowth herbaceous médioeuropéens, basophils (limestone preferential). Range is the Mediterranean-Atlantic (Garrigues and sterile places du Midi, from the Hautes-Alpes and the Bouches-du-Rhone into the Gers and the Pyrenees, Corsica. Balearic Islands, Spain and Portugal).
General Description:
It is a 1 to 2 meters shrub with strong spines, that may be encountered on the arid hills of the Midi. The stems are ribbed, very tough, very oarswoman, erect, with branches ridged, smooth, filled with numerous lateral spines. Leaves simple, short petiolate, obovate or lanceolate, slightly pubescent below; spinescentes stipules, small leaves are hairy on the underside, at least when they are young. The stipules are transformed into small spines. The flowers are placed laterally in bundles along the old branches. They comport pedicels of bracteoles, at least equaling the calyx, a calyx glabrous, lip nearly equal; a banner glabrous, slightly longer than the calyx glabrous hull tube ends with two lips, upper deeply divided into two lobes and the lower three teeth. The fruit is a pod 25-33 mm. 5, linear-oblong, dented at top lanceolate, glabrous, with 3-7 seeds ovoid, olive.
Features: The function of chlorophyll is partly transferred to the stems. There is normally the presence of nodules, fixing atmospheric nitrogen in root nodules These are the result of a symbiosis between nitrogen-fixing bacteria, the rhizobia, and these different species of legumes. A special metabolic Fabaceae is the presence of an oxygen-binding hemoproteins, the leghemoglobin (or LegHb), very similar to hemoglobin. This protein is found in root nodules and can fix the oxygen to form an anaerobic environment conducive to the development of rhizobium. These plants are sometimes used to restore areas damaged by anthropic activities,
Name in the flora of Coste: Genista scorpius DC. - Thorn-flowered.
Sources:
COSTE H., Flore descriptive and illustrated in France, Corsica and parts of neighboring
P. FOURNIER, Les quatre flores de la France
VILMORIN Guinochet M. and R. of, Flore de France, CNRS edition
BONNIER G. Mr. and Douin, La grande flore
TREE OF LIFE WEB PROJECT http://www.tolweb.org/tree/
The camera:
Camera : Olympus E-520
Objective : Zuiko 50mm macro
Aperture : f / 5,6
Speed : 1/250
Aperture Priority
Sunny weather, full sun
Time : 10:09 GMT
ISO - 100
The picture:
Original Size : 3648 x 2736 px
Format : Olympus Raw
Resolution : 314ppp x 314ppp
Depth : 24
Color : sRGB
Final size : 800 x 600 jpg
Image processing in GIMP; Cropping, changing gamma, |
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