Monday, June 11, 2012

Marine Life in Norway–Naked Snail

In regularly Norway Post  issued a stamp set features the marine life species of Norway. On March 29, 2006, they has been issue one  stamp as the third series    depicted the Naked snail or Polycera quadrilineata which have been observed from the Mediterranean to the North of Norway. The stamp picture base on a photo by Erling Svensen.

Polycera Quadrilineata

Polycera quadrilineata grows to about 40 mm in length. Its body  is white with blotches of yellow or orange. Sometimes black spots or speckling can be present. The orange marks usually from a line down the dorsal midline, with others in the sides and dorsal part of the posterior foot. The rhinophores, gills and tentacles are tipped with orange, and in some cases the gills are edged in orange. There usually four pointed papillae around the anterior (head end) of the mantle. It feeds on ectoproct bryozoans, especially Membranipora membranacea.

These  sea slugs can often found on kelp or red algae where they graze on moss animals. They often congregate in large number. This is one of the sea slugs that is most often observed by divers.This species have distribution range from Iceland and Greenland South to the Mediterranean (Western Europe Region).

Wednesday, June 6, 2012

Flowers of Aruba - 2011

Aruba Post have issued the stamp set features flowers which are known well in many countries  in year 2011. The issue stamps are depicted many species of flower  i.e: Delonix regia, Cassia fistula, Ipomoea pes-caprae,Allamanda cathartica, Catharanthus roseus, Nerium oleander, Bougainvillea glabra ,Hibiscus rosa-sinensis, Cordia sebestena,  and Echinopsis lageniformis. Some of depicted species are  declared as a national flower of their country.

Delonix regia is a species of flowering plant in the family Fabaceae, subfamily Caesalpinioideae. It is grown as an ornamental tree and in English it is given the name Royal Poinciana or Flamboyant. In addition to its ornamental value, it is also a useful shade tree in tropical conditions, because it usually grows to a modest height but spreads widely, and its dense foliage provides full shade.
The Royal Poinciana is found in Madagascar's Madagascar dry deciduous forests. In the wild it is endangered, but it is widely cultivated elsewhere.The flowers are large, with four spreading scarlet or orange-red petals up to 8 cm long, and a fifth upright petal called the standard, which is slightly larger and spotted with yellow and white.

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