Selasa, 25 Mei 2010

The Twin Flower

Linnaea borealis, commonly known as Twinflower (sometimes written twin flower) is a woodland subshrub, treated either in the family Caprifoliaceae, or sometimes in its own family Linnaeaceae. The stems are slender, pubescent and prostrate, growing to 20-40 cm long, with opposite evergreen rounded oval leaves 3-10 mm long and 2-7 mm broad. The flowering stems curve erect, to 4-8 cm tall, leafless except at the base; the flowers are paired, pendulous, 7-12 mm long, pale pink with a five-lobed corolla. It has a circumpolar distribution in moist subarctic to cool temperate forests, extending further south at high altitudes in mountains, in Europe south to the Alps, in Asia south to northern Japan, and North America south to northern California and Arizona in the west, and Tennessee in the Appalachian Mountains in the east.

In Great Britain, the twinflower grows in mainly open pine woodlands in Scotland and northernmost England. Foresters consider this plant to be an indicator species of ancient woodlands, often found in association with Creeping Lady's Tresses. It is listed as "nationally scarce". It is found in about 50 sites around the country, with most situated in the woods around the Cairngorms; the southernmost locations are four sites in Northumberland and one in County Durham. The sparseness of the sites is responsible for the continued decline of the flower in the country.

Its common name is from the paired flowers. It is one of the few species to be named after Carolus Linnaeus. It was Linnaeus' favourite plant, and when a young man he named this small twin flower "Linnæa" in his early papers. However, later in the manuscript Systema Naturae he replaced it with "Rudbeckia".

The final naming was formally made by Linnaeus' teacher Jan Frederik Gronovius, and Linnaeus added borealis, meaning Nordic. Linnaeus took this flower as his own personal symbol when he was raised to the Swedish nobility in 1757. Of it, Linnaeus said "Linnaea was named by the celebrated Gronovius and is a plant of Lapland, lowly, insignificant, disregarded, flowering but for a brief time—from Linnaeus, who resembles it".

The flower is the provincial emblem of Småland in Sweden, Linnaeus' home province.




Source : http://en.wikipedia.org/wiki/Twinflower

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