Tan Wei Jie

weijie (at) tanwj.com

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O-Level/A-Level Private Tuition for Mathematics and Physics

A Singapore-Based Electronic Guidebook for Mathematics

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  • 18Mar

    On 12 March 2012, two new stamps featuring the yellow burhead (Limnocharis flava) and water lettuce (Pistia stratiotes) were released by Singapore Post. These two stamps are part of the Pond Life Definitives series.

    Pond Life Definitives 2012

    The yellow burhead featured on the 1st Local stamp has yellow cup-shaped flowers and grows up to nearly one metre above water. In several Southeast Asian countries, as well as India, the young leaves and stems are traditionally eaten as a vegetable. While its seeds are dispersed by water, water birds and animals, this plant is commonly used to feed pigs and fish.

    Shown on the 2nd Local stamp is the water lettuce. It has light green leaves arranged like a lettuce and can grow up to 14 centimetres long. They float on the water surface with its long roots submerges in water, as the leaves have parallel veins, wavy margins and are covered in short hairs that form basket-like structures that trap pockets of air and increase its buoyancy. Rarely, one may see its small, white flowers.

    Stamp Size: 30 mm x 27 mm
    Perforation: 14 x 14
    Printer: Joh Enschede Security Print
    Designer: Eric Kong (Design Vizio)

    Images by Singapore Post
    Text adapted from Singapore Post

    Posted by Wei Jie @ 18:13

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