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Saturday, December 11, 2010

Pitcher Plant

Types of Pitcher Plant :-
1.Nepenthes
2.Sarraceniaceae

NEPENTHES :-
                          Popularly known as tropical pitcher plants or monkey cups, are a genus of carnivorous plants in the monotypic family Nepenthaceae. The genus comprises roughly 130 species, numerous natural and many cultivated hybrids. They are mostly liana-forming plants of the Old World tropics, ranging from South China, Indonesia, Malaysia and the Philippines; westward to Madagascar (2 species) and the Seychelles . southward to Australia and New Caledonia ; and northward to India  and Sri Lanka . The greatest diversity occurs on Borneo and Sumatra with many endemic species. Many are plants of hot humid lowland areas, but the majority are tropical montane plants, receiving warm days but cool to cold humid nights year round. A few are considered tropical alpine with cool days and nights near freezing. The name monkey cups refers to the fact that monkeys have been observed drinking rainwater from these plants.


SARRACENIACEAE :-
                                    is a family of pitcher plants (along with Nepenthaceae), belonging to order Ericales (previously Nepenthales).The family comprises three extant genera, Sarracenia (American Pitcher Plant, or Trumpet Pitcher), Darlingtonia (Cobra Lily or California Pitcher Plant), and Heliamphora (Sun Pitcher), as well as the extinct Archaeamphora longicervia. The first two are native to North America while Heliamphora is native to South America. All three are carnivorous plants that lure insects with nectar and use their elongated tube shaped leaves filled with water and digestive enzymes (or bacteria in the case of Darlingtonia) to catch and consume them. Many species also use downward pointing hairs and waxy secretions to make it difficult for insects to escape.These plants grow in nutrient-poor, often acidic soil and use the insects as a nutritional supplement. The pitchers originate from a rhizome and die back during the winter dormancy. Plants of the genus Sarracenia occur mostly in Sphagnum bogs.
Most Sarraceniaceae have tall, narrow pitchers that are vertical or nearly so. Sarracenia purpurea, however, has short, squat, bulbous pitchers close to the ground, and Sarracenia psittacina has pitchers that grow horizontally.