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SeedPlants213-page18 - Seed-Dispersing Plants 18...

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Unformatted text preview: Seed-Dispersing Plants - 18 Welwitschia Welwitschia is restricted to the Namib desert of Namibia and adjacent regions of southwestern Africa between 14o 35o S Latitude from the western coast to 100 miles inland in areas of about 2" of annual precipitation. Welwitschia has two large, basal strap-shaped leaves that grow from a meristem on its basal stem. It has a deep taproot that grows down toward the water table. The leaves become shredded at the tips with time and the plant appears to be a rosette of many leaves. For reproduction Welwitschia has an female tube which grows to meet the pollen tube for reproduction. Welwitschia mirabilis Male Strobilus Female ...
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