With the help of photo--microscopy and histochemical methods,the external andinternal structure of leaves of 10 main sand--fixed plants in Mao us desert werecomparatively investigated. The results showed that 10 psammophytes form various type ofstructures,so as to adapt sandy desert environment in different ways. The commoncharacteristics are as follows: 1. The leaves of 10 plants have small ratio of the external leafsurface to its volume,and leaves are covered with trichomes and thick cuticle,the sunkensto...
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