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Unformatted text preview: stomata that open at night rather than in the daylight to minimize water loss. Nerium oleander , xs Pine leaf, xs Conifer Leaves (Needles) The needles of conifers have many of the same adaptations of xeromorphic leaves. Conifers predominate in areas that have long, cold winters and dryer summers. To survive, conifers are adapted to conditions of moisture stress. A typical conifer needle will have sunken stomata, often in channels on the lower surface, a thick cuticle, hypodermis layers, and, in addition, an endodermis surrounding the vein (or rarely, veins). As with other conifer organs, the leaves will have resin canals, lined with parenchyma....
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- Fall '09