Iris blossoms are highly specialized and different from our Standard Blossom in several interesting ways. The image shows a typical iris flower with some of its unusual modifications.
The showy parts of iris flowers are not clearly distinguishable between calyx and corolla, as in our Standard Blossom. The lowest parts, where you'd expect the calyx to be, are just as colorful and fleshy as the upper parts, where the corolla should be. When you want to refer to both calyx and corolla, or the showy parts where the calyx and corolla should be, you can call the whole structure a perianth. One specialized "perianth segment" of the iris blossom, situated where we'd expect a calyx's sepals to be, is the petal-like falls. The falls serves as a "landing pad" for pollinators. Notice how the falls in the flower above has bright lines leading into the blossom's mouth. These serve as nectar guides, directing pollinators toward the nectar.
The 3 standards correspond to a normal flower's petals. They rise above the blossom and provide more color and pollinator-attracting power to the flower.
One last interesting feature of iris blossoms is that in many species and varieties the upper surface of the falls is equipped with a beard consisting of fuzz such as that shown in the much-magnified image at the left. The beard gives pollinators something to hold on to as they enter the iris blossom in search of nectar.
【国花系列:IRIS(法国)】相关文章:
★ 在工作中成长
★ 热血,汗水和眼泪
★ 贝多芬经典情书
★ 抱负
★ 品味当下
最新
2020-12-21
2020-08-06
2020-07-31
2020-07-30
2020-07-30
2020-07-30