distichous

简明释义

英[ˈdɪstɪkəs]美[ˈdɪstɪkəs]

adj. 二列的；二分的

英英释义

单词用法

同义词

反义词

例句

1.They are closely arranged on the stem alternately on distichous sides.

它们紧密地排列在茎上，交替地分布在茎的两侧。

2.They are closely arranged on the stem alternately on distichous sides.

它们紧密地排列在茎上，交替地分布在茎的两侧。

3.The leaves of the plant are arranged in a distichous 二列的 pattern, allowing for maximum sunlight exposure.

这种植物的叶子以distichous 二列的方式排列，以便最大限度地接受阳光。

4.In botany, a distichous 二列的 arrangement can be found in many grass species.

在植物学中，许多草本植物都有distichous 二列的排列。

5.The distichous 二列的 leaves of this fern create a unique aesthetic appeal.

这种蕨类植物的distichous 二列的叶子创造了独特的美感。

6.A distichous 二列的 leaf arrangement is often seen in the family of ferns known as Aspleniaceae.

在蕨类植物的Aspleniaceae科中，常见distichous 二列的叶子排列。

7.The distichous 二列的 growth habit of this species allows it to thrive in dense forests.

这种物种的distichous 二列的生长习性使其能够在密林中茁壮成长。

作文

In the world of botany, understanding plant structures can lead to a deeper appreciation of nature's design. One such structural arrangement is known as distichous (对生的). This term refers to a specific pattern in which leaves or branches are arranged in two vertical rows on opposite sides of a stem. This fascinating growth habit can be observed in various species, including some types of grasses and certain trees. The distichous arrangement not only affects the aesthetic appeal of a plant but also plays a crucial role in its survival and efficiency in photosynthesis. The distichous configuration allows for optimal light exposure, as leaves are positioned to capture sunlight without overlapping too much. This is particularly important in dense forests where competition for light is fierce. By having leaves arranged in two distinct rows, plants can maximize their light absorption while minimizing shade cast on adjacent leaves. This adaptation is essential for their growth and reproduction, providing them with an advantage over competitors that do not have this arrangement. Moreover, the distichous pattern can influence water drainage and air circulation around the plant. With leaves positioned in a staggered manner, rainwater can flow more freely down the stem without pooling at the base. This drainage is vital for preventing rot and other water-related diseases. Additionally, better air circulation helps reduce humidity around the foliage, further protecting the plant from fungal infections. In horticulture, understanding the distichous nature of certain plants can assist gardeners and landscapers in designing more effective planting arrangements. For instance, when planting distichous species, one might consider their spacing and orientation to ensure each plant receives adequate sunlight and airflow. This knowledge can lead to healthier plants and more vibrant gardens. Furthermore, the concept of distichous growth is not limited to just leaves and branches; it can also be observed in the arrangement of flowers. Some flowering plants exhibit a distichous pattern in their floral structures, which can enhance pollination efficiency. By arranging flowers in two rows, these plants can attract pollinators more effectively, ensuring their reproductive success. In conclusion, the term distichous (对生的) encompasses a remarkable aspect of plant morphology that has significant implications for a plant's survival, growth, and reproduction. By studying and appreciating this unique arrangement, we can gain insights into the intricate relationships between plants and their environments. Whether you are a botanist, a gardener, or simply an admirer of nature, recognizing the importance of distichous arrangements can enhance your understanding of the natural world and inspire a greater respect for the diversity of plant life around us.