"Osmanthus" is the most significant species in China. Globally, there are 32 species of Osmanthus, and 27 of them are found in China. As a member of the genus Osmanthus, China is also recognized as the center of distribution for this plant family. The cultivation of osmanthus has a history of over 2,000 years, and it is the country with the greatest diversity of sweet-scented osmanthus varieties in the world. More than 100 cultivars have been identified, including many rare and unique types. One of these is the "Chinese Longgui," a remarkable variety that stands out for its natural beauty and symbolic meaning.
Is the growth of the laurel tree a coincidence? Or is it a natural design?
The *Osmanthus fragrans* cv. *Zhonghualonggui* is a shrub that typically reaches about 3 meters in height. It grows vigorously, with branches that naturally curve to form a "wandering dragon." Its leaves are long and elliptical, averaging 8.2 cm in length and 2.9 cm in width. The leaf tips are pointed and slightly curled backward. The edges are serrated, and the base is wedge-shaped. New shoots appear reddish-purple, and after turning green, the petioles become purple. Mature petioles take on a purple-green color. The buds are light green, and the flowers are yellow-white (Figure 1, top left). This variety produces a large number of blossoms, but what truly sets it apart is its strong, intoxicating fragrance.
China is not only the birthplace of sweet-scented osmanthus but also the home of the "dragon." In Chinese culture, the dragon symbolizes power, authority, prosperity, and hope. What makes this variety even more fascinating is that it was naturally formed on Chinese soil, giving it deep and mysterious significance.
Art is a human creation, but nature can be equally creative. Chinese people have developed various styles in bonsai art, such as the Yang School, Su School, and Chuan School. These schools emphasize specific techniques, like the "three branches with one bend" or the "three bends with nine bends." No matter the style, the key element is the artificial shaping of the branches. A successful bonsai requires artistic vision, patience, and skill, often taking years or even decades to complete. In contrast, the "Chinese Longgui" doesn’t need artificial bending—it naturally forms a graceful curve, resembling a "driving dragon" (Figure 1, two-and-a-half-year-old tree). This natural elegance makes it a unique and charming art piece.
Nature itself is a genius. The "Spring Longgui" sprouts grow and develop in a special way. After lignification, the tender purple shoots, which are 10–15 cm long, begin to soften and droop. The lower part of the buds turns white, and the tops grow upward in the opposite direction (Figure 2). Over time, the shoots turn green, and the color changes from white to gray-brown as they lignify, forming a natural "dragon body." Near the turning point, new shoots emerge, creating a second "dragon" (Figure 4). Some branches develop multiple bends, and over the years, the leaves fall off, revealing a "naked dragon" (Figure 5). After four years, the "Chinese Longgui" displays a wide range of dragon-like shapes—some resemble "Longling," others look like "dwarfs" with "red heads," and some are like "Jackie Chan" or "Laolong." From different angles, you can see dragons reaching toward the sky, looking down, or running into the sea. Each tree has its own unique character, making every "Longhua" a masterpiece of nature.
Of course, enthusiasts can still use pruning and shaping to add their personal touch and make the trees even more expressive and personalized.
Recently, we discovered a new mutation in the "Chinese Dragon"—a golden shoot variant. Its other biological features are similar to the original, and we are still observing its development. For now, we call it the "Golden Dragon," while the original with purple shoots is called the "Red Dragon." This discovery highlights how organisms maintain stability while also showing variation and diversity, reflecting the "genius" of nature and the wonder of the natural world.
China holds great promise. The extraordinary "Chinese Longgui" is a breed full of potential, and its future looks very bright.
Hematology Analyzer
Hematology analyzer is also called clinical blood cell analyzer, blood cell analyzer, blood cell analyzer, blood cell counter. The blood analyzer not only improves the accuracy of the experimental results, but also provides many experimental indicators, which play an important role in the diagnosis and differential diagnosis of diseases. Hematology analyzer is one of the most widely used instruments in hospital clinical testing.
Test items
Blood cell test refers to routine blood test, which is manual operation and counting under the microscope at first. It includes red blood cell, hemoglobin, white blood cell count and its classification, platelet count, etc. There are more than 20 items.
clinical significance
1. The blood analyzer is mainly used to detect various blood cell counts, white blood cell classification and hemoglobin content.
2. Hematocrit: obtained by multiplying the average volume of red blood cells by the red blood cell count.
3. Red blood cell distribution width: represents the degree of consistency of red blood cell size. When the red blood cell size is uneven, the red blood cell distribution width value increases, such as various types of nutritional deficiency anemia.
4. The three average indices of red blood cells are used to identify the type of anemia.
(1) The average hemoglobin content of red blood cells: increased in megaloblastic anemia, decreased in iron deficiency anemia, chronic blood loss anemia, uremia, chronic inflammation.
(2) Mean volume of red blood cells: increase in hemolytic anemia and megaloblastic anemia; decrease in severe iron deficiency anemia and hereditary spherocytosis.
(3) The average red blood cell hemoglobin concentration: decrease in chronic blood loss anemia, iron deficiency anemia; various diseases can be in the normal range. In megaloblastic anemia, the mean red blood cell volume increases, the mean red blood cell hemoglobin amount increases, the mean red blood cell hemoglobin concentration is normal, and the red blood cell distribution width increases.
5. Average platelet volume: the average volume of each platelet, the size of platelets is related to its function.
(1) Increased: seen in patients with idiopathic thrombocytopenic purpura, edema and proteinuria in late pregnancy.
(2) Decreased: seen in non-immune platelet destruction, aplastic anemia, thrombocytopenia repeated infection syndrome, chronic myeloid leukemia, etc.
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