The method of making plant specimens is simple, and the steps of making plant specimens

Look for a complete plant, preferably with rhizomes, leaves, flowers, fruits, and seeds.

Wash the plants and remove the dead leaves, spread the plants on A4 paper, and cover with another sheet of A4 paper.

Move the specimen into the newspaper and nail the two openings in the newspaper.

The whole plant or part of the plant often needs to be preserved for a long time for teaching, scientific research, display and other purposes, and to achieve this purpose, it is necessary to soak the plant specimen in a certain pharmaceutical solution. Specimens made by soaking in a chemical solution are called impregnated specimens.

The most common of the plant specimens is the wax leaf specimen.

Leaf specimens, also known as pressed specimens, are usually made of fresh plant material pressed with absorbent paper to dry and then bound on white hard paper (this paper is called table paper).

Leaf specimens are of great significance for plant taxonomy, as they allow botanists to search for specimens from different regions throughout the year. At present, some large herbariums often have more than one million herbariums, and botanists use these specimens to describe and identify. The rapid development of plant taxonomy in the second half of the 16th century was largely facilitated by the new technique of herbarium specimens.

The significance of leaf specimens is not limited to the study of plant taxonomy, and the collection and production of leaf specimens are more out of a perception of nature and life in the eyes of ordinary people, and out of a naturalist tradition and complex. Of course, the beauty of the leaf specimen itself is also an important aspect.

The production of ordinary plant specimens is generally not very particular about aesthetics, and does not pay much attention to the preservation of color. However, if it is used as a plant specimen for popular science exhibitions, or as a plant specimen for decoration, in the process of production, there will be more attention to whether the specimen is flat, beautiful, and how to maintain the color.

The method of making plant specimens is as follows:

Raw materials Tools: flowers, photo frames, glue, paper.

Step 1: Treat the flowers and plants.

Homemade specimens of flowers and plants first need to be treated for better preservation. When you collect fresh flowers and plants, you first need to prune them, cut off dead branches and rotten leaves and incomplete flowers, try to ensure the integrity of the flowers and plants, make the finished product beautiful, and then clean them.

Step 2: Pressing the specimen.

Pressing the specimen is to make the specimen dry and level faster. Place the specimen on non-staining absorbent paper or newspaper, noting that the paper needs to be overlapped in multiple layers so that the specimen can be more flat. Then spread multiple layers of paper on top of the specimen, clip the specimen clip, press the heavy object, change the paper frequently in the first few days, and remove the binding after the specimen becomes brittle.

Step 3: Binding.

Staple the specimen on A4 paper or other paper books, you can use glue or tape to carefully glue it, or you can use the photo overmolding method to overmold it, which can better waterproof, anti-breakage, and effectively extend the storage time.

Step 4: Storage.

Bound specimens should be placed reasonably to prevent mold and insect damage and affect the viewing. When storing, it should be placed in a cool and ventilated place away from direct sunlight, which can cause the specimen to fade. It is also necessary to check regularly whether there is insect moth or mildew, and if it is found, it should be dealt with in time, which is conducive to the long-term preservation of specimens.

The significance of plant specimens

Plant specimens are of great significance for plant taxonomy. Botanists can look up plants from different regions through specimens. Some large herbariums often hold more than a million herbariums, which botanists use to describe and identify plants.

As a new technology in the second half of the 16th century, plant specimens contributed to the rapid development of the classification of plant late objects at that time.

1. First of all, look for a complete plant, preferably with rhizomes, leaves, flowers, fruits and seeds at the same time, and the overall size of the plant does not exceed the size of A4 paper.

2. Carefully clean the sludge of the plant body, then remove the dead leaves, spread the plant on A4 paper, and then cover another A4 paper.

3. Carefully move the specimen into the newspaper, and then nail the openings in both places of the newspaper.

4. Place the newspaper with specimens in a cool place, and then put a few newspapers, press the whole stack of specimens with wooden boards and heavy objects to help the specimens dry and form, after 5 days, you can open the newspaper to see if the specimen is formed, if it has not been formed, you can continue to place it for a few days, and then open it.

When making plant specimens, try to select plants with less water content, easy to dry, and not easy to deform after drying, and can use vacuum drying, freeze drying, microwave drying, silica gel drying and absorbent paper pressing and other physical methods for forced dehydration, or you can first carry out the necessary chemical treatment, and then dehydrate and dry.

Herbarium is a method of preserving plant samples and information, and is often used in scientific research and teaching. Here are the main steps to make a plant specimen:

Collect plants: Choose healthy, intact plants, preferably during the flowering and fruiting stage, and record the location and date of collection.

Prepare materials: Prepare tools and materials such as specimen paper, labels, pens, desiccant (e.g., silicone), oven, etc.

Treat plants: Wash off the soil, Kunxiao insect Yinqiaoxiang and other attachments, cut off the roots and excess parts, and keep the parts that need to be displayed.

Laying the specimen paper: Lay the specimen paper flat, place the plants on the paper, and adjust the position and orientation.

Fill in the label: Fill in the information such as the Latin scientific name of the plant, the name of the collector and the date of collection on the label, and paste it on the specimen paper.

Drying: The specimen is placed in an oven for drying, depending on the size and humidity of the plant.