Method of making plant specimens

The making methods of plant specimens mainly include: collection and pruning, pressing and drying, binding and marking, and correct preservation.

1, get and trim

When choosing a good plant for making specimens, we should choose the plant with the most complete organ in the same plant. Prune plants, first remove dry leaves, then remove some branches that are too dense, and remove complex flowers, leaves and fruits to ensure that the specimens are in good condition.

2, pressing and drying

Prepare the specimen holder and absorbent paper, fold the plant specimen in half, and put the absorbent paper flat on the specimen holder. Before pressing the button, check the plant specimens and arrange them.

After the plant specimen is placed, fold the absorbent paper pair. Put a few more layers of absorbent paper on it, and you can put other plants, so that plants can be laid again and again. After treatment, tie the specimen clamp tightly with thick rope, press it on the heavy object, then put it in a well-ventilated place, and replace the absorbent paper several times. The specimen clamp is tied tightly with thick rope, and the weight is pressed down, and the absorbent paper is replaced many times.

3. Binding and marking

Put the dried specimen on the desk paper and bind it into a specimen. After processing, put a label under the desk paper for easy recording.

Step 4 stay right

After the production of plant specimens is completed, they should be properly preserved and put into specimen cabinets or specimen boxes in different categories. Put mothballs between specimens to prevent moths, and put them in a ventilated and dry place in rainy and humid seasons to avoid moldy specimens. When preserving plant specimens, strong light should be avoided, otherwise it will fade.

Plant specimens:

Making plant specimens is one of the powerful means to solve the problem of botany teaching AIDS. If there are live plants in classroom teaching, it will help students deepen their understanding. Using plant specimens can avoid the geographical and seasonal restrictions of some plants. At the same time, the shapes and colors of plants are preserved in plant specimens for further observation and research. A few plant specimens are also valuable for collection.

The most common plant specimen is wax leaf specimen. Wax leaf specimens are of great significance to plant classification, enabling botanists to check specimens collected from different regions all year round. Some large herbarium often collect more than one million wax leaf specimens, which botanists use for description and identification. /kloc-The rapid development of plant classification in the second half of the 6th century was largely driven by the new technology of wax leaf specimens.