Mastering the Art of Pressing Plants- A Comprehensive Guide for Creating Perfect Herbarium Specimens

How to Press Plants for Herbarium

Herbarium, a collection of preserved plant specimens, is a valuable resource for botanists, ecologists, and researchers. Pressing plants for herbarium is an essential technique that allows for the long-term preservation of plant material. This article will guide you through the process of how to press plants for herbarium, ensuring that your specimens remain intact and well-preserved for future study.

Materials Needed

Before you begin pressing plants for herbarium, gather the following materials:

1. Plant specimens
2. Heavy-duty paper or newsprint
3. A flat, hard surface
4. A plant press or a heavy book
5. A ruler or a straight edge
6. A knife or a pair of scissors
7. A label or a piece of paper for recording the plant’s information

Step-by-Step Instructions

1.

Prepare the Plant Specimen

– Begin by selecting a healthy and intact plant specimen. If the plant is too large, trim it into smaller sections using a knife or scissors.
– Remove any dirt, leaves, or debris from the plant specimen to ensure a clean and accurate preservation.

2.

Mount the Specimen

– Place a piece of heavy-duty paper or newsprint on a flat, hard surface.
– Place the plant specimen on the paper, ensuring that it is lying flat and straight.
– Use a ruler or a straight edge to guide the placement of the plant, ensuring that it is centered and aligned.

3.

Secure the Specimen

– Once the plant is in place, cover it with another piece of heavy-duty paper or newsprint.
– Staple or tape the edges of the paper to secure the plant specimen in place.

4.

Press the Specimen

– Place the plant press or a heavy book on top of the stapled paper to apply pressure.
– Leave the plant to press for several days to a week, depending on the thickness and size of the specimen.
– Check the plant periodically to ensure that it is pressing evenly and that no parts are sticking out.

5.

Remove the Specimen

– After the pressing period, carefully remove the plant specimen from the paper.
– If necessary, trim any excess paper or stems using a knife or scissors.

6.

Label the Specimen

– Use a label or a piece of paper to record the plant’s information, such as its name, location, and date of collection.
– Attach the label to the back of the herbarium sheet containing the pressed plant specimen.

7.

Store the Specimen

– Store the herbarium sheet in a dry, cool environment to prevent mold and mildew growth.
– Maintain proper air circulation to prevent the accumulation of dust and debris.

By following these steps, you can successfully press plants for herbarium and contribute to the preservation of plant biodiversity for future generations. Happy pressing!