3, dodder, mistletoe, ginger, taro, orchids and pine, cedar, cypress and other plants, tend to suppress the 1 to 2 months after the manufacturer of herbarium specimens, cells do not die, resulting in leaves, flowers fall off. These specimens, we need hot moments in boiling water, and then kill the cell voltage. Some specimens were easily broken, such as Kapok petals, after gathering place for a long time, Henan herbarium specimens, or fumigation with steam for a moment, and then pressed to soften the tissue herbarium specimens, the better. 4, specimens should be placed with the wrong attention from beginning to end, in order to maintain the entire stack of specimens balance, even by force, without dumping. Some specimens of flowers, fruit coarse, often pressing the paper raised, wrinkled leaves due to less pressure, this can be used several sheets of paper folded into a pad of paper, surrounded by a raised pad, or the larger Under section cut dried separately, but pay attention to the same number of collection hang tag. Specimens longer, can be folded into "V" or K "N" shape. 5, for the timely exchange of paper paper, is a key step in relation to the quality of the specimen. Also note that the specimen must be covered with toilet paper when the end to mutual exchange, so that the wood specimens and toilet paper clip neatly inside the flat. When such overlap to a considerable height, which ends with a rope tied tightly clamp the specimen. The new pressure to change paper samples a day for at least 1-2 times a dry paper. These dry paper is best after the sun or fire rearward slightly warm as well, with its heat can dry process plant specimens gradually increased, when changing the paper must be done the following: (1) when the initial change paper part of the leaf samples to flip on opening herbarium specimens, so that there are two kinds of leaves on the ventral and back specimens, such as dry leaves will flip is easy to break. Then if deemed too dense foliage specimens can cut part of the appropriate sparse. (2) the initial change to the attention of the overburden pressure of note paper, overlapping leaves and flowers carefully open, then the key pressed specimen of good or bad, must pay attention to. Luoyang herbarium specimens, voyage teaching (certified), herbarium specimens provided by Xinxiang City Teaching Equipment Co. voyage. Xinxiang City voyage Teaching Equipment Co. (www.xxyuanhang.cn) is an industry leader in Henan Xinxiang, specimen model years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. On the voyage instructional leadership with the staff warmly welcome all inquiries negotiations to create a better future teaching voyage.