DENDROLOGY

Detailed explanation-1: -Herbarium specimens will last for hundreds of years if properly cared for. The best conditions for storage include low temperature (from 50–65ºF), low humidity, low light, and infrequent handling.

Detailed explanation-2: -You can dry several plants in the press at one time. Each should be arranged in the same layers as described above. Check the plants every two or three days, and replace the damp papers with dry ones. It will take from two to four weeks before the specimens are completely dry.