سه شنبه 26 اردیبهشت 1391 05:18 ب.ظ
|A herbarium is a collection of plant samples preserved for long-term study. These materials may include pressed and mounted plants, seeds, wood sections, pollen, microscope slides, frozen DNA extractions, and fluid-preserved flowers or fruits; all are generally referred to as herbarium specimens. Worldwide there are over 300 million specimens preserved for research in herbaria (plural for herbarium).|
Herbaria are usually associated with universities, museums, or botanical gardens. The first is believed to have been established in 1570 in Bologna, Italy, by Luca Ghini. There are now around 4,000 herbaria in over 165 countries. A world catalog of public herbaria, Index Herbariorum, is published periodically by the International Association for Plant Taxonomy and provided on the web at: http://sciweb.nybg.org/science2/IndexHerbariorum.asp. Each herbarium in Index Herbariorum is assigned an official acronym (code) that is used as a standard for referring to the institution and its specimens.
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