Typically, botanical gardens and arboreta must have a full-time scientific staff, an herbarium and library, and a catalogued collection of thousands of plants. Although botanical gardens and arboreta may also have a public viewing area, in which case they may be listed as well under Public Gardens, it is the presence of a viable research faculty using an herbarium or herbaria which distinguishes botanical gardens and arboreta from public gardens. This tends to make botanical gardens and arboreta larger in size and more dedicated to preservation of plant taxa than Public Gardens, however size or reputation are not the determining factors.
Sites providing information on the propagation of plants by cloning of small pieces of tissue, to generate whole plants, using growth medium, for subsequent transfer to nurseries or agricultural use, also known as micropropagation.
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If your site is about culture of plant cells, to express proteins and secrete natural products, rather than reproduce the entire organism, please submit to the Cell Culture category.
Where the plants have been used as the host for recombinant DNA of another species, such as in the production of non-glycosylated proteins, then the site should be submitted to a category linked in Biotechnology.