- Botanical Survey of India is actively engaged in the ex-situ conservation through its chain of Botanic gardens established in different regional circles. They are actively engaged in collection, introduction, multiplication and maintenance of germplasm of orchids, bamboos, palms, medicinal plants, legumes, ferns, wild edible plants, insectivorous plants, gymnosperms and other economically important plant species. Over 1,50,000 live plants belonging to c. 4,000 largely indigenous and highly valued economic exotic species are under cultivation including more than 200 species of endemic, rare and threatened category, some of which are included in the Appendix - I and Appendix - II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) such as - Renanthera imschootiana, Vanda coerulea, Paphiopedilum spp. Nepenthes kahasiana, Saussurea costus, Cycas beddomei, Bentinckia condapanna, B. nicobarica, Trachycarpus takil, Cypripedium spp., Eremostachys superba, , Taxus wallichiana, Myristica andamanica, Rauvolfia serpentina, Dioscorea deltoidea, Podophyllum hexandrum, Cyathea spp., Ceropegia spp., Frerea indica, Cephalotaxus mannii, etc.
- Mass multiplication of some of the rare and highly valued ornamental orchids like Paphiopedilum spp., Vanda coerulea, Dendrobium spp., Cymbidium spp., insect eating Nepenthes khasiana, medicinal plants like Clerodendrum colebrookianum, Panax pseudoginseng, Litsea cubeba, Aquilaria malaccensis and near extinct Eremostachys superba , through tissue culture has also been taken up successfully by Botanical Survey of India.
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