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Current Trends in Science and Technology

an Open Access Publication ISSN: 0976-9730 | 0976-9498

Botany (Plant Science)

Nothotsuga lognibractatea :a vulnerable pine

Dr Teena agrawal
Nothotsuga lognibractatea :a vulnerable pine
Online First: February 14, 2018
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Abstract

Gymnosperms are the plants  of always of the great  values ,they are the trees without the fruit  ,seed appears directly on the ovuliferous scales , gymnosperms has the remarkable history and the evolution .Mesozoic era was the era of the gymnosperms , they are presented by the three liens of the evolution ,these are the cycadales and coniferales and the genatales .conifers are the abundant kinds of the gymnosperms ,they have the three families which have the large distribution ,like the cupprssaceae ,Podocarpaceae and the pianecae .Pinaceae are characterises by the long conifer trees with the  females and males cones ,commercially the females cones have the ouvuliferous scales .with the ovules on them .here in this review article we are presenting some of the aspects of the genus Nothotsuga longibracteata . This is common known as the Bristlecone hemlock.IUCN categories the genus as the vulnerable and some of the places of the china (native place) the population of the Nothotsuga are degrading so the trees need the conservation and propagation.

Keyword : Gymnosperms, Mesozaoic, degradation, propagation, conservation, native place.

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Feb 14, 2018
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Feb 14, 2018
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References

1) Arboretum de Villardebelle French Arboretum of conifers around the world 2) Gymnosperm Database – Pinaceae 3) Farjon, A. 2010. Conifer Database (June 2008). In: Species 2000 & ITIS Catalogue of Life: 2010 Annual Checklist (Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., eds). Reading, UK Available at: http://www.catalogueoflife.org/. 4) Farjon, A. 2010. A Handbook of the World's Conifers. Koninklijke Brill, Leiden. 5) Fu, L.K. and Jin, J.M. 1992. China Plant Red Data Book – Rare and Endangered Plants 1. Science Press, Beijing. 6) Hu, H.H. 1951. Lecture material on the Classification of Seed Plants [in Chinese]. 7) IUCN. 2013. IUCN Red List of Threatened Species (ver. 2013.1). Available at: http://www.iucnredlist.org. (Accessed: 12 June 2013). 8) Page, C.N. 1989. New and maintained genera in the Conifer families Podocarpaceae and Pinaceae. Notes of the Royal Botanic Garden Edinburgh 45(2): 377-395. 9) Wang, C.W. 1961. The forests of China with a survey of grassland and desert vegetation. Maria Moors Cabot Foundation, Harvard University, Cambridge, MA. 10) Wu, Z. and Raven, P.H. (eds). 1999. Flora of China: Vol.4. Cycadaceae through Fagaceae. Science Press (Beijing) & Missouri Botanical Garden (St. Louis). 11) Ying, T.S., Chen, M.L. and Chang, H.C. 2003. Atlas of the Gymnosperms of China. China Science & Technology Press, Beijing. 12) Nothotsuga longibracteata The gymnosperm databases. https://www.cnseed.org/nothotsuga-longibracteata-seed.html
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References

1) Arboretum de Villardebelle French Arboretum of conifers around the world
2) Gymnosperm Database – Pinaceae
3) Farjon, A. 2010. Conifer Database (June 2008). In: Species 2000 & ITIS Catalogue of Life: 2010 Annual Checklist (Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., eds). Reading, UK Available at: http://www.catalogueoflife.org/.
4) Farjon, A. 2010. A Handbook of the World's Conifers. Koninklijke Brill, Leiden.
5) Fu, L.K. and Jin, J.M. 1992. China Plant Red Data Book – Rare and Endangered Plants 1. Science Press, Beijing.
6) Hu, H.H. 1951. Lecture material on the Classification of Seed Plants [in Chinese].
7) IUCN. 2013. IUCN Red List of Threatened Species (ver. 2013.1). Available at: http://www.iucnredlist.org. (Accessed: 12 June 2013).
8) Page, C.N. 1989. New and maintained genera in the Conifer families Podocarpaceae and Pinaceae. Notes of the Royal Botanic Garden Edinburgh 45(2): 377-395.
9) Wang, C.W. 1961. The forests of China with a survey of grassland and desert vegetation. Maria Moors Cabot Foundation, Harvard University, Cambridge, MA.
10) Wu, Z. and Raven, P.H. (eds). 1999. Flora of China: Vol.4. Cycadaceae through Fagaceae. Science Press (Beijing) & Missouri Botanical Garden (St. Louis).
11) Ying, T.S., Chen, M.L. and Chang, H.C. 2003. Atlas of the Gymnosperms of China. China Science & Technology Press, Beijing.
12) Nothotsuga longibracteata The gymnosperm databases. https://www.cnseed.org/nothotsuga-longibracteata-seed.html
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