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Current Trends in Science and Technology

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

Botany (Plant Science)

Tsuga: an endangered genus

Dr Teena agarwal
Assistant professor, Banasthali University, niwai. Email id: tagrawal02@gmail.com
Online First: March 01, 2018
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Abstract

Gymnosperms are the plants of the great values; they have the good economic ach have not the as well as the evolutionary values. They are characterizes by the naked seed plants which have not the fruit around them .Reproduction occurs by the male and the female cones with the ovuliferous scales .IUCN categorized majority of the gymnosperms as the critically- endangered since these groups are degrading due to the habitat destructions and the logging of the trees for the various purposes. Here we are describing some of the features of the conifers entitled as the Tsuga as an endangered genus with the 11 species all over the globe .The genus represents the all the features of the conifers and now by the IUCN categorization the genus has been declared as the endangered by the version 3.1, so the genus is need the conservation   and the propagations.

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Mar 1, 2018
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Mar 1, 2018
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References

1. Katsuki, T. & Luscombe, D. 2013. Tsuga sieboldii. The IUCN Red List of Threatened Species 2013: e.T191663A1991616. http://dx.doi.org/10.2305 2. Farjon, A. 2013. Tsuga mertensiana. The IUCN Red List of Threatened Species2013: e.T42436A2980162. 3 http://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T42436A2980162.en. 3. 4. Yang, Y. & Luscombe, D. 2013. Tsuga forrestii. The IUCN Red List of Threatened Species 2013: e.T32457A2819347. http://dx.doi.org/10.2305 5. Taylor, R. J. (1993). "Tsuga". Flora of North America North of Mexico, Vol. 2. Oxford University Press. Retrieved 2007-05-16. 6. Farjon, A. (1990). Pinaceae. Drawings and Descriptions of the Genera. Koeltz Scientific Books ISBN 3-87429-298-3. 7. Earle, C. J. (2006). "Tsuga". Gymnosperm Database. Retrieved 2007-05-16. 8. Wu, Z.-Y., & Raven, P. H. (1999). "Tsuga". Flora of China. Beijing: Science Press. Retrieved 2007-05-16. 9. United States Forest Service: Hemlock Woolly Adelgid website Gymnosperm Database – Pinaceae www.thefloweringgarden.com/
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References

1. Katsuki, T. & Luscombe, D. 2013. Tsuga sieboldii. The IUCN Red List of Threatened Species 2013: e.T191663A1991616. http://dx.doi.org/10.2305
2. Farjon, A. 2013. Tsuga mertensiana. The IUCN Red List of Threatened Species2013: e.T42436A2980162. 3 http://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T42436A2980162.en.

3. 4. Yang, Y. & Luscombe, D. 2013. Tsuga forrestii. The IUCN Red List of Threatened Species 2013: e.T32457A2819347. http://dx.doi.org/10.2305

5. Taylor, R. J. (1993). "Tsuga". Flora of North America North of Mexico, Vol. 2. Oxford University Press. Retrieved 2007-05-16.
6. Farjon, A. (1990). Pinaceae. Drawings and Descriptions of the Genera. Koeltz Scientific Books ISBN 3-87429-298-3.
7. Earle, C. J. (2006). "Tsuga". Gymnosperm Database. Retrieved 2007-05-16.
8. Wu, Z.-Y., & Raven, P. H. (1999). "Tsuga". Flora of China. Beijing: Science Press. Retrieved 2007-05-16.
9. United States Forest Service: Hemlock Woolly Adelgid website Gymnosperm Database – Pinaceae www.thefloweringgarden.com/
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