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2. Amanzadeh, B., Pourmajidian, M.R., Rahmani, A. and Moradi, A. 2013. Comparison of flora, life forms and chorology in the two untouched and degraded sites in Beech forests (Case study: Shafaroud forests. Guilan, Iran). – Int. J. Forest Soil and Erosion 3: 1-6.
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14. Fatemi Talab, S.R., Mataji, A. and Babai Kafaki, S. 2012. Determination of stand dynamic and its relationship with understory biodiversity in managed and unmanaged stands of Beech forests (Case study: Safarud forest). – Iran. J. Forest 4: 277-287.
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18. Gilliam, F.S. 2014. The herbaceous layer in forests of east-ern North America. – Oxford University Press, New York, 658 pp.
19. Hamzeh'ee, B., Naqinezhad, A., Attar, F., Ghahreman, A., Assadi, M. and Prieditis, N. 2008. Phytosociological survey of remnant Alnus glutinosa ssp. barbata commun-ities in the lowland Caspian forests of northern Iran. – Phytocoenologia 38: 117-132.
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23. Muesel, H., Jäger, E. and Weinert, E. 1965. Vergleichende Chorologie der zentraleuropäisechen Flora. – Band I. Gustav Fischer Verlag. Jena.
24. Naqinezhad, A., Hosseini, S., Rajamand, M.A. and Saeidi Mehrvarz, S. 2010. A floristic study on Mazibon and Si-bon protected forests, Ramsar, across the altitudinal gr-adient (300–2300 m). – Taxon. Biosyst. 5: 93-114.
25. Naqinezhad, A., Zare-Maivan, H. and Gholizadeh, H. 2015. A floristic survey of the Hyrcanian forests in Northern Iran, using two lowland-mountain transect. – J. For. Res. 26: 187-199.
26. Neilson, R.P. 1993. Transient ecotone response to climatic change; some and modelling approaches. – Ecol. Appl. 3: 385-395.
27. Økland, R.H., Rydgren, K. and Økland, T. 2008. Species richness in boreal swamp forests of SE Norway: The role of surface microtopography. – J. Veg. Sci. 19: 67-74.
28. Raunkiaer, C. 1934. The life forms of plants and statistical plant geography. – Charendon Press, Oxford.
29. Rechinger, K.H. (ed.). 1963-2015. Flora Iranica. – Akad. Dr-uck- und Verlagsanstalt, Graz.
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31. Siadati, S., Moradi, H., Attar, F., Etemad, V., Hamzeh’ee, B. and Naqinezhad, A. 2010. Botanical diversity of Hyrc-anian forests; a case study of a transect in the Kheyrud protected lowland mountain forests in northern Iran. – Phytotaxa 7: 1-18.
32. Taati, S., Rahmani, R., Sagheb-Talebi, Kh., Matinizadeh, M. and Habashi, H. 2015. Influence of gap creation on soil enzymes activity in an oriental beech stand (Case study: Langa control plot). – Iran. J. For. Popl. Res. 23: 332-341.
33. Takhtajan, A. 1986. Floristic regions of the World. – University of California Press, Berkeley.
34. Versteraeten, G., Baeten, L., De Frenne, P., Thomaes, A., Demey, A., Muys, B. and Verheyen, K. 2014. Forest herbs show species-specific responses to variation inlight regime on sites with contrasting soil acidity: anexper-iment mimicking forest conversion scenarios. – Basic Appl. Ecol. 15: 316-325.
35. Zohary, M. 1973. Geobotanical foundations of the Middle East. 2 vols. – Fischer Verlag, Stuttgart, Amsterdam, 739 pp.
37. Akhani, H., Djamali, M., Ghorbanalizadeh, A. and Rame-zani, E. 2010. Plant biodiversity of Hyrcanian relict forests, N Iran: an overview of the flora, vegetation, palaeoecology and conservation. – Pak. J. Bot. 42: 231-258.
38. Amanzadeh, B., Pourmajidian, M.R., Rahmani, A. and Moradi, A. 2013. Comparison of flora, life forms and chorology in the two untouched and degraded sites in Beech forests (Case study: Shafaroud forests. Guilan, Iran). – Int. J. Forest Soil and Erosion 3: 1-6.
39. Archibold, O.W. 1995. Ecology of world vegetation. – Chapman & Hall. Press, London, 510 pp.
40. Assadi, M. (ed.). 1989-2016. Flora of Iran 1-85. – RIFR, Tehran.
41. Austin, M.P., Nicholls, A.O. and Margules, C.R. 1990. Me-asurement of the realised qualitative niche: environmental niches of five Eucalyptus species. – Ecol. Monogr. 60: 161-177. [
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44. Davis, P.H. 1965–1988. Flora of Turkey and East Aegean Islands. – Edinburgh University Press, Edinburgh.
45. Denk, T., Grimm, G., Stögerer, K., Langer, M. and Heml-eben, V. 2002. The evolutionary history of Fagus in we-stern Eurasia: evidence from genes, morphology and the fossil record. – Plant Syst. Evol. 232: 213-236. [
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46. Ejtehadi, H., Zare, H., Amini Eshkevari, T. and Atashgahi, Z. 2015. A study of tree species diversity and flora in different altitudes and slopes of the Shirinrood river valley, Mazandaran, Iran. – Taxon. Biosyst. 25: 39-52.
47. Eshaghi Rad, J., Zahedi Amiri, Gh., Marvi Mohajer, M.R. and Mataji, A. 2009. Relationship between vegetation and physical and chemical properties of soil in Fagetum communities (Case study: Kheiroudkenar forest). – Iran. J. For. Popl. Res. 17: 174-187.
48. Esmailzadeh, O., Hosseini, M., Mesdaghi, M., Tabari, M. and Mohammadi, J. 2010. Can soil seed bank floristic data describe above ground vegetation plant communities? – Environ. Sci. 7: 41-62.
49. Esmailzadeh, O., Nourmohammadi, K., Asadi, H. and Yousefzadeh, H. 2014. A floristic study of Salahedd-inkola forests, Nowshahr, Iran. – Taxon. Biosyst. 19: 37-54.
50. Fatemi Talab, S.R., Mataji, A. and Babai Kafaki, S. 2012. Determination of stand dynamic and its relationship with understory biodiversity in managed and unmanaged stands of Beech forests (Case study: Safarud forest). – Iran. J. Forest 4: 277-287.
51. Frey, W. and Probst, W. 1986. A synopsis of the vegetation of Iran. – In: Kürschner, H. (ed.), Contribution of the vegetation of southwest Asia, 1-43. Dr. Ludwig Reichert. Wiesbaden.
52. Ghahremaninejad, F. and Nejad Falatoury, A. 2016. An update on the flora of Iran: Iranian angiosperm orders and families in accordance with APG IV. – Nova Biol-ogica Rep. 3: 80-107. [
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53. Gilliam, F.S. 2014. The herbaceous layer in forests of east-ern North America. – Oxford University Press, New York, 658 pp. [
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55. Khoshravesh, R., Akhani, H., Eskandari, M. and Greuter, W. 2009. Ferns and fern allies of Iran. – Rostaniha 10 (Supplement 1).
56. Léonard, J. 1989. Contribution a l\'etude de la flore et de la vegetation des deserts d\'Iran, vol 9. – Jardin Botanique National de Belgique, Meise.
57. Moradi, H., Naqinezhad, A., Siadati, S., Yousefi, Y., Attar, F., Etemad, V. and Reif, A. 2016. Elevational gradient and vegetation-environmental relationships in the central Hyrcanian forests of northern Iran. – Nord. J. Bot. 34: 1-14. [
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60. Naqinezhad, A., Zare-Maivan, H. and Gholizadeh, H. 2015. A floristic survey of the Hyrcanian forests in Northern Iran, using two lowland-mountain transect. – J. For. Res. 26: 187-199. [
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63. Raunkiaer, C. 1934. The life forms of plants and statistical plant geography. – Charendon Press, Oxford.
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65. Sagheb-Talebi K., Sajedi, T. and Pourhashemi, M. 2014. Forests of Iran- a treasure from the past, a hope for the future. – Springer, Dordrecht Heidelberg New York London, 152 pp.
66. Siadati, S., Moradi, H., Attar, F., Etemad, V., Hamzeh\'ee, B. and Naqinezhad, A. 2010. Botanical diversity of Hyrc-anian forests; a case study of a transect in the Kheyrud protected lowland mountain forests in northern Iran. – Phytotaxa 7: 1-18.
67. Taati, S., Rahmani, R., Sagheb-Talebi, Kh., Matinizadeh, M. and Habashi, H. 2015. Influence of gap creation on soil enzymes activity in an oriental beech stand (Case study: Langa control plot). – Iran. J. For. Popl. Res. 23: 332-341.
68. Takhtajan, A. 1986. Floristic regions of the World. – University of California Press, Berkeley.
69. Versteraeten, G., Baeten, L., De Frenne, P., Thomaes, A., Demey, A., Muys, B. and Verheyen, K. 2014. Forest herbs show species-specific responses to variation inlight regime on sites with contrasting soil acidity: anexper-iment mimicking forest conversion scenarios. – Basic Appl. Ecol. 15: 316-325. [
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