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Table 10 Age, number of species and number of uses mentioned by men of Aramberri, Nuevo León and the Spearman’s rank correlation coefficient ( r s )

From: Medicinal plants in the southern region of the State of Nuevo León, México

Age Number of species Number of uses
45 4 5
48 20 23
55 54 95
55 54 67
60 13 16
64 33 38
72 31 34
74 33 39
77 4 4
90 19 23
  r s = 0.09, α = 0.05 r s = 0.1 α = 0.05