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TABLE 1. Wood anatomical characters related to climatic variables and codification criteria for each one (Martínez-Cabrera et al., 2008).

Character Codification criteria
1.- Growth rings Present (1)/Absent (0)
2.- Vessel grouping Vessel clusters (2,3,>4) proportion
3.- Vessel frequency Number of vessels per square millimeter
4.- Vessel diameter Diameter in μm
5.- Vessel wall thickness Thickeness wall in μm
6.- Helical sculpture Present (1)/Absent (0)
7.- Intervascular pit apertura diameter Diameter in μm
8.- Alternate intervessel pits Present (1)/Absent (0)
9-. Opposite intervessel pits Present (1)/Absent (0)
10.- Scalariform intervessel pits Present (1)/Absent (0)
11.- Simple perforation plates Present (1)/Absent (0)
12.- Scalariform perforation plates Present (1)/Absent (0)
13.- Fibre wall thickness (μm) Thickeness wall in μm
14.- Fibre lumen diameter (μm) Lumen diameter (μm)
15.- Tracheids Present (1)/Absent (0)
16.- Fibrotracheids Present (1)/Absent (0)
17.- Libriform fibres Present (1)/Absent (0)
18.- Parechyma diffuse in aggregates Present (1)/Absent (0)
19.- Vasicentric parenchyma Present (1)/Absent (0)
20.- Aliform parenchyma Present (1)/Absent (0)
21.- Apotracheal parenchyma bands Present (1)/Absent (0)
22.- Concentric parenchyma bands Present (1)/Absent (0)
23.- Marginal parenchyma Present (1)/Absent (0)
24.- Height of uniseriate ray Height in μm
25.- Height of uniseriate ray Number of cells
26.- Percentage of uniseriate rays Percentage of uniseriate rays
27.- Exclusively uniseriate rays Present (1)/Absent (0)
28.- Width of multiseriate ray Width in μm
29.- Width of multiseriate ray Number of cells
30.- Length of uniseriate extensions (μm) Length in μm
31.- Length of uniseriate extensions (nº cells) Number of cells
32.- Storied structure Present (1)/Absent (0)
33.- Heterocellular rays Present (1)/Absent (0)
34.- Homocellular rays Present (1)/Absent (0)

 

 

TABLE 2. Tracheal characteristics and codification criteria for each one (Carlquist and Hoekman, 1985).

Character Codification criteria
1.- Vessels per square millimeter (Vmm2) Number of vessels per square millimeter
2.- Mean vessel diameter (VD) Diameter in μm
3.- Mean vessel lenght (VL) Length in μm
4.- Mean vessel grouping (VG) Vessel clusters (2,3,>4) proportion
5.- Mean number of bars per perforation plate (BAR) Number of bars
6.- Tracheid proportion (T) Present (1)/Absent (0)
7.- Proportion of helical sculpture (latewood+early wood proportions) (SE) Present (1)/Absent (0)
8.- Growth rings (GR) Present (1)/Absent (0)
9-. Mesomorphy index (Meso) Vessel diameter ÷ Number of vessels per square millimeter

 

 

TABLE 3. Equations obtained by Martínez-Cabrera et al, (2008) for the variables MAT (mean annual temperature), MART (mean annual range of temperature), MAPE (mean annual potential evaporation), MARPE (mean annual range of potential evaporation), Max PE (maximum potential evaporation) and Min PE (Minimum potential evaporation) and climatic estimations for Tehuacán Fm.

Climatic
Variable
  Equation Estimation
MAT 1 27 - 0.42 (pit diameter) + 2.94 (apotracheal bands) - 33.88 (scalariform pits) 24.9 °C
2 29.9 - 32.85 (scalariform pits) - 0.75 (pit diameter) 25.2 °C
3 23.53 - 31.33 (scalariform pits) + 6.11 (apotracheal bands) 24.6 °C
MART 4 2.026 + 0.907 (pit diameter) + 1.37 (apotracheal bands) - 0.867 (fiber wall) 5.5 °C
5 2.91 + .889 (pit diameter) - 1.01 (fiber wall) 4.6 °C
MAPE 6 -1473.5 + 1228 (vessel grouping) + (vessel/mm2) 936.7 mm
MARPE 7 -134.4 + 121.86 (vessel grouping) 78.4 mm
Max PE 8 144.467 + 2.58 (vessel/mm2) - 0.25 (cells height of uniseriate rays) 169.9 mm
Min PE 9 15.849 + 2.54 (vessel/mm2) 42.51 mm

 

 

TABLE 4. Data for the nine tracheal characteristics. * Carlquist y Hoekman, 1985, ** Martínez-Cabrera et al., 2008, *** Castañeda-Posadas, 2007. Vmm2 = vessels per square millimeter; VD= mean vessel diameter (μm); VL= mean vessel length (μm); VG= mean vessel grouping; BAR= mean number of bars per perforation plate; T= tracheid proportion; SE= proportion of helical sculpture (latewood + early wood proportions); GR= growing rings; MESO= mesomorphy index.

Community / ecological category Vmm2 VD VL VG BAR T SE GR MESO
Riparian* 163 50.7 418 1.77 6.7 37.5 12.5 56.3 253
Moist* 198 36.6 338 4.62 4.1 30 20 75 106
Chaparral* 299 29.2 261 4.76 0.12 24.4 54.9 62.2 66.7
Coastal sage* 212 34.5 188 7.55 0 6.06 42.45 62.2 80.7
Alpine* 442 20.9 266 2.53 4.7 58.3 29.15 75 27.1
Desert scrub* 361 25.9 190 2.62 0 40 44 80 20.9
Desert wash* 148 42.2 185 3.61 0 11.8 26.45 70.6 139
Succulents* 44.6 57.5 245 1.84 0 0 0 66.7 368
Halophytes* 58 29 100 2.6 0 0 12.5 50 25.8
Woodland* 19.3 77.8 454 1.15 0 0 0 50 1950
Mountain forest** 34.7 75.6 824 1.66 20.6 22.2 23.3 18.33 3512
Tropical deciduous forest** 32.8 87.5 322 1.89 0 0.16 0 22.31 2811
Los Tuxtlas** 13.2 120.8 635 1.79 0.53 0 0 6.67 13768
Tafelberg** 13.9 90.8 577 1.55 0.24 0 8 4 6913
Porto Velho** 13.6 104.6 477 1.56 0 0 4 0 8127
Manaus** 9.5 107.5 540 1.65 1.2 0 0 6 12355
El Cien** 16.24 126.7 313 1.49 0 0 0 18.18 5948
Tropical semi-deciduous forest*** 11.6 143.7 345 1.65 0.01 0.29 0 0 4269
Xeric shrubland*** 37.1 101.6 340 2.56 0 0.8 0 0 932
Tehuacán Formation 10.5 171.3 344 1.74 0 0 0 19.9 6451

 

 

TABLE 5. Euclidean distance values of the paleoflora of the Tehuacán Fm. compared with the rest of the communities.

Communities Tehuacán Formation
Tropical deciduous forest 7.91
Los Tuxtlas 9.31
Portovelho 8.79
Tafelberg 9.84
Manaus 9.49
Mountain forest 12.33
Tropical semi-deciduous forest 8.41
Xeric shrubland 8.48
El Cien 8.14

 

 

TABLE 6. Euclidean distance values of the paleoflora of the Tehuacán Fm. and the rest of the communities and ecological categories.

Communities Tehuacán Formation
Riparian 4.62
Moist 5.34
Chaparral 5.94
Coastal sage 5.45
Alpine 7.24
Desert scrub 6.59
Desert wash 4.70
Succulents 2.94
Halophytes 4.94
Woodland 2.78
Mountain forest 4.92
Tropical deciduous forest 2.14
Los Tuxtlas 2.71
Tafelberg 2.60
Porto Velho 2.28
Manaus 2.66
El Cien 1.44
Tropical semi-deciduous forest 1.87
Xeric shrubland 2.81

 

 

TABLE 7. MAPE, MARPE, Max PE and Min PE data of the communities taken into account in this work. Martínez-Cabrera and Cevallos-Ferriz, 2008*, Castañeda-Posadas, 2008**.

Communities MAPE
(mm)
MARPE
(mm)
Max PE
(mm)
Min PE
(mm)
Tropical deciduous forest* 1322.1 185.54 202.6 17.1
Los Tuxtlas* 1023.4 80.2 126.9 46.7
Porto Velho* 793 60 110 50
Manaus* 812.1 60.5 102 42.2
Mountain forest* 1400 70.3 170.3 100
Tropical semi-deciduous forest** 619.6 138 166 28
Xeric shrubland** 506 29 66 37
El Cien* 762.4 46.7 184.6 57
Tehuacan Formation 936.7 78.4 169.9 42.5

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