TABLE 2 



CONCENTRATION OF STOMATA AND LAMINA THICKNESS IN INTERRIDGE AREAS.* 



No. of stomata mm : in the 



i 



abaxial epidermis, adaxial 



epidermis, and both 



epidermides 



Ratio of nos. of 

 stomata mm : - 

 abaxiahadaxial 



Lamina thickness - 

 general range and 

 midpoint of range 



(mm) 



Lamina thickness - 



in nos. of cell 



layers 



A. aff. A. antioquiae 

 (coll. A) 



A. aff. A. antioquiae 

 (coll. B) 



A. cabrerae 

 A. cayapensis 



A. sp. nov. aff. A. 

 cupulifera 

 (coll. A) 



A. sp. nov. aff. A. 

 cupulifera 

 (coll. B) 



A. gamoiepa/a 



A. hookeri 



A. longitepala 



A. sp. nov. aff. A. 

 longitepala 



A. moritziana 



213 



267 



108 

 155 



131 



169 



260 

 117 

 138 



176 

 118 



4.0 



2.8 



13 



3.1 



0.31 



0.31 



9.0 

 3.1 



2.5 



5.6 



4.7 



217 



270 



121 

 158 



132 



169 



269 

 120 

 140 



181 



122 



53 



95 



8.4 



50 



421 



542 



29 

 38 

 55 



31 



25 



0.18-0.29; 0.24 



0.23-0.34:0.29 



0.41-0.52;0.46 

 0.31-0.45:0.38 



0.16-0.20:0.18 



0.20-0.29; 0.24 



0.35-0.44; 0.40 

 0.22-0.29; 0.26** 

 0.25-0.36; 0.30 



0.31-0.39:0.35 

 0.23-0.29:0.26 



11-13 



12-15 



17-20 

 19-22 



10-15 



13-15 



16-19 



10-12** 



11-14 



15-18 

 12-16 



