TABLE 4 



LEAF VENATION PATTERNS OF THE CULTIVATED COCAS 



{ERYTHROXYLUM SFP.) 





BASIC 

 PATTERN 



SECONDARY 

 VEINS 



INTERCOSTAL 

 AREAS 



£. Coca Lam. (including 

 var. Coca & var. Ipadu 

 Plowman 



E. novogranatense var. 

 truxillense (Rusby) 

 Plowman 



E. novogranatense 

 var. novogranotense 



Intergrading series of patterns occur both within and between these varieties: festooned eucamptodromous 

 to transitional (intermediate) to festooned brochidodromous. 



Many (15-40), closely spaced Generally similar to those 



and moderately thick veins; 

 diverging from the midvein 

 at wide acute or 90 degree 

 angles; following a regular, 

 initially straight and ex- 

 medially upcurving course. 



of £*. Coca, but exhibiting 

 the full range of variation 

 between typical leaves of 

 E, Coca and E. novograna- 

 tense var. novogranatense. 



Relatively numerous and regu- Relatively numerous and 



lar in size and shape. 



regular in size and shape 

 as in E Coca or interme- 

 diate between typical leaves 



Fewer (8-18), more widely 

 spaced, slender veins than 

 E. Coca: diverging at nar- 

 row to wide acute angles; 

 following a less regular, 

 exmedially upcurving course 

 than in typical leaves of 

 £*. Coca, 



Fewer, larger and less 

 regular in shape than in 

 typical specimens of E, 

 Coca and E, novogranatense 



of E. Coca and E. novograna- var. truxillense. 

 tense var. novogranatense. 



