Figure 1. Concentration and duration dependent effects of HEE (60:40) of C. pulcherrima leaves on the percentage of motile sperm in (A) human and (B) rat samples followed by different incubation times (20 secs, 15 and 30 mins). Points and bars were expressed as mean± SEM (n=16). ANOVA followed by “Multiple-comparison Student’s two-tail ‘t’-test” was performed. Points and bars with different superscripts (a-h) differ from each other significantly, p<0.05.