Table 4. Sample size and P-values of the experiment on the stamen origin.

taxon	n plants	n flowers	∑ stamen moved	P
Nasa vargasii	20	51	693	0.201
N. moroensis	20	56	573	0.244
N. macrothyrsa	3	25	281	0.947
Caiophora cirsiifolia	20	23	158	0.569
Presliophytum heucheraefolium	5	18	262	0.011