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| Source of variation | DF | MS | F | P-value |
| Treatment (T) | 1 | 4736.89 | 727.11 | <0.001 |
| Site (S) | 1 | 0.89 | 0.14 | 0.721 |
| T x S | 1 | 12.5 | 1.91 | 0.170 |
| Error | 68 | 6.51 |
Two-way ANOVA of the effects of treatment (pollinator-excluded vs. open-pollinated) and site (La Parva and Piedra Numerada) on stigma longevity (# days) of Chaetanthera renifolia capitula. Significant effects are indicated in bold.
