morphology

To establish if foliar herbivory causes changes in floral morphology and rewards that could alter floral visitation, we selected another 30 pairs of plants (15 pin and 15 thrum) of P. angustifolia. On each pair, we selected branches with inflorescences at the bud stage to serve as locally-induced, systemically-induced, and control branches and applied grasshopper herbivory treatments as described above. After 3 days, grasshoppers and bags were removed and once the flowers opened we took measurements of corolla length, anther length, style length, and distance from anthers to stigma for one flower randomly chosen from each inflorescence. The first column shows the number of the group of plants (bloque), the second column shows the treatment: L, local induction with Z. selenesii; S systemic induction and C, control. The third column shows the Morph of the branch T for Thrum and P for Pin. columns 4 to 7 show the length of different structures in the flower (Corola, anteras (anthers), estilo (Style) and distancia anteras-estigma(distance anthers-stigma)).