Pollination ecology of the annual herb Hedyotis corymbosa (Rubiaceae)

• Autores: A.J. Solomon Raju, J. Radha Krishna
• Localización: Phytologia Balcanica: International Journal of Balkan Flora and Vegetation, ISSN 1310-7771, Vol. 24, Nº. 3, 2018, págs. 343-349
• Idioma: inglés
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• Resumen

  • Hedyotis corymbosa is an annual herb that grows in open, moist and highly disturbed habitats during the wet and winter seasons. It is isostylous, weakly protandrous, self-compatible, auto-selfing and entomophilous.

    The natural fruit set is >90% but only half the ovules produce seeds, which could be due to unfertilized ovules, selective abortion of low-quality seeds arising from self-pollination, and state of nutrient environment in the soil. The fruits are non-fleshy, erect, cup-like capsules, which dehisce loculicidally. Seed dispersal is anemo-, baro-, ombro-, hydro-, and anthropochorous. The seeds are dormant, germinate and produce new plants during the wet season. Therefore, the study suggests that this plant is evolved to complete its entire life cycle seasonally