In biology, a propagule is any material that is used for the purpose of propagating an organism to the next stage in their life cycle via dispersal.
Pteridophytes or Pteridophyta, in the broad interpretation of the term (or sensu lato), are vascular plants (plants with xylem and phloem) that reproduce and disperse via spores.
This evolutionary convergence is not unusual, since the form of a strobilus is one of the most compact that can be achieved in arranging lateral organs around a cylindric axis, and the consolidation of reproductive parts in a strobilus may optimize spore dispersal and nutrient partitioning.
Biological specimen | Biological membrane | Marine Biological Laboratory | International Union of Biological Sciences | Convention on Biological Diversity | biological pest control | Biological classification | Salk Institute for Biological Studies | Biotechnology and Biological Sciences Research Council | Biological warfare | Seed dispersal | Journal of Biological Chemistry | Biological pest control | Kellogg Biological Station | Biological life cycle | Biological dispersal | American Society of Agricultural and Biological Engineers | University Marine Biological Station Millport | Oceanic dispersal | Marine Biological Association of the United Kingdom | La Selva Biological Station | biological warfare | Biological Computer Laboratory | The Psycho-Social, Chemical, Biological & Electro-Magnetic Manipulation of Human Consciousness | seed dispersal | Poço das Antas Biological Reserve | National Institute for Mathematical and Biological Synthesis | National Centre for Biological Sciences | Mesoamerican Biological Corridor | International Academy of Medical and Biological Engineering |
The nutritious tubers are an important food source for waterfowl, including the Canvasback, which help disperse the plant.