Orthotropous seednet mail

A very specific and interesting topic!

Orthotropous seeds are a type of seed that has a straight, vertical embryo axis, meaning that the embryo grows directly upwards from the seed coat. This is in contrast to other types of seeds, such as anatropous or campylotropous seeds, which have more complex embryo axes.

Here's a breakdown of the characteristics of orthotropous seeds:

• Embryo axis: Straight, vertical
• Seed coat: Simple, with no specialized structures
• Endosperm: Absent or very small
• Cotyledons: Absent or very small
• Pericarp: Thin, membranous

Examples of plants that produce orthotropous seeds include:

• Grasses (Poaceae)
• Bamboo (Bambusa)
• Some species of orchids (Orchidaceae)
• Some species of palms (Arecaceae)

Now, about the "mail" part... I'm assuming you're referring to the seed dispersal mechanism. Orthotropous seeds are often dispersed by wind, water, or animals. For example:

• Grasses and bamboo produce seeds that are dispersed by wind, with the seeds being carried away from the parent plant by the wind.
• Some orchids produce seeds that are dispersed by animals, such as bees or wasps, which visit the flowers to collect nectar and inadvertently pick up the seeds on their bodies.
• Some palms produce seeds that are dispersed by water, with the seeds being carried away from the parent plant by rivers or ocean currents.