Thursday, April 02, 2020

On mossy trunks

Some more tree trunks to wonder about:

These are beside the Ripple Rock trail.

Douglas fir

The forest is deep and shady here. Most of the Douglas fir trunks have a good crop of moss, and the lower branches are lightly furred, with a different, dangly, hairy moss.

But, among them are the alders:

Red alder
The alders have bare trunks, but the branches are heavily laden with a moss that looks (from ground level) like the Douglas fir trunk moss.

Red alder trunk and branches.

Why?

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Ya que estoy mirando los troncos de árboles, aquí hay otro misterio. En un bosque al norte de la ciudad, en camino a Ripple Rock, los abetos de Douglas llevan una capa gruesa de musgo en el tronco, y en las ramas, otro musgo, más delicado, como pelos colgantes.

En el mismo bosque, los alisos rojos no traen musgo en el tronco, pero las ramas están cubiertas del musgo que crece en los abetos.

¿Porqué?

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