Friday, January 14, 2022

Leaf lichen on an alder twig

 I'm getting down to the lichen, finally. These were growing on twigs from a fallen alder.

Foliose, or leafy lichen

Some large, semi-attached leaves, others small and lying flat on the surface

Further down on the same twig

The lichen is bright green, greener when it was wet, and a dark brown on the underside of each thallus (leaf). Some were thick, seeming inflated; others, both attached and loose, are thin.

I don't know if this is one species of lichen in different stages, or two lichens. I do know that these twigs did carry at least two species, one a tiny button lichen.

The more I try to sort these lichens out, the more confused I get. On "Ways of Enlichenment", I found some that more or less seem to match these, at least in some of the photos, except that they are not quite as green. (But how wet were they?) Hypogymnia sp.; see what you think.

Tomorrow; a few more from the microscope.


Por fin vuelvo a los líquenes. Estos son unos líquenes foliosos, que crecen en una ramita de un aliso caído.

Tres fotos de líquenes  en dos ramitas.

Este liquen es de un verde claro, sobre todo cuando está mojado, y en la parte de abajo de cada talo (u hoja). Algunos eran gruesos, hasta parecen inflados; otros, tanto fijos como sueltos, son casi planos.

No sé si esto representa una especie en diferentes etapas, o si son dos especies distintas. Sí sé que en estas ramitas habían por lo menos dos especies de liquen; una era de un liquen muy pequeño en forma de botoncitos.

Entre más trato de identificar estos líquenes, más me quedo sin entender. En el sitio, "Ways of Enlichenment", encontré algunos que más o menos se parecen a éstos, sino que no son tan verdes. (¿Pero si no estaban tan mojados?) Son especies del género Hypogymnia; ¿Qué piensas?

Para mañana, tengo algunas fotos más del microscopio.


  1. Some of it, especially on the right in the first photo, looks like Parmelia sulcata to me, but I'm only just learning lichens as well.

  2. It does look very much the same. Thanks!


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