I've been leafing through my guide book, trying to identify lichens found on an alder trunk and Douglas-fir twigs. It's (for me, anyhow) an impossible task. But I was struck, once again, by the strange names that common lichens have been saddled with. Like these:
- Punctured rock tripe
- Seaside kidney
- Peppered moon
- Questionable rock frog (My favourite)
- Lettuce lung
- Tickertape bone
- Blood-spattered beard
The leaf lichen is the most noticeable, but look closer. |
This leaf lichen could be the Hooded bone. Or not. There are several similar species.
Zooming in, Bark barnacle, Thelotrema lepadinum, a crust lichen. |
The round buttons are the apothecia, the fruiting bodies or the lichen. I'm not sure about that patch with dark brown spots. Could be holes, could be fruiting bodies of another lichen. Update: It looks like button lichen, Buellia erubescens.
Zooming in on another spot. |
Are these two different lichens, or different stages of the same one? Update: the one on the right may be Parmelia sulcata.
Further up the same tree. More barnacles, more leaf lichen. The underside of this pale green lichen is a dark brown. |
A twig fallen off a Douglas-fir into the snow. |
The lichens at either end are more of the bone lichens. The leafy one may be ragbag, Platismatia glauca, a "bewilderingly variable species", says the guide book. There are several other similar species. Ragbag has frilly margins with tiny outgrowths or powdery balls. Laundered rag, one of the other common rags, doesn't have these frilly margins.
A key characteristic that helps with identification of a lichen is the surface it grows on, whether rocks or ground or trees, and whether the trees are live or dead, and what species. The ones above are on live trees, alder and Douglas-fir.
A bit of folklore from my guide book: "In Europe, lichens growing on human skulls were once valued at their weight in gold as a remedy for epilepsy."
I don't think I'll be finding any of those. I hope I won't!
- Tripas de piedra perforadas
- El riñon al borde de la mar
- La luna salpicada. (O con pimienta, según como se traduce "peppered".)
- Rana de piedra discutible (Este es mi favorito.)
- Pulmón de lechuga
- Hueso de cinta de teletipo
- Barba salpicada de sangre.
- Líquenes en la corteza de un aliso. El más grande puede ser el Hueso con capuchón, Hypogymnia physodes. O no. Hay varias especies muy parecidos. Y no hay que olvidar todos los otros que lo acompañan.
- Haciendo Zoom. Bálano de corteza, Thelotrema lepadinum. Un liquen crustáceos. Los "botones" son los apotecios, los cuerpos de reproducción. No estoy segura que será esa mancha con puntos negros; pueden ser agujeros, o tal vez otro liquen.
- Otro zoom, el mismo árbol. ¿Son estos dos líquenes diferentes, o dos etapas de la vida del mismo liquen?
- En el mismo árbol. Más bálanos y líquenes foliosos. El liquen folioso es verde claro arriba, y casi negro en la parte inferior.
- Una ramita caída de un abeto de Douglas. Los líquenes en los extremos son de los líquenes hueso. El del centro es uno de los "trapos", probablemente "bolsa de trapos", Platismatia glauca. "Una especie extremadamente variable", dice mi libro guía. Hay otras especies parecidas. P. glauca tiene los bordes irregulares y con protuberancias o bolitas pequeñas; la otra especie común tiene bordes lisos.
I'm only still learning lichens as well. I think the crust lichen with the black dots next to your bark barnacle may well be common button lichen, Buellia erubescens. I think the leafy lichens in the first photo are two different species. The lower one has the texture of Parmelia sulcata (hammered shield lichen? ) but the form seems different than the ones I see.
ReplyDeleteThank you! Yes, the button lichen looks right. Parmelia sulcata is in my guidebook, but there, they call it waxpaper lichen, and the photos are a bit different. Photos of it on the web seem to match it better.
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