Is this by any chance Peltigera venosa 'Fan Lichen'?

Ruth_MI(z5MI)March 17, 2011

I'll start by saying I know virtually nothing about lichens.

This is one of my favorite things in my garden, and I didn't plant it. It's growing throughout my path, and has been increasing for several years.

I call it a lichen, but for all I know, it's not. Today I Googled "fan shaped lichen" and the name above is what I came up with. It does look very similar. Can anyone help me identify this? Thanks very much!

Here is a link that might be useful:

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lycopus(z5 NY)

Hadn't heard of that one before, but I believe yours is Marchantia polymorpha. It is fairly common and is considered a weed in plant nurseries. It likes a little fertilizer if you want it to encourage it. The little cup-shaped structures are called gemmae cups and contain fragments called gemmae that can produce new plants.

    Bookmark   March 17, 2011 at 8:23PM
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Ruth_MI(z5MI)

Thanks - I'd never heard of those, but that's definitely what I have based on some pictures I just found online. It beats weeds or grass between the flagstones, so maybe I'll take your advice and fertilize it. Thanks again!

    Bookmark   March 17, 2011 at 9:02PM
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