Bracken Map (
Rhopographus filicinus) is a common and widespread species of fungus that is mainly found in the UK, with some records from mainland Europe, including France, Sweden, Germany, and north to Scandinavia.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNJ4_Nu-j1Ot51lZ3saqPE6JyPGE76Zivpw93EOK4yiFKUkucHD9Snz7x-I6ajEmi7o0MPJThuUJC3Y2lM7e6PRkP0M_p_de9Mj3tWbxiqAeMDNhrUH_fT6GGeih89CUVGymmc2mPHnonz/s320/Screen+Shot+2018-05-06+at+12.03.31.png) |
UK distribution map of Rhopographus filicinus © NBN Atlas |
Not much is known about the fungus, but it is characteristic in its appearance as it forms linear black marks on the petioles (stem) of living Bracken (
Pteridium aquilinum) plants and becomes more obvious once the plants have died. As such, it is most noticeable in autumn when the Bracken plants turn brown and die.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgT1jDEn8-7UagdnWSZ80Hczy9uLu9DBYwEG1MqVZKS9sn2yjUB8cccQweZacfrt1cqex2qxhIzT2sQNpv9ypwYq2EgDAfgmbdz2rYbtcL4HOJQDbln58EYwoJq8eVkCBD7Xux-qxhyKbu7/s400/31531693_974514409369887_1735896506822557696_n.jpg) |
Rhopographus filicinus on the stem of a Bracken plant on the UEA campus. |
Unfortunately I couldn't find any more information about the ecology of Bracken Map Fungus, so that'll have to do.
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