Danish Scurvy grass (again), a fern and a lichen

 A large patch of Danish Scurvy Grass (Cochlearia danica) is flowering opposite the Balavil Hotel just now (1 May 2023). It is the biggest patch I have seen in Newtonmore Village.  There was a previous post about this plant here, but I couldn't resist mentioning it again. It is a coastal plant as it tolerates salt, but as the roads are salted in winter, it has found a niche  alongside the roads. Its flowers are white but the buds are an attractive shade of mauve.

Easy to find! Under the bench and to the right.

Last weekend, I went to the Spring Meeting of the Highland Biological Recording Group which was held in Spean Bridge.  There were some interesting talks, including one about Loch Arkaig Pine woods which we were to visit in the afternoon.  However, to get there, you have to cross the  Caledonian Canal at Gairlochy where there is a swing bridge.  Unfortunately, by the time I got there the bridge had broken down, with half the party on the other side and half still on the Spean Bridge side!  So that trip was abandoned and I made my way back home.  Not wanting to waste the drive, I did some lichen hunting on the way back.  First stop was by Pattack Falls. A well as lichens, there was a nice patch of a Polypody fern on a rock, with the sun shining through it. The sun showed up the little brown circles on the underside of the fern.  These are called sori and hold the spores that ferns use to reproduce.

Common Polypody

There was also a lichen on the same rock, that was unfamiliar to me. Round crusty patches, white at the edges and beige in the centre.

There are little circles in the centre which are fruiting bodies (apothecia) and close up they look like mini-volcanoes.

I did some testing - which involves adding a very small drop of two chemicals and seeing if there is any colour change. Bleach went red and Potassium hydroxide went yellow. This helps with ID.  I think this lichen is called Diploschistes scruposus. Unfortunately there's no easy name!