More happenings in the garden

 It seems as though Spring is trying to appear as there are bulbs starting to flower in the garden.

Crocuses, irises and snowdrops

However, not all the bulbs have succeeded in flowering this year as some have been cut off or dug up in their prime.

Remains of the crocuses

Something has dug them up.  I am a bit puzzled as to the culprit as they have not eaten the flowering shoots and I can still see most of the bulbs.  The suspects are:  a rabbit, a pheasant or a squirrel, all of which have been in the garden. I have put some of the discarded shoots in water to see if they will flower, but I am not very hopeful. Time to set up the trail camera to see if I can catch them in the act!

In my last post, I mentioned a small yellow lichen that I had found on a garden branch.  I was not sure what it was and have had (Zoom) discussions with more knowledgeable lichen people. One reason I had confused myself was that there were actually two different yellow lichens, both tiny.

The first one was  just a tiny bunch of yellow lobes with even tinier bumps on the edges. There are two examples in the photo, and the lead from a propelling pencil is an easy way to give an idea of the scale.

The pencil lead is 0.5mm wide

The brown discs with white rims at the bottom of the picture is a different lichen, probably Lecanora hybocarpa. The discs are apothecia (fruiting bodies that produce spores), whereas the yellow lichen did not have any.  A help when trying to name yellow lichens is to put a drop of potassium hydroxide (KOH) on them and see if you get a colour change.

A red reaction with KOH

This red reaction rules out a whole group of yellow lichens in the Candelaria family.  It looked as though this little one was a Xanthoria and eventually it was named as either Xanthoria candelaria or Xanthoria ucrainica.  I won't go into the details here but the two species are hard to distinguish from each other.  Even more confusingly, they have now been renamed as Polycauliona instead of Xanthoria!

The second similar lichen  was on the same branch but these ones had apothecia, and turned out to be Xanthoria (now Polycauliona) polycarpa.

The ruler is numbered in cm with mm divisions

 I rather went to town with some microscope investigations. I cut a very thin section of an apothecium to get some spores. The spores are dumbbell shaped inside and have the tongue twisting description of polarilocular. 

Microscope photos

I have more pictures but I expect that is enough detail for most of you!