Crocus

I noticed some of the crocuses/croci were out last week and couldn't help thinking that they were rather early. I think this one is Crocus chrysanthus or golden crocus.
Nothing much to say about this species other than it is one which has been bred by humans to select various characteristics for their aesthetic value. And to be fair, not a bad job!
I used to think that they were bulbs, like daffodils, but in fact they are corms, which are swollen stem bases. Each year a new corm develops atop the old one.