Taking Home Darwin's Species Concept

I found, through our discussions of the Origin, that I was able to get a better grasp of what Darwin meant be 'species' and perhaps what many biologists really mean by 'species'. It is hard to describe what I have established in my head as Darwin's picture of how a phylogeny would really look versus how we present it. It is more an image than anything verbal. At some point I will do a painting of it, scan it, and put it on here so you can share in my take home. For now, though, all I can do is declare that Darwin's concept of species still makes more sense to me than any of those I have heard in the Philosophy of Biology thus far. The continued applicability of Darwin's ideas never ceases to impress me.