Error message

  • User warning: The following module is missing from the file system: views_slideshow. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1128 of /hsphere/local/home/orchardtrust/natureofdorset.co.uk/includes/bootstrap.inc).
  • User warning: The following module is missing from the file system: views_slideshow_cycle. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1128 of /hsphere/local/home/orchardtrust/natureofdorset.co.uk/includes/bootstrap.inc).

Dense-headed Heath Wood-rush: more questions than answers

Share

Dense-headed Heath Wood-rush: more questions than answers

The dense-headed heath wood-rush (Luzula multiflora ssp congesta) is not a species of wood-rush at all! It is a sub-species of the heath wood-rush. When you look at it the dense-headed variety is a very similar plant to the standard variety in terms of height, colouration, hairiness, preferred habitat, flowering time and so on. The difference occurs in the flowers head as you might expect. Instead of the flower head branching out into several small florets they remain tightly packed in a ball, congested as the scientific name says.

That raised many questions for me! Why should a sub-species have formed in this way, indeed, how did it form? It the laws of evolution are as we are led to believe what advantage does the dense-headed variety have that overcomes an issue the standard variety must presumably face. If it had no issues why would a sub-species have to form to overcome no issue at all? How do we actually know that the standard variety came first and that the dense-headed evolved from it rather than the other way round? Maybe we have an example of random gene mutation here that occurred in one of the species giving rise to the other and both have prospered?

The more I think about it the more questions arise! Indeed, how do you even start to go about answering some of these questions? There seem to be more questions than answers and I was not born to be a scientist it seems.


 

If you would like to see the complete series that this post is part of click here ---->
This nature note was written by ----> Peter Orchard
This nature nore was written ----> 2 years 7 months ago

In case you missed them

... here are my other

... recent nature notes!