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spanningtree

Collection of interesting natural things

I took the picture above to see if I could get a good shot of the ocelli - three secondary eyes between the big ones. They are just about visible. Why spanning tree? It's a routing term, from each user's perspective the network looks like a spanning tree - with no loops and only one route to any place. Every user's spanning tree is unique.

Orchids

Science Posted on Mon, June 18, 2012 20:17:09

Here are a couple of splendid orchids… a bee orchid

and, a real man orchid after I was kindly informed of what they look like and where to find them…



Ocelli (again)

Science Posted on Wed, June 06, 2012 21:25:21

I can’t stop taking pictures of bee’s heads – here’s another, fine set of ocelli.


The little chap was dead.



Orchids

Science Posted on Wed, June 06, 2012 21:22:59

Interesting day today with the Box Hill Volunteers, we spotted some interesting orchids… the rare butterfly orchid
and as a bonus extra, a birds nest orchid… this is in full flower and you can see the pollen on the flowers – but it seems devoid of chlorophyll, and apparently derives its energy from a symbiotic relationship with some fungi


I saw this, as yet, unnamed orchid – perhaps a man orchid, but I’m not sure…

and finally… a white Helleborine (Cephalanthera damasonium)



More urchinary

Science Posted on Mon, May 21, 2012 13:27:22

Here’s another fossil urchin I found yesterday. It is embedded in a flint matrix – I chipped off a corner and the flint is continuous through the fossil.



Mason bee

Science Posted on Sun, May 13, 2012 12:25:25

Can clearly see the 3 ocelli on this little bee.



Rattus

Diary Posted on Sun, May 13, 2012 12:21:56

On the bird table…



Great spotted woodpecker

Science Posted on Sat, May 05, 2012 10:59:05

Likes the fat balls



Fossil Urchin

Science Posted on Sun, April 22, 2012 19:23:07

Found this today – remarkable flint fossil.


What look like barnacles on the base are symmetrically and evenly positioned around the centre line. The whole thing has 5 fold symmetry, with typical urchin like tracks leading to the point at the top of the dome.


The small panels with raised encrusted edges are particularly attractive, like a Faberge egg.



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