spanningtree

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

SciencePosted by Jay 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)

SciencePosted by Jay 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

SciencePosted by Jay 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

SciencePosted by Jay 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

SciencePosted by Jay Sun, May 13, 2012 12:25:25

Can clearly see the 3 ocelli on this little bee.


Rattus

DiaryPosted by Jay Sun, May 13, 2012 12:21:56
On the bird table...

Great spotted woodpecker

SciencePosted by Jay Sat, May 05, 2012 10:59:05
Likes the fat balls



Fossil Urchin

SciencePosted by Jay 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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