Saturday, 28 February 2015

Sphagnum at Keston

Sphagnum capillifolium subsp. capillifolium.  Keston Common, 10 December 2014.
Sphagnum capillifolium subsp. capillifolium.  Keston Common, 10 December 2014.
 Sphagnum mosses like it really wet, and live mostly in boggy places and at the edges of some streams.  I am certainly no moss expert, but I have a small field guide so last December I had a look at Keston Bog.  I managed to find and identify three of the species that live there; I know there are more.

Sphagnum capillifolium subsp. capillifolium.  Keston Common, 10 December 2014.
Sphagnum capillifolium subsp. capillifolium.  Keston Common, 10 December 2014.
You can see how the stem is covered by some clasping branches that grow quite differently from the spreading ones.  The stem also has its own types of "leaves".  If you look carefully you can also see a spore capsule.

Sphagnum fallax.  Keston Common, 10 December 2014.
Sphagnum fallax.  Keston Common, 10 December 2014.
This light green species seems to be the most common. 

Sphagnum fallax.  Keston Common, 10 December 2014.
Sphagnum fallax.  Keston Common, 10 December 2014.
The leaves of this one are even more thin and pointed than the reddish one above.  But the next one:

Sphagnum palustre.  Keston Common, 10 December 2014.
Sphagnum palustre.  Keston Common, 10 December 2014.
Has much broader leaves.  You can see that you have to look closely to distinguish these.

Sphagnum palustre.  Keston Common, 10 December 2014.
Sphagnum palustre.  Keston Common, 10 December 2014.
But once you do, differences become apparent.  This one also has some spore pods.

The stems of these mosses are quite relaxed and floppy.  In situ they are supported by the mass of the stems all around them.  For these photos, I dangled them downwards and they flipped the photos the other way up!

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