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Eucladium verticillatum

Posted: Wed Dec 08, 2010 3:39 pm
by MWP admin
Val, the attemptive ID of the first moss was Didymodon rigidus if the margins are bistratose and Didymodon sp. if unistratose. I could not verify the number of cells at the leaf margins, but Didymodon rigidulus makes sense habitat wise. It was found at Dwejra, Gozo.

I'll soon post photos in a new post

Of course should be treated as a very attemptive ID.
Habitat wet stones in the shade (half-dark)

Posted: Wed Dec 08, 2010 6:52 pm
by MWP admin
Leaves about 2.5mm long, narrow lanceolate, tapering gradually to an acute tip, margins not particularly recurved. When dry, leaf margins get recurved up, and asumes an erect orientation (not patent as when moist) but not appressed to the stem (as usually in vinealis).


Didymodon vinealis seems the only other alternative, so it is between Didymodon rigidulus and D. vinealis.

Check images

Posted: Wed Dec 08, 2010 8:31 pm
by IL-PINE
wow beautiful photos!

Posted: Mon Dec 13, 2010 9:21 pm
by MWP admin
Another set of images.

Apart Didymodon, there is also Trichstompis to consider, though I do not think that there is a hyaline apical cell.

Posted: Wed Dec 15, 2010 11:11 am
by valerandi
The new photos show that the leaves are linear and the cell shape indicates Pottiaceae. Although Didymodon rigidulus was recorded once from Wied Incita, and although the shape and habit is similar to your photos, the probable identity is Eucladium verticillatum. I have recorded this from Dwejra where the water drips from the cliff above (under the road).

To confirm the identity use a microscope and look at the base of a couple of leaves. You should see teeth like projection from the sides.

If you are interested in mosses we can organise a visit to Maqluba where I need to collect a sample of a moss I photographed there many years ago. I need the company as its difficult to get in and out.

best regards
Stephan

Posted: Wed Dec 15, 2010 4:07 pm
by MWP admin
ID: I got lost scratching my head between Didymodon sp.and Trichostomopsis sp. and nothing is matching well, in particular becasue the leaves are so linear rather than sub-ligulate/ligulate. I have not analysed Eucladium spp. since the keys did not led me there, though it is most probable that i missed some character.

Since the location is very near to where you described, it is most probable that the Id is that you suggested. I will investigate further and keep you posted.

By the way, MANY THANKS :P

Posted: Wed Dec 15, 2010 6:12 pm
by IL-PINE
we can certainly do a mwp hike to maqluba hux :P

Posted: Sat Dec 25, 2010 4:29 pm
by MWP admin
With very great effort, I have observed a denticulate margin in the basal hyaline margin, speaking actually of cell edges forming this character.The margin of the upper part of the leaf is not perfectly smooth, I would define it irregularly, minutely denticulate, but for sure the denticulation at the basal part is more evident.

I spent 2 hours visualising the margins before convincing myself because we are speaaking of teeth in the range of 10-20um!