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|  » Stats |
Members: 50,169
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Top Poster: glsammy (15,069)
| | Welcome to our newest member, worrit | |  | 
01-04-2010, 01:02 PM
| | Active Member | | Join Date: Oct 2007 Location: Bristol
Posts: 30
| | | Liverwort for ID
Hi, I had this posted in the lichens section and have been informed it is in fact a liverwort, so I thought I would repost in the correct section. It was found growing on some compost among my blueberry bushes. I don't know anything about liverworts, so all suggestions are welcome!
Cheers, Loz     Quote:
Originally Posted by Lancashire Lad  Looks to me to be one of the Marchantiales species.
The raised air pores on the upper surface of the thallus suggest possibility of Preissia quadrata - Narrow Mushroom Headed Liverwort.
The pores on your examples look somewhat different to those i've seen on Marchantia polymorpha. Also, there is no sign of black midrib on your pics.
Not by any means certain, just a suggestion.
Regards,
Mike. | |
01-04-2010, 01:53 PM
| | Member of the Wild Empire | | Join Date: Oct 2007
Posts: 409
| | | Re: Liverwort for ID
Looks like a young Marchantia polymorpha or maybe lunularia cruciata |
01-04-2010, 02:30 PM
|  | Knight Commander of the Wild Empire | | Join Date: Sep 2008 Location: Red Rose County
Posts: 5,205
| | | Re: Liverwort for ID
Copied across from Lichen Forum Quote:
Originally Posted by Lancashire Lad Looks to me to be one of the Marchantiales species.
The raised air pores on the upper surface of the thallus suggest possibility of Preissia quadrata - Narrow Mushroom Headed Liverwort.
The pores on your examples look somewhat different to those i've seen on Marchantia polymorpha. Also, there is no sign of black midrib on your pics.
Not by any means certain, just a suggestion.
Regards,
Mike. | I dont think this would be Lunularia cruciata because that one has crescent shaped gemmae cups.
Regards,
Mike. |
17-04-2010, 08:18 AM
| | Officer of the Wild Empire | | Join Date: May 2007 Location: Renfrewshire, W. Scotland
Posts: 712
| | | Re: Liverwort for ID
As I have answered in the lichen thread, this is Marchantia polymorpha subsp. ruderalis.
Can look rather like Lunularia and grows in the same sort of places, but has completely circular gemma cups. Often lacks the dark median line that characterises subsp. polymorpha.
Alan |
03-05-2010, 11:32 AM
| | Officer of the Wild Empire | | Join Date: May 2007 Location: Renfrewshire, W. Scotland
Posts: 712
| | | Re: Liverwort for ID
Quote:
Originally Posted by AlanS As I have answered in the lichen thread, this is Marchantia polymorpha subsp. ruderalis. | I should perhaps have given a source for this name, as it is not mentioned in field guides.
Identification based on the account in The Liverwort Flora of the British Isles by Jean Paton, a hefty tome from Harley Books, by the acknowledged leading British expert on the group.
Alan | | |
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