Talk:Peltigera hydrothyria

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  • RE: Hydrothyria venosa (Peltigera hydrothyria) - The Waterfan Lichen
    • To: LICHENS-L (Lichen listserver) 25 March 2011
    • From: David Richardson


Dear Lichenologist Colleagues,


Frances Anderson, Rob Cameron and I, are preparing to undertake research and write a Cosewic Status Report (Committee on the Status of Endangered Wildlife in Canada) on Hydrothyria venosa (Peltigera hydrothyria) in Canada.

We hope (with the help of Canadian colleagues) to visit as many of the known sites of this lichen in Canada as possible to determine if the lichen is still extant at each site. We plan to assess the number of thalli, measure water parameters etc. as well as look for possible new locations nearby. There are records of this lichen from eastern Canada (Nova Scotia, New Brunswick and Quebec) as well as from Western Canada. We will be gathering records from herbaria in Canada, but from our experience in writing a COSEWIC report on Degelia plumbea, we know that additional and unexpected records can come from personal herbaria of lichenologists or from herbaria outside Canada.

If you have any records of Hydrothyria venosa (Peltigera hydrothyria) from Canada, we would very much like details of the record as well as any information on the of thalli found, ecology of the site, etc. In addition if you searched particular rivers or streams for this lichen but did not find it, then that information too is valuable for the ‘Search Effort or Distribution’ sections of our report.

We will of course acknowledge any help in the report submitted to Cosewic.

I look forward to hearing from you.

Best wishes, David


Professor David Richardson, Dean Emeritus, Editor-in-Chief for the journal 'Symbiosis'.

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