Ulva lactuca renamed

Ulva fenestrata.

I sent for the original description of Ulva fenestrata. Postels, A. & Ruprecht, F., 1840. It was in a volume of Illustrationes Algarum, Nicolai 1; the text was in Russian.

However there are coloured plates of the algae described and this is that for Ulva fenestrata.

Not exactly what I think of as European Sea lettuce (prev known as Ulva lactuca).

I’m with you. None of my encounters with U.‘lactuca’ reflect these pix
https://ucjeps.berkeley.edu/guide/green57.html
That one mentions ‘our’ [Myrionema strangulans]

Is the Russian description fairly short?

All adds to the evidence that morphological identification of Ulva species is not really viable.
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I suppose Ulva latuca in a non-native species, so is it invasive and how would anyone know?

Russian description. The whole volume, apart from the title page, is in 1840s printed Russian. It covers several seaweeds, and I could not distinguish one from another in the text.
The illustrations were labelled with their latin names, so that’s how I found U. fenestrata. I thought all the illustrations are worth looking at as examples of artistic expertise.
I got it by requesting the pdf from the algaebase website. Ulva fenestrata Postels & Ruprecht :: AlgaeBase

I just thought if there were an obvious short passage that I could ask a Russian speaking friend for a translation.

I’ve heard that Google Lens will also do that for you, but that still requires identifying the passage.

Google Translate via Google search is excellent, if not spectacular!
Весь том, кроме титульного листа, 1840-х годов отпечатан на русском языке. Он охватывает несколько водорослей, и я не смог отличить одну от другой в тексте.
Here https://translate.google.com/?hl=en&tab=TT&sl=auto&tl=en&op=translate
I often find such things easier in here https://www.biodiversitylibrary.org/
v. 3 1947-49 - Farlowia - Biodiversity Heritage Library
v. 3 1947-49 - Farlowia - Biodiversity Heritage Library
Costs a lot of time!
This illustration is by Alexander Postels himself

Don’t miss the opportunity to use the BHL for historical information
here is an early reference to lactuca

Show Text sometimes gives opportunity to copy passages
You might need to put life on hold…

Don’t MISS any Observations of Ulva - put it on your Watch List

And a bit of history https://www.ispotnature.org/communities/uk-and-ireland/view/observation/16/miked-green-slime-21-august-2008-920pm
<<…>>
Added Today 27th. I have received an invitation to send Scapa Ulva samples to the Department here
Research Group Phycology — Department of Biology — Ghent University.
Part of
https://www.natur.cuni.cz/eng/science-and-research/knowledge-and-technology-transfer/research-capacity/phycology-research-group
I am hoping that lots of good might come our way
Definitely Ulva linza - ha!


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12 March (disallowed from adding a new Comment)

Showing our age?
Today I came to Corallina via this https://www.ispotnature.org/communities/uk-and-ireland/view/observation/858015/
In the process I tripped over an other serious name change
From Corallina elongata J.Ellis & Solander, 1786
To Ellisolandia elongata (J.Ellis & Solander) K.R.Hind & G.W.Saunders, 2013
IF it’s gone to another genus, what is to happen to our very precious C.officianalis?
I really haven’t read any of this
https://www.researchgate.net/publication/279037892_The_genus_Ellisolandia_Corallinaceae_Corallinales_Rhodophyta_in_the_Azores_NE_Atlantic_Character_expression_and_taxonomic_evaluation
Don’t blame me

Had a brief look at the paper, looks like the same fun as the Ulva species.
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I am not surprised the land locked universities are asking for samples from Orkney!