Observaciones de dejaym

Aphids are not the easiest of organisms to ID. But they are commonly associated with a specific host plant, which MIGHT make it easier.
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This seems to be Hyperomyzus rhinanthi judging by the patterns and size; but colour and size do not always make an ID.
However, this was found as a result of nearly an hour of opening the flower capsules of the Yellow Rattle (Rhinanthus minor) and I had been warned to expect it.
It is certainly elusive, see https://www.gbif.org/species/2076842
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Clearly then, from INSIDE the flower capsule of its known secondary host plant. found residing on the inside of the calyces - photos
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https://www.commanster.eu/Commanster/Insects/Bugs/SpBugs/Hyperomyzus.rhinanthi.html

A rare glimpse of a egg bearing sea spider perhaps beside a male.
They are not easy to photograph wet, as cameras are often fooled by reflections
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Nice Link - https://nathistoc.bio.uci.edu/Pycnogonida/Pycnogonum.htm

a repeat of an earlier one here
https://www.inaturalist.org/observations/17850741
which has received no attention.
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I have no doubts about the ID but need some support
It is well recorded in the UK here https://www.gbif.org/species/7968070
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Crisp to the point of glassily fragile; light golden brown, stiff when immersed, tufted colony, on the surface of a broad frond of stranded Sugar Kelp (Saccharina latissima).
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see
https://www.aphotomarine.com/bryozoan_scrupocellaria_reptans.html
https://www.european-marine-life.org/17/cradoscrupocellaria-reptans.php
https://eol.org/pages/39271095
https://www.bioimages.org.uk/image.php?id=103318

I don't think ALL pitting in barnacles is down to Pyrenocollema . But when it so evenly distributed and sized it is quite likely.
I was amazed that AI here recognised it.
It seems very common but this is my first encounter and I intend to follow it more closely.
Also see on nearby live Patella Photo 9 (A)

I suspect we might also see Pyrenocollema sublitorale** (photo 10 (B))
But I need to collect more photographs.
Many of the surfaces seen n these old barnacles (Semibalanus baloides) are abraded by the seawash,
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http://www.lichensmaritimes.org/index.php?task=fiche&lichen=876&lang=en
**https://nature22.com/estran22/vegetaux/lichens/lichens1.html

The first photo shows the mature receptacles of Channelled Wrack (Pelvetia canaliculata)
During my November investigation I came across the ascomycete fungus

Stigmidium ascophylli.

This is recorded in Northern Europe, sparsely in the USA under a different name and extensively in the UK (GBIF)
The accepted name here may be a synonym
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My sources for ID are -
•http://www.lichensmaritimes.org/index.p•hp?task=fiche&lichen=823&lang=en
https://www.outerhebridesfungi.co.uk/species.php?id=430

Pristiphora ID proposed by AI
Found on Salix pentandra only - wide choice of other Salix available locally.
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I have 50 Photos
Euura oligospila and Euura caeruleocarpus have been suggested
@ophrys @iinsectamo

Distinctive blistering on Red Currant leaves.

Sticky mess underneath where the Aphid culprit can be see in July
https://influentialpoints.com/Gallery/Cryptomyzus_ribis_Red_currant_aphid.htm
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https://bladmineerders.nl/parasites/animalia/arthropoda/insecta/hemiptera/sternorrhyncha/aphidoidea/aphididae/aphidinae/macrosiphini/cryptomyzus/cryptomyzus-ribis/

Partnered with https://www.inaturalist.org/observations/125158084
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A second visit the next day. A new small batch had come in with the tide. These are assembled at low water in fairly calm conditions.
The tide was again rising, so they were gradually being lifted from the sand to be rolled over and smashed. They are very delicate and quite difficult to photograph on the scale card.
I am certain the ID is correct but I failed to resolve the numerous marginal cirri. But I have illustrated them in one of my other Observations.

I felt it useful to add another Observation as there is so little Web material.
About 36 World records, 9 in the UK

The plant is Hogweed (Eritreum sphondylium). The yellow infection is most probably Puccinia hercula but mostly comprise lesions on the stems and veins, resembling Albugo spp, . Close examination reveals puccinia-like pustules and probably immature aecia
There are no other records here (iNat) but it is recorded in my home region.
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Untreated (mown annually) roadside in farmland
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Not very common, not often noticed rust-type (fungal) infection of Dandelion (Taraxacum) leaves. Distorts and discolours the leaf.
Small pustules (sori) occur as the fungus matures
Long lasting through the season and rain.

See https://bladmineerders.nl/parasites/fungi/chytridiomycota/chytridiales/synchytrium/synchytrium-taraxaci/
and
https://www.fungi.org.uk/viewtopic.php?t=177

This is an Aphid Gall on Wych Elm (Ulmus glabra) leaves.
As with all galls it is important to get sight of the 'culprit'. In the case of Eriosoma ulmi it is essential because it is not the only Galler of Wych elm leaves.
It is rare to see the Aphid outside the leaf roll but, when seen, it will need to be confirmed as a wax-covered fundatrix. These are found inside the roll. The home is often a sweet sticky mess but it is usually easy to find several fundatrices.
There are at least 75 Elm Aphids in the World
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For good ID confirmation, a photo of the aphids is usually necessary
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https://bladmineerders.nl/parasites/animalia/arthropoda/insecta/hemiptera/sternorrhyncha/aphidoidea/aphididae/eriosomatinae/eriosomatini/eriosoma/eriosoma-ulmi/
and
https://influentialpoints.com/Gallery/Eriosoma_ulmi_Elm-currant_aphid.htm

Really only associated with Groundsel and Oxford Ragwort.
Clearly a puccinia rust.
Photos show Common Groundsel (Senecio vulgaris) UK
• https://www.naturespot.org.uk/species/puccinia-lagenophorae
♦ http://www.dorsetnature.co.uk/pages-fungi/f-83.html
• https://eol.org/pages/16336

Usually under the ground but near the surface and always attached to smaller rootlets of Alder (Alnus ) and most often associated with Alnus glutinosa.
Some resource links

• https://www.usgs.gov/media/images/alder-root-nodules
• https://earthlingnature.wordpress.com/2018/03/16/friday-fellow-alder-root-bacterium/
• https://www.science.org/doi/10.1126/science.aad4501?sa_campaign=Email%2Ftoc%2F26-May-2017%2F10.1126%2Fscience.aad4501&

This has quite a few names but Pustula tragopogonis seems to be the latest one. I know it as Albugo tragopogonis but had just begin to call it Pustula obtusata. Never mind, Taxonomists know best. I do not like the common name here as this is really not on sunflower but Common Groundsel (Senecio vulgaris)

The first picture shows it sharing with Puccinia lagenophorae on the same leaf, with Pustula underneath, the other on top.
It is so like Albugo lepigoni - https://www.inaturalist.org/observations/57742403

A common mildew and found more often on the leaves of Plantago major and similar broadleaved Plantago species.

Here, it is shown on Plantago maritima as a white powdery coating.
In this case the plant is shared by Golovinomyces sordidus which produces the small pustules seen in Pictures 10 & 11
BOTH occurring on the same plant in this location - picture 12
Picture 13 shows typical spore-chain of powdery mildew (on Filipendula ulmaria - Meadowsweet)

Golovinomyces sordidus
https://bladmineerders.nl/parasites/fungi/ascomycota/pezizomycotina/leotiomycetes/erysiphales/erysiphaceae/golovinomyces/golovinomyces-sordidus/
and
https://www.naturespot.org.uk/node/122990

Podosphaera plantaginis
http://www.bioref.lastdragon.org/Erysiphales/Podosphaera_plantaginis.html

A small, almost invisible organism.
An obligate parasite of Spergularia (Sea Spurrey), causing ‘white rust’ or ‘white blister’.
Sporangiophores appear on the host's stem, causing it to swell and burst. The white powdery spores are then dispersed by wind and rain.