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Posts by Anne-Laure D 🌿

📣 Abstract submission is now opened for the 12th European #Paleobotany and #Palynology Congress : www.uni-muenster.de/GeoPalaeonto... 🌿⛏️ Deadline is May 31. Don't hesitate to contact me if you have any questions about our symposium for early career researchers.

1 day ago 8 11 0 0
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Did you say glacier-compressed wood ? 🧊

Typical ovoid cross section of a glacier-borne subfossil wood! 🌲

1 day ago 57 13 2 0
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Ecological drivers and phylogenetic patterns of leaf minimum conductance variability in vascular plants Stomatal closure prevents significant water losses during drought events. Yet, leaves are not perfectly hermetic and dehydration ensues through residual water losses, known as minimum conductance (g.....

📄 A new paper by @santiagotrueba.bsky.social and co-authors in @newphyt.bsky.social on leaf minimum conductance in 101 vascular plant species, including ferns, gymnosperms & flowering plants 🌿🌲🌸💧 #botany #plantScience
Link: doi.org/10.1111/nph....

1 day ago 7 3 0 0
Photo of the base of a palm with a mass of dark, thick roots with red root tips emerging from the stem above the soil surface and growing downward. A small garden sign identifies the palm as C. harlandii. Photo by Scott Zona CC BY-NC 2.0.

Photo of the base of a palm with a mass of dark, thick roots with red root tips emerging from the stem above the soil surface and growing downward. A small garden sign identifies the palm as C. harlandii. Photo by Scott Zona CC BY-NC 2.0.

A photo looking up into a very tall cone of aerial stilt roots. The crown of the pandan is obscured by nearby palm leaves. A baseball cap provides scale. Photo by Scott Zona CC BY-NC 2.0.

A photo looking up into a very tall cone of aerial stilt roots. The crown of the pandan is obscured by nearby palm leaves. A baseball cap provides scale. Photo by Scott Zona CC BY-NC 2.0.

To see prop roots on a larger scale, look to the palms and pandans. 📷1: Clinostigma harlandii, a palm. 📷1: Pandanus sp (to get an idea of the scale of this giant, check out the green cap in the lower left). #Arecaceae #Pandanaceae #root #Botany 🌾🧪🌱

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📣 Abstract submission is now opened for the 12th European #Paleobotany and #Palynology Congress : www.uni-muenster.de/GeoPalaeonto... 🌿⛏️ Deadline is May 31. Don't hesitate to contact me if you have any questions about our symposium for early career researchers.

1 day ago 8 11 0 0
close up of purple toothwort flowers emerging from the ground

close up of purple toothwort flowers emerging from the ground

Went to visit one of the rogue populations of Lathraea clandestina in Hampshire yesterday.

This root parasite is in full bloom now, a glade full of them, hundreds upon hundreds of purple toothwort blooms erupting from the soil!

@bsbibotany.bsky.social #botany #naturalists

4 days ago 36 5 3 0
Close up of an Ophrys flower

Close up of an Ophrys flower

Little phone macro lense doing a great job with #orchids today! 🌸☀️ #botany

3 days ago 20 6 0 0
A fossil root - a black elongate structure in the middle of a yellowish, ~20 cm scale sandstone bed. It looks like the cross section through a tube, with smaller black protrusions (which were rootlets in life)

A fossil root - a black elongate structure in the middle of a yellowish, ~20 cm scale sandstone bed. It looks like the cross section through a tube, with smaller black protrusions (which were rootlets in life)

Fossil corals - small circles in a light coloured rock that look about the size of a pea, and are actually the tops of individual corals that are living in a colony. In the middle is a larger coral, which is a circle, and has radial lines, a bit like a bike wheel

Fossil corals - small circles in a light coloured rock that look about the size of a pea, and are actually the tops of individual corals that are living in a colony. In the middle is a larger coral, which is a circle, and has radial lines, a bit like a bike wheel

The underside of a yellow, coarse sandstone bed, which is criss crossed with ~5cm scale intersecting lines

The underside of a yellow, coarse sandstone bed, which is criss crossed with ~5cm scale intersecting lines

For #FossilFriday, since I'm in the field with second year undergrads in Scotland, here is a lovely fossil plant root we found in Upper Carboniferous sediments. Plus a coral, and some amazing bioturbation on the underside of a bed!

⚒️🧪🦀🦑 #evosky

4 days ago 36 9 1 1

Excellent! 🎉

4 days ago 1 0 1 0
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Eeee!!!! So, good news: me and @lepidodendron.bsky.social will be co-hosting a symposium at EPPC this year looking at plant Paleoart!!!!! This has been a long time coming, so I'm incredibly excited that we can finally announce it! #paleoart #paleobotany #conference #FossilFriday #botany

4 days ago 84 26 7 0
Close-up of a mammilaria cactus with sharp spines. A delicate white flower with pink stripes blooming at its center.

Picture: Thomas Hammerich

Close-up of a mammilaria cactus with sharp spines. A delicate white flower with pink stripes blooming at its center. Picture: Thomas Hammerich

🌼 #FlowerFriday 🏜

Beauty in the harshest places 🌵

A delicate #mammilaria bloom surrounded by armor 🌸

🌱 #Cactus #Succulents
#Bloom #gardening

4 days ago 38 3 0 0

Our 2025 paper in @annbot.bsky.social is now free to read 🎉 Go check this little guy! 🌲⛏️ 🇦🇶 #paleobotany #fossil #tree #botany

5 days ago 9 3 0 0
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APG V Survey - Extended Deadline Dear Colleagues: We are soliciting community input on a draft of APG V, which is available at https://docs.google.com/document/d/1M8ZWZoJTj1mFYUe_bRKrP-NCwwEzoGuC/edit?usp=sharing&ouid=11366933678134...

Revision of the Angiosperm Phylogeny Group (APG) classification has been underway! The group is requesting community feedback until April 22nd. Here is a link to a survey to gather feedback, which includes links to the manuscript and the new classification:

docs.google.com/forms/d/e/1F...

6 days ago 21 19 0 0
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The eternal struggle of trees: a commentary on ‘A dwarf conifer tree from the Triassic of Antarctica: the first fossil evidence of suppressed growth in a favourable climate?’ All major lineages of living vascular plants have tried their hands at being trees; this repeated evolution of the woody, single-trunked growth form has be

✅📄Now Free Access: The eternal struggle of trees: a commentary on ‘A dwarf conifer tree from the Triassic of Antarctica: the first fossil evidence of suppressed growth in a favourable climate?’
Get the Paper: doi.org/10.1093/aob/...

1 week ago 5 2 0 0
News - Geobios | ScienceDirect.com by Elsevier Read the latest articles of Geobios at ScienceDirect.com, Elsevier’s leading platform of peer-reviewed scholarly literature

The editorial board of Geobios aims to support 2 early career researchers (PhD or postdoc) in #palaeontology, #palaeobiology, #palaeoecology, #palaeobiogeography, (bio) #stratigraphy or #biogeochemistry.
Each award is 500€. Deadline May 31. All the information: www.sciencedirect.com/journal/geob...

1 week ago 7 5 0 0
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Palms of the past: can morphometric phytolith analysis inform deep time evolution and palaeoecology of Arecaceae? AbstractBackground and aims. Palm fossils are often used as evidence for warm and wet palaeoenvironments, reflecting the affinities of most modern palms. H

♻️🆓: Palms of the past: can morphometric phytolith analysis inform deep time evolution and palaeoecology of Arecaceae?
doi.org/10.1093/aob/...

#PlantScience

1 week ago 6 2 0 0
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Plants Have Sperm. But Only Some Can Swim. From swimming cells to pollen tubes, plants solved the same problem in two very different ways

Plants have sperm.

Some of it swims.

Which means a patch of moss after rain isn’t just wet… it’s a place where cells are actively moving to reproduce.

Most plants don’t do this anymore.

So why do mosses and ferns still need water?
🧪 #SciComm
buff.ly/lMiZDw9

1 week ago 18 3 0 2
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Photo of 5 spore capsules on thin orange stalks. The spore capsules look like tiny barrels, horizontal in orientation. The barrel tops (except for one) have orange covers with a bird beak like structure in the middle. One capsule has lost its cover, revealing what looks like a fine mesh screen over the barrel top/opening.

Photo of 5 spore capsules on thin orange stalks. The spore capsules look like tiny barrels, horizontal in orientation. The barrel tops (except for one) have orange covers with a bird beak like structure in the middle. One capsule has lost its cover, revealing what looks like a fine mesh screen over the barrel top/opening.

Polytrichum moss spore capsule. NWT, Canada. #moss #bryophyte #plants. Each spore capsule is about 5mm in the longest dimension.

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Close ups of flowers. Left to right, top to bottom (genus or species name + common names in English / French) 
1. Muscari comosum (tasel hyacinth / muscari à toupet)
2. Anthirrinum sp (snapdragon / muflier) 
3. Euphorbia characias (Mediterranean spurge / euphorbe des garrigues) 
4. Asphodelus sp (asphodel / asphodel) 
5. Cistus sp (rock rose / ciste) 
6. Aphyllanthes monspeliensis

Close ups of flowers. Left to right, top to bottom (genus or species name + common names in English / French) 1. Muscari comosum (tasel hyacinth / muscari à toupet) 2. Anthirrinum sp (snapdragon / muflier) 3. Euphorbia characias (Mediterranean spurge / euphorbe des garrigues) 4. Asphodelus sp (asphodel / asphodel) 5. Cistus sp (rock rose / ciste) 6. Aphyllanthes monspeliensis

And of course a lot of angiosperms doing their thing (names in alt-text) 🌸🌻🌼 #botany #flowers

1 week ago 11 1 0 0
A small pine tree in front of a Mediterranean landscape with short vegetation on limestone hills.

A small pine tree in front of a Mediterranean landscape with short vegetation on limestone hills.

A beautiful Salzmann pine #tree (Pinus nigra subsp. salzmannii) on a hike near St Guilhem-le-désert today 🌲💚 #botany

1 week ago 13 0 1 0
Transverse section of fossil wood showing files of polygonal to rounded conducting cells and 5 rays (the brown vertical "lines")

Transverse section of fossil wood showing files of polygonal to rounded conducting cells and 5 rays (the brown vertical "lines")

#FossilFriday reminder that there are very old fossil #plants with very well preserved cellular detail!
This is a piece of wood from a tree that grew ~340 million years ago (early Carboniferous) in what is now France, prepared as thin-section & seen under the microscope 🔬 🌿⛏️ #paleobotany #botany

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Asphodelus fistulosus. Filaments are kind of special!

#wildflowers #botany

2 weeks ago 8 3 0 0
A bed of well soaked green moss with thin sporophytes emerging. On the end most capsules have a blob of rain water held in place by surface tension. The rain blobs are extremely clear and act as magnifiers

A bed of well soaked green moss with thin sporophytes emerging. On the end most capsules have a blob of rain water held in place by surface tension. The rain blobs are extremely clear and act as magnifiers

Water drops on sporophytes #moss

2 weeks ago 73 14 0 1
Photo of a wood understory with a fern with unfurling scaly fronds and right in front of it bright purple toothwort flowers emerging from the ground

Photo of a wood understory with a fern with unfurling scaly fronds and right in front of it bright purple toothwort flowers emerging from the ground

Unfurling fern for #FernFriday, eclipsed by bright flowers of purple toothwort (Lathrea clandestina), who parasites the roots of surrounding trees 🌿
#botany

2 weeks ago 20 6 0 0
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Francis Hallé (1938–2025), founder of the study of tree architecture Francis Hallé (1938-2025) was one of the most influential French botanists of the last century. He founded plant architectural analysis, showing that post-embryogenic development follows intrinsic,...

A short comment on Francis Hallé's career and legacy in press in Botany Letters, the journal of @societebotaniquedefrance.fr
doi.org/10.1080/2381...
#botany #trees

3 weeks ago 3 3 0 0
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#Paleobotany This #FossilFriday is dedicated to the Famennian fern-like plant Rhacophyton, a striking example of how reconstructing whole plants from fragmentary individuals remains challenging, even with thousands of specimens. Unraveling its architecture is also at the heart of my ongoing research

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A foto mostra uma tronco petrificado de +1m de diámetro, visto em corte, de cor cinzenta com a borda amarelada, com muitos anéis de crescimento visíveis e uma mão humana sobre ele.

A foto mostra uma tronco petrificado de +1m de diámetro, visto em corte, de cor cinzenta com a borda amarelada, com muitos anéis de crescimento visíveis e uma mão humana sobre ele.

Apenas um tronco petrificado passando por aqui. Ele pertence a uma gimnosperma (pinheiros, araucárias e companhia) e viveu na Era Paleozoica. Duque Bacelar, MA. #FossilFriday

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M. Krings, C. Harper & I are organizing a symposium for early career researchers:
-👤students to 2 years post PhD
-🌿 any #paleobotany or #palynology subject
- 💶 awards for the 3 best talks
We hope to gather a diversity of subjects & presenters. Don't hesitate to contact me if you have questions!

2 weeks ago 9 8 0 0
European Palaeobotany and Palynology Conference

📣📣 The 12th European Paleobotany and Palynology Congress will take place September 20-24 in Münster 🇩🇪 🌿⛏️ Abstract submission will be opened from mid-April to May 31. All the information is now online here: www.uni-muenster.de/GeoPalaeonto...
#paleobotany #palynology #palaeobotany

2 weeks ago 18 9 1 1
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Introducing a new citizen science nature app that’s geared towards the scientific community Pl@ntNet, the “shazam” for plants is a well-known app among the hiking community and nature enthusiasts, but not many know that it’s a precious resource for scientists.

Introducing a new citizen science nature app that’s geared towards the scientific community

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