ALDecombeix 🌿

@[email protected]
319 Followers
137 Following
101 Posts
Paleobotanist interested in the diversity, evolution & biology of plants - fossil and living.
CNRS researcher @UMR AMAP, Montpellier, FR. She/Her
📷 my own unless stated otherwise
#paleobotany #botany #evolution #paleontology #plants #fedi22 🌿⛏️
Websitehttps://annelauredecombeix.wordpress.com
Birdsitehttps://twitter.com/ALDecombeix
ALDecombeix 🌿Oct 6, 2023
Happy #FossilFriday! This is a close up of Neuropteris foliage 🌿 from the late Carboniferous (~300 million years ago), showing details of the venation. #paleobotany #fossil #plant #leaf
ALDecombeix 🌿Sep 29, 2023
Foliage of the progymnosperm tree Archaeopteris from the Devonian of the US. Archaeopteris is one of the oldest trees & was a major component of Late Devonian ecosystems >360 million years ago. It had a gymnosperm type of wood but reproduced by spores.
#paleobotany #FossilFriday #fossil #plant #tree
ALDecombeix 🌿Aug 25, 2023
Fragment of a 300 million years old #fern frond for this #FossilFriday 🌿⛏️ #paleobotany #plant #fossil
Show threadALDecombeix 🌿Aug 15, 2023
This branching is repeated and gives older individuals a very peculiar shape. Although they don't have wood, dragon trees have a secondary thickening meristem and can become quite large and tall, like this one seen 2 years ago in the Domaine du Rayol gardens. 3/3
Show threadALDecombeix 🌿Aug 15, 2023
Dragon trees (Dracaena) first have an unbranched trunk. After the first flowering the apical part dies and lateral buds form the first branches (sympodial branching). This is what was hidden under the leaves! 2/3
ALDecombeix 🌿Aug 15, 2023
It's not much taller than me but it's a baby dragon! 🐲🌳 Let's look under the leaves (and spook people passing by in the botanical garden) 🤓 1/3
#treeTuesday #botany #plant
ALDecombeix 🌿Aug 4, 2023
Can you guess which type of (non fossil) plant this pen holder is made from? 🌿🖋️ Answer tomorrow!
#plant #botany
ALDecombeix 🌿Jul 28, 2023
Trying to understand the (not so easy) life of a small tree that grew 240 million years ago...Look at these inner vs. outer rings! 🌲⛏️ Happy #fossilfriday ! #paleobotany #plant #fossil
ALDecombeix 🌿Jul 21, 2023
Thin-section showing the preserved tissues of a lycopsid cone from the early Carboniferous of France 🌿⛏️
Each small circle contains vascular tissue going to one of the sporophylls* and is only ~0.1 mm in diameter!
Happy #FossilFriday!
#paleobotany #plant #fossil #botany
*leaves bearing the sporangia
ALDecombeix 🌿Jul 7, 2023
#FernFriday & #FossilFriday today, with two Marratiales 🎉
🌿 The living king fern Angiopteris evecta. Height: several meters.
🌿⛏️ A section in a >300 million years old rootlet of the fossil tree fern Psaronius. Rootlet diameter: a few millimeters.
#fern #paleobotany #plant #fossil