Photo of the trunk of the tree with hardened flows of cream-colored resin.

I hope you enjoyed these two weeks of resin. Want more? I enthusiastically recommend Jean H. Langenheim’s encyclopedic "Plant Resins: Chemistry, Evolution, Ecology, and Ethnobotany."

I’ll leave you with this spectacular resin flow from Wollemia nobilis. #Araucariaceae #resin #Botany 🌾🧪🌱

Photo of a lump of resin displayed with a sign reading “Touch me. I’m over 20,000 years old.”

Photo of a museum display of polished lumps of amber.

Agathis resin has properties that make it superior for manufacturing varnishes, but like other resins, it can fossilize to form a kind of amber. #Araucariaceae #resin #Botany 🌾🧪🌱
📷1: Kauri resin, Gum Diggers Park, Waiharara, NZ. Jan Helebrant CC0
📷2: Kauri Museum. Tatiana Gerus CCBY2

Close-up photo of a flow of pink resin drying on the bark of a tree. There are numerous droplets and threads of hardened resin. Photo by Scott Zona CC BY-NC 2.0.

Sticky resin can gum up the mouthparts of insect herbivores & may be unpalatable. Also, resin dries to form a waterproof cap over the wound, which prevents secondary fungal & bacterial infection. 📷: Araucaria luxurians #Araucariaceae #resin #Botany 🌾🧪🌱

Close-up photo of a mass of orange resin drying on the bark of a tree. A hardened droplet hangs by a dried thread of resin. Photo by Scott Zona CC BY-NC 2.0.

Even today, resins have plenty of economic uses, but what do resins do for plants? First & foremost, they are defensive compounds. Resins are carried in resin canals, which, when breached, flood the wound with sticky sealant. 📷: Araucaria columnaris #Araucariaceae #resin #Botany

My Wollemia nobilis seedlings 2024
#wollemia #wollemianobilis #araucariaceae

Bark
Agathis atropurpurea
Araucariaceae
#AgathisAtropurpurea #Araucariaceae #PurpleKauri #TreeBark #Bark #Botany #ozplants #ozflora #AustralianFlora #Australiannature #wildoz #nature

Araucaria cunninghamii (#4)
Araucariaceae
Emu Park, Central Queensland,
#AraucariaCunninghamii #Araucariaceae #HoopPine #Conifer #ozplants #Australiannature #botany #wildoz #ozflora #AustralianFlora

Araucaria cunninghamii (#3)
Araucariaceae
Emu Park, Central Queensland,
#AraucariaCunninghamii #Araucariaceae #HoopPine #Conifer #ozplants #Australiannature #botany #wildoz #ozflora #AustralianFlora

Araucaria cunninghamii (#2)
Araucariaceae
Emu Park, Central Queensland,
#AraucariaCunninghamii #Araucariaceae #HoopPine #Conifer #ozplants #Australiannature #botany #wildoz #ozflora #AustralianFlora

Araucaria cunninghamii (#1)
Araucariaceae
Emu Park, Central Queensland,
#AraucariaCunninghamii #Araucariaceae #HoopPine #Conifer #ozplants #Australiannature #botany #wildoz #ozflora #AustralianFlora

Araucaria bidwillii
Araucariaceae
Seed and fruit
#AraucariaBidwillii #Araucariaceae #BunyaPine #Bunya-Bunya #Seeds #NativeSeeds #ozplants #ozflora #Australiannature #botany #biodiversity

Araucaria cunninghamii var. glauca
Araucariaceae
Cone and seed

#Conifer #TropicalConifer #Araucaria cunninghamii var glauca #Araucariaceae #HoopPine #MagneticIslandHoopPine #ozplants #ozflora #Australiannature #botany #biodiversity

Araucaria heterophylla cones
syn. A. excelsa,
Norfolk Island
November 2023
#Araucaria #Araucariaceae #Conifer #NorfolkIsland #landscapephotography #SouthPacificOcean

Crepuscule and Araucaria heterophylla
syn. A. excelsa
Norfolk Island
November 2023
#NorfolkIsland #landscapephotography #sunset #Araucaria #Araucariaceae #Conifer #Cerpuscule #cloudscape #SouthPacificOcean

Araucaria heterophylla
Evening, Norfolk Island,
November 2023
#Wildoz #OzFlora #Araucaria #Araucariaceae #ozflora #ozplants #Australiannature #botany #TropicalConifirs #NorfolkIsland

Araucaria araucana (Molina) K.Koch
#botany #Araucariaceae #taxonomy #plantsci #Lankester #PlantBlindnesss #PlantAwareness #gymnosperms #plants #biodiversity #naturephotography #nature #science #everydayplants #gymnosperms
@IndurotUniovi @UOdivulga @uniovi_info