Latest posts tagged with #Pinaceae on Bluesky
Photo of a bag of pine nuts from Costco.
All this talk of endosperm applies only to Flowering Plants (Angiosperms), which have triploid endosperm. Gymnosperms, like pines, cycads, & junipers, do NOT have endosperm. In their seeds, the nutritive storage tissue is the female gametophyte, which is haploid. #seed #Pinaceae #Botany πΎπ§ͺπ±
Geographic conservation patterns of three dominant ectomycorrhizal (EcM) fungal genera (Sebacina, Russula and Inocybe) associated with global Pinaceae hosts.
#PhylogeneticConservatism sustains stable associations across #Pinaceae genera (#Ectomycorrhiza), while environmental filtering drives species-specific community differentiation at local scales on the #Qinghai_TibetanPlateau.
#CommunityAssembly | #Phylogeny
doi.org/10.1093/jpe/...
Photo of needle-bearing shoot with pinecones. The cones are closed.
Pinus banksiana cones are strongly serotinous in populations in the center of the speciesβ range, but less so at the edges of its range (where fires are less frequent). It's a bet-hedging strategy to ensure seedling establishment. π·: Taylor Justason CCBYNC4. #Pinaceae #serotiny #Botany πΎπ§ͺπ±
Photo of needle-bearing shoot with pinecones. The cones are closed. Photo by Scott Zona CC BY-NC 2.0.
Pinus radiata releases seeds when the temperature goes above 45Β°C (113Β°F). Sometimes that threshold temperature can be reached by passive solar heating of the cones if they are exposed to sunlight on the tree or on the ground. They can open even without fire. #Pinaceae #serotiny #Botany πΎπ§ͺπ±
Photo of a pine branch with older, mature, closed cones and younger, smaller cones. The younger cones are at the distal end of the shoot. Photo by Scott Zona CC BY-NC 2.0.
Serotiny means that the seeds are stored on the mother plant, that they are retained 1+ yr (up to 10+ yr), & that high temp. (usually from fire) is involved in the release of the seeds. π·: Pinus pinaster. Note 2 generations of seed cones on the shoot. #Pinaceae #serotiny #Botany πΎπ§ͺπ±
Photo of two cones attached to a branch. The pinecones are closed. Photo by Scott Zona CC BY-NC 2.0.
Serotiny is the storage of seeds in close cones or fruits, trapping the seeds & preventing dispersal until the cones are heated (usually by fire). Post-fire conditions are ideal for germinating seedlings. These are cones of Pinus clausa of the SE USA. #Pinaceae #serotiny #Botany πΎπ§ͺπ±
γπLatest accepted articleγ
Evolutionary history and environmental filtering jointly structure ectomycorrhizal fungal communities across Qinghai-Tibetan #Pinaceae forests
#Ectomycorrhiza | #CommunityAssembly | #Phylogeny | #Qinghai-TibetanPlateau
@mapjournals.bsky.social
doi.org/10.1093/jpe/...
Larch is turning gold on the high elevation slopes! So cool that a member of the Pinaceae family changes in the fall.
#larch #fallcolors #pinaceae
Ein klarer See dessen Wasser vor den dunklen BΓ€umen hervorsticht
#Blue #Cloud ##Forest #Outdoors #PineWoodland #Nature #ConiferousTree #Landscape #PineTree #Pinaceae #Lake
Vintage black and white photo of three men standing under pine trees. Two men hold tools for wounding the trees. The third man stands next to a barrel and other resin-collecting containers.
Naval stores were the economic foundation of North Carolina. Pine resin sealed & waterproofed ships, so tons were collected. Resin collectors inspired the stateβs nickname: The Tarheel State. π·: Resin collectors, H.H. Brimley Collection, State Archives of NC. #Pinaceae #resin #Botany πΎπ§ͺπ±
Close-up photo of tree bark with dried resin flow. The resin is a pale, buttery yellow. Photo by Scott Zona CC BY-NC 2.0.
Itβs resin week! Letβs get stuck in. Resins are complex, viscous mixtures of organic compounds, including terpenes, phenolics & alcohols. They are found throughout the Plant Kingdom, most notably in conifers. π·: Pinus taeda. #Pinaceae #resin #Botany πΎπ§ͺπ±
Spectacular Clouds #Cloud #ConiferousTree #Forest #Hill #MountainRange #Mountain #Landscape #Nature #Outdoors #Pinaceae #Plant
Pinus radiata D.Don
#botany #Pinaceae #gymnosperms #science
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Photo (2018) of large bonsai plant "European Larch" on display in a large oval brown pot on a wooden table at the Matthaei Botanical Gardens outdoor bonsai display, University of Michigan. Looks like an actual tree with pine clusters branching out from four "trunks". The base is covered in moss. European Larch Larix decidua Pinaceae Started ---- Trained since 1999 Donor: Gordon Hoialmen Thursdayβ, βJuneβ β14β, β2018 16:31 Matthaei Botanical Gardens, University of Michigan 1800 North Dixboro Road, Ann Arbor, MI 48105 "European Larch" #MatthaeiBotanicalGardens #Larch #PhotoGraphicArt #digitalPhotographybyneileclement Photo Β© 2018 Neil E Clement, All Rights Reserved
"European Larch"
Trained since 1999 / Donor: #Gordon_Hoialmen
#MatthaeiBotanicalGardens #Larch #PhotoGraphicArt #digitalPhotographybyneileclement
#EuropeanLarch #Pinaceae #Larixdecidua
Photo Β© 2018 Neil E Clement, All Rights Reserved
Photo of a branch of a pine tree with two cones whose scales are tightly closed.
The cones of some confers remain closed, trapping the seeds & preventing dispersal, until the cones are licked by fire. This is called serotony. Post-fire conditions are ideal for the establishment of germinating seedlings. These are the cones of Pinus clausa. #Pinaceae #dispersal #botany πΎπ§ͺπ±
Photo of the surface of a pond covered in pollen.
It's pollen season in North Carolina. This is mostly Pinus pollen, but red oaks are doing their part too. And sweetgum. The image is an actual photo from inside my lungs. π€§ #Pinaceae #allergy #pollen
Photo of the scrub, with sand pines in the background and bare patches of brilliant white sand in the foreground. Photo: Scott Zona CC BY-NC 2.0.
I no longer live in #Florida, but my heart will always be in the Scrub. This xeric habitat occurs on ancient dunes, like the Lake Wales & Atlantic Coastal Ridges. The canopy is usually Sand Pine (Pinus clausa; #Pinaceae), & the sterile white sand looks like snow. #scrub #Botany #PlantScience πΎπ§ͺ
