 Spores (in Melzer) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) together with conidia of Alternaria leaf spot(?), collected from white powdery stuff with web from underside leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos a day before. Texas, March 7, 2023
 Spores an conidia(?) (in KOH) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?), collected from white powdery stuff with web from underside leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos a day before. Texas, March 7, 2023
 Underside of a leaf of squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Underside of leaves of squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) in Lick Creek Park. College Station, Texas, March 20, 2023
 Close-up of underside of leaves of squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) in Lick Creek Park. College Station, Texas, March 20, 2023
 Squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Leaves of squaw-weed (Senecio ampullaceus) with light yellow areas on leaves caused by sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Spores and tissues (at low magnification) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) from white spots on leaves of squaw-weed (Senecio ampullaceus) collected on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, February 17, 2024
 Underside of a leaf of squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Leaf of squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Spores (in Congo Red) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) from white spots on leaves of squaw-weed (Senecio ampullaceus) collected on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, February 17, 2024
 Spores (in lugol) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) from white spots on leaves of squaw-weed (Senecio ampullaceus) collected on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, February 17, 2024
 Leaves of squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, February 17, 2024
 Spores (in KOH) of white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) from a leaf of squaw-weed (Senecio ampullaceus), collected near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Rosette of leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Unfolding leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Basal rosette of leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 7, 2024
 Leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Rosette of leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 24, 2021
 Basal rosette of leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 8, 2021
 Winter rosette of leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 24, 2021
 Blooming squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Blooming squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2022
 Squaw-weed flower (Senecio ampullaceus) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2008
 Flowers of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 9, 2019
 Flower buds of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Flower buds of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2022
 Shoot of squaw-weed (Senecio ampullaceus) with flower buds in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Rosette of hairy leaves of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Squaw-weed flower (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 5, 2008
 Flower buds and young leaves of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Flower buds and young leaves of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Squaw-weed (Senecio ampullaceus) in Lick Creek Park. College Station, Texas, March 20, 2023
 Leaves of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023
 Leaves of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Squaw-weed flowers (Senecio ampullaceus) in Lick Creek Park. College Station, Texas, March 20, 2023
 Flower buds of squaw-weed (Senecio ampullaceus) in Lick Creek Park. College Station, Texas, March 20, 2023
 Basal rosette of leaves of squaw-weed (Senecio ampullaceus) on a recent cutting in Lick Creek Park. College Station, Texas, March 15, 2020
 Unfolding flowers of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Flower buds of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Flower buds of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Leaves of squaw-weed (Senecio ampullaceus) in Bee Creek Park. College Station, Texas, February 26, 2024
 Gall from underside of a leaf of squaw-weed (Senecio ampullaceus) in Bee Creek Park. College Station, Texas, April 9, 2024
 Leaves of squaw-weed (Senecio ampullaceus) on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, December 21, 2023
 Spores (in lugol) of white rust fungus of crucifers (Albugo candida) from tansy mustard, collected near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Hairy leaves of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, February 26, 2023
 Spores and mycelium (in lugol) of white rust fungus of crucifers (Albugo candida) from tansy mustard, collected near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Spores (in lactofenol blue) of white rust fungus of crucifers (Albugo candida) from tansy mustard, collected near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Spores (in lugol, with x100 objective) of white rust fungus of crucifers (Albugo candida) from tansy mustard, collected near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Spores and mycelium (in lugol, with x40 objective) of white rust fungus of crucifers (Albugo candida) from tansy mustard, collected near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Cutleaf groundsel (butterweed, squaw weed, Senecio) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 15, 2009
 Groundsel (butterweed, squaw weed, Senecio) with spider web in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 26, 2010.
 Flower buds of squaw-weed (Senecio ampullaceus) in Anderson Arboretum in Bee Creek Park. College Station, March 7, 2024
 Flower buds of groundsel (butterweed, squaw weed, Senecio) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Opening flowers of groundsel (butterweed, squaw weed, Senecio) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Squaw-weed flowers (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 29, 2024
 Basal leaves of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 24, 2021
 Shoot of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, February 26, 2023
 Tissues of white powdery corticioid fungus from Toad Pond collected in Bastrop State Park. Bastrop, Texas, January 21, 2023
 Tissues (at low magnification) of white powdery corticioid fungus from Toad Pond collected in Bastrop State Park. Bastrop, Texas, January 21, 2023
 Tissues of white web-like fungus with hyphal cords from pine cones with some spore under a microscope in Melzer, collected on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 9, 2023
 Squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 29, 2021
 Spores (in Melzer) of white corticioid fungus from underside of a fallen water oak or elm collected two days before in Lick Creek Park. College Station, Texas, February 11, 2023
 Winter rosette of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 12, 2022
 Flower buds of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 18, 2021
 Tissues of a tiny red sphere from underside of leaf of bluebonnet with white spots caused by a fungus(?), collected near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Flower buds of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 3, 2022
 Swelling of a stem of tansy mustard (Descurainia pinnata) caused by white rust fungus of crucifers (Albugo candida) at Lake Somerville Trailway under oaks near Flag Pond, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Tissues of white powdery mildew fungus Podosphaera euphorbiae under a microscope, collected on Raccoon Run Trail in Lick Creek Park. College Station, Texas, April 11, 2022
 Sharp bend of a stem of tansy mustard (Descurainia pinnata) caused by white rust fungus of crucifers (Albugo candida) at Lake Somerville Trailway under oaks near Flag Pond, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Squaw-weed flowers in Washington-on-the-Brazos Historic Site. Washington, Texas, March 30, 2008
 Leaves of woolly-white (Hymenopappus artemisiaefolius) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Woolly-white (Hymenopappus) with petaloid white phyllaries (bracts) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023
 Spores of corn powdery mildew fungus Blumeria graminis (Erysiphe graminis) in Melzer, collected from grass on a lawn of apartments on George Bush Drive. College Station, Texas, March 13, 2023
 Spores (in Melzer) of white corticioid (crust) fungus from water oak or elm collected two days before in Lick Creek Park. College Station, Texas, February 11, 2023
 Tissues (in Melzer) of fungus Hyaloscypha britannica(?) from a burned pine log collected in Sam Houston National Forest near Richards. Texas, February 18, 2023
 Spores of white powdery corticioid fungus collected from oak trees in a dried Toad Pond in Bastrop State Park a day before. Texas, January 22, 2023
 Spores (in Melzer) of a mushroom Lepista sordida collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Opening flowers of Squaw-weed (Senecio) taken from a lawn outside of apartments on George Bush Drive. College Station, Texas, March 13, 2009
 Spores (in Melzer) of barometer earthstar mushrooms (Astraeus hygrometricus) collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 26, 2023
 Tissues infected by Juniper-hawthorn rust fungus (Gymnosporangium globosum) under a microscope in KOH, from upper surface of leaves of littlehip hawthorn (Crataegus spathulata), collected on Richards Loop Trail in Sam Houston National Forest. Texas, July 23, 2023
 Spores (under a microscope, in lugol) of white powdery corticioid fungus collected from oak trees in a dried Toad Pond in Bastrop State Park a day before. Texas, January 22, 2023
 Spores (soft) of white powdery crust fungus Athelia(?) from pine, collected 2 days before near Caney Creek in Sam Houston National Forest. Texas, January 2, 2023
 Spores of white powdery, with stripes corticioid fungus from a fallen hardwood tree, collected a day before in Lick Creek Park. College Station, Texas, January 3, 2023
 Close-up of opening flowers of Squaw-weed (Senecio) taken from a lawn outside of apartments on George Bush Drive. College Station, Texas, March 13, 2009
 Close-up of Squaw-weed (Senecio) flower buds taken from a lawn outside of apartments on George Bush Drive. College Station, Texas, March 13, 2009
 Various spores of fungi in white grainy substance from Protomyces(?) fungus near ascostromata of fungus Coccoidella scutula from upper surface of leaves of red bay (Persea borbonia) collected a day before in Little Thicket Nature Sanctuary. Texas, March 26, 2023
 Hyphae of white powdery corticioid fungus from Toad Pond collected in Bastrop State Park. Bastrop, Texas, January 21, 2023
 Spores (in lugol) of white powdery, with stripes corticioid fungus from a fallen hardwood tree, collected a day before in Lick Creek Park. College Station, Texas, January 3, 2023
 Winter rosette of leaves of woolly-white (Hymenopappus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 White grainy substance from Protomyces(?) fungus near parasitic Ascomycete fungus Coccoidella scutula from upper surface of leaves of red bay (Persea borbonia) under a microscope with x100 objective, collected a day before in Little Thicket Nature Sanctuary. Texas, March 26, 2023
 Various cells and spores of fungi near parasitic Ascomycete fungus Coccoidella scutula in white grainy substance from Protomyces(?) fungus from upper surface of leaves of red bay (Persea borbonia) collected a day before in Little Thicket Nature Sanctuary. Texas, March 26, 2023
 Mycelium and spores of fungi around parasitic Ascomycete fungus Coccoidella scutula in white grainy substance from Protomyces(?) fungus from upper surface of leaves of red bay (Persea borbonia) collected a day before in Little Thicket Nature Sanctuary. Texas, March 26, 2023
 Details of various cells and spores around parasitic Ascomycete fungus Coccoidella scutula in white grainy substance from Protomyces(?) fungus from upper surface of leaves of red bay (Persea borbonia) collected a day before in Little Thicket Nature Sanctuary. Texas, March 26, 2023
 Spores (in KOH) of white mushrooms Volvopluteus gloiocephalus from a lawn, collected a day before in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 17, 2023
 Underside of greenbrier leaves with rust fungus Puccinia smilacis, collected on Richards Loop Trail in Sam Houston National Forest. Texas, March 9, 2022
 White grainy substance from Protomyces(?) fungus near parasitic Ascomycete fungus Coccoidella scutula from upper surface of leaves of redbay tree (Persea borbonia) under a microscope with x40 objective, collected a day before in Little Thicket Nature Sanctuary. Texas, March 26, 2023
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