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3354-24. 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, 2023Similar picturesLarge thumbnails | Use small thumbnails | View as slideshow |
 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  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  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  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  Tissues (in Melzer) 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  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  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  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 (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  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  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  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  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  Leaves of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023  Leaves of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023  Squaw-weed flowers (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 29, 2024  Squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 29, 2021  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  Basal leaves of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 24, 2021  Flower buds of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 3, 2022  Shoot of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, February 26, 2023  Leaves of squaw-weed (Senecio ampullaceus) on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, December 21, 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  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  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  Blooming squaw-weed (Senecio) on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021  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  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 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  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  Squaw-weed (Senecio ampullaceus) in Lick Creek Park. College Station, Texas, March 20, 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  Underside of a leaf of spring scorpion grass (Myosotis macrosperma) with rust fungus Puccinia eatoniae var. myosotidis(?) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 12, 2022  Gall from underside of a leaf of squaw-weed (Senecio ampullaceus) in Bee Creek Park. College Station, Texas, April 9, 2024  Underside of a leaf of crane s bill (Geranium carolinianum) with white web-like downy mildew fungus Plasmopara geranii or may be P. pusilla on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023  Close-up of a leaf of Ipomoea lacunosa with rust fungus Coleosporium ipomoeae at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Both sides of a leaf of Ipomoea lacunosa with rust fungus Coleosporium ipomoeae at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023  Pattern of orange rust fungus Coleosporium ipomoeae on a leaf of Ipomoea lacunosa at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Texture of orange rust fungus Coleosporium ipomoeae on a leaf of Ipomoea lacunosa at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Orange spots of rust fungus Coleosporium ipomoeae on a leaf of Ipomoea lacunosa at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Details of orange rust fungus Coleosporium ipomoeae on a leaf of Ipomoea lacunosa at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Orange spots of rust fungus Coleosporium ipomoeae on underside of a leaf of Ipomoea lacunosa at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Close-up of orange spots of rust fungus Coleosporium ipomoeae on a leaf of Ipomoea lacunosa at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Texture of orange spots of rust fungus Coleosporium ipomoeae on a leaf of Ipomoea lacunosa at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Underside of a leaf of whitestar morning-glory (Ipomoea lacunosa) with rust fungus Coleosporium ipomoeae at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Flower of whitestar morning-glory (Ipomoea lacunosa) and a leaf with rust fungus Coleosporium ipomoeae at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Rust fungus Puccinia eatoniae var. myosotidis(?) on underside of a leaf of spring scorpion grass (Myosotis macrosperma, Boraginaceae) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 3, 2022  Whitestar morning-glory (Ipomoea lacunosa) with a flower and a leaf with orange spots from rust fungus Coleosporium ipomoeae at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Flower buds of squaw-weed (Senecio ampullaceus) in Anderson Arboretum in Bee Creek Park. College Station, March 7, 2024  Wart disease (false rust) caused by fungus Synchytrium geranii (Chytrids) on crane s bill (Geranium carolinianum) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023  Spring scorpion grass (Myosotis macrosperma) with rust fungus Puccinia eatoniae var. myosotidis(?) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 12, 2022  Unfolding leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023  Rosette of leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023  Basal rosette of leaves of squaw-weed (Senecio ampullaceus) on a recent cutting in Lick Creek Park. College Station, Texas, March 15, 2020  Mock Bishop s Weed (Ptilimnium nuttali) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, May 7, 2023  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  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  Aeciospores of blackberry rust fungus Gymnoconia nitens, collected on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 2, 2024  Brown corticioid (crust) fungus Dichostereum effuscatum with white web-like fungus Sporophagomyces on bark of a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023  Common groundsel (Senecio vulgaris) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023  Flower buds of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2022  Flower buds of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024  Aeciospores of blackberry rust fungus Gymnoconia nitens at low magnification, collected on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 2, 2024  Orange berry rust fungus Gymnoconia nitens on shoots of blackberry on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 2, 2024  Leaves of squaw-weed (Senecio ampullaceus) in Bee Creek Park. College Station, Texas, February 26, 2024  Shoot of squaw-weed (Senecio ampullaceus) with flower buds in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024  Basal rosette of leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022  Orange berry rust fungus Gymnoconia nitens on young leaves of blackberry on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 2, 2024  Aeciospores of blackberry rust fungus Gymnoconia nitens (stacked image), collected on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 2, 2024  Oak Curtain Crust fungus (Hymenochaete rubiginosa) on a fallen juniper (spore print white) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023  Leaves of crane s bill (Geranium carolinianum) with white web-like downy mildew fungus Plasmopara geranii or may be P. pusilla on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023  Leaves of Ipomoea lacunosa with rust fungus Coleosporium ipomoeae at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Texture of aeciospores of blackberry rust fungus Gymnoconia nitens (stacked image), collected on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 2, 2024  Cucumber weed (Parietaria pensylvanica) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023  Cucumber weed (Parietaria pensylvanica) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023  Leaves of Ipomoea lacunosa damaged by rust fungus Coleosporium ipomoeae at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Narrow-leaf false dragonhead (Physostegia angustifolia(?)) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, May 7, 2023  Shoots of cucumber weed (Parietaria pensylvanica) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023  Emerging cucumber weed (Parietaria pensylvanica) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023  Close-up of cucumber weed (Parietaria pensylvanica) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023  Brown corticioid (crust) mushroom Dichostereum effuscatum and white web-like parasitic fungus Sporophagomyces on bark of a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023  Blooming whitestar morning-glory (Ipomoea lacunosa) with rust fungus Coleosporium ipomoeae at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  Spores of rust fungus Puccinia eatoniae var. myosotidis(?) from spring scorpion grass collected at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 3, 2022  Leaves of whitestar morning-glory (Ipomoea lacunosa) with rust fungus Coleosporium ipomoeae at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021  White patch of corticioid fungus Dendrothele nivosa on bark of Eastern red cedar (Juniper) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 18, 2021  White prickly poppy (Argemone albiflora) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 26, 2023 |