 Section of horse apple (osage orange, Maclura) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Bee Creek Park. College Station, Texas, October 4, 2024
 Fallen horse apple (Maclura) in ultraviolet light in Bee Creek Park. College Station, Texas, October 29, 2024
 Ball moss (Tillandsia recurvata) with seeds fallen from an oak both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Wolf Pen Creek Park. College Station, Texas, October 28, 2024
 Seeds of horse-apple (Osage orange, Maclura) eaten by squirrels on a park table in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, December 20, 2010
 Half-eaten fruit of maclura tree both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Bee Creek Park. College Station, Texas, July 31, 2026
 Horse-apple (Osage orange, Maclura) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, October 26, 2019
 Texture of horse-apple (Osage orange, Maclura) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, October 26, 2019
 Horse apple (osage orange) in Lemontree Park. College Station, Texas, October 29, 2013
 Horse dung on a sandy path both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, January 9, 2026
 Inflorescence of Bradford pea both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Wolf Pen Creek Park. College Station, Texas, October 9, 2024
 Rotting horse-apple (Osage orange, Maclura) with yeast fungus Cyberlindnera maclurae on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, October 26, 2019
 Flowers of a tree of apple family both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Wolf Pen Creek Park. College Station, Texas, March 6, 2025
 Horse apple (osage orange) on a trail in Lemontree Park. College Station, Texas, October 29, 2013
 Seeds of horse-apple (Osage orange, Maclura) eaten by animals at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, August 19, 2012
 Flowers and fruits of Lantana camara both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Bee Creek Park. College Station, Texas, October 15, 2024
 Leaf of a thistle (Cirsium) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, October 22, 2024
 Horse apple (osage orange) eaten by animals in Lemontree Park. College Station, Texas, October 29, 2013
 Blooming dog fennel (Eupatorium capillifolium) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, October 13, 2024
 Half rotten horse apple (osage orange) on a lawn in Lemontree Park. College Station, Texas, October 29, 2013
 Mold growing on horse apple (osage orange) on a lawn in Lemontree Park. College Station, Texas, October 29, 2013
 Molded rotting Horse apple (osage orange) on a lawn in Lemontree Park. College Station, Texas, October 29, 2013
 Blooming bastard pennyroyal (Trichostema dichotomum) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, October 1, 2024
 Leaves of purple bindweed (Ipomoea cordatotriloba) with insect holes both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Bee Creek Park. College Station, Texas, October 4, 2024
 Caps of ringless honey mushrooms (Desarmillaria caespitosa) both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, October 8, 2024
 Wild muskmelon (Cucumis melo, Dudaim melon) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, October 16, 2024
 Golden reishi mushroom (Ganoderma curtisii) with grass both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, October 23, 2024
 Horse-apple (Osage orange, Maclura) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 2, 2018
 Annual broomweed both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Greenway Trail. College Station, Texas, October 18, 2024
 Acorns from oaks both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Greenway Trail. College Station, Texas, October 18, 2024
 Cluster of young ringless honey mushrooms (Desarmillaria caespitosa) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, October 7, 2024
 Underside of a cluster of ringless honey mushrooms (Desarmillaria caespitosa) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, October 7, 2024
 Fluffy seeds of groundsel bush (seepwillow, Baccharis halimifolia) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, October 1, 2024
 Fallen fruits of trifoliate orange (Poncirus trifoliata) with citrus blue mold fungus Penicillium italicum both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, October 10, 2024
 Layers of yellow onion both in natural light and under 365 nm ultraviolet (UV-A) blacklight from HEB supermarket. College Station, Texas, October 3, 2024
 Green cabbage head both in natural light and under 365 nm ultraviolet (UV-A) blacklight from HEB supermarket. College Station, Texas, October 8, 2024
 Section of a cabbage head both in natural light and under 365 nm ultraviolet (UV-A) blacklight from HEB supermarket. College Station, Texas, October 8, 2024
 Close-up of yellow onion both in natural light and under 365 nm ultraviolet (UV-A) blacklight from HEB supermarket. College Station, Texas, October 3, 2024
 Texture of section of yellow onion both in natural light and under 365 nm ultraviolet (UV-A) blacklight from HEB supermarket. College Station, Texas, October 3, 2024
 Flower of powderpuff (Mimosa strigillosa) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Bee Creek Park. College Station, Texas, September 23, 2024
 Texture of water fern (Azolla) and duckweed both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Bee Creek Park. College Station, Texas, November 11, 2024
 Purple gerardia (Agalinis purpurea) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024
 Water fern (Azolla) and duckweed both in natural light and under 365 nm ultraviolet (UV-A) blacklight taken from a pond in Bee Creek Park. College Station, Texas, November 11, 2024
 Flowers of frostweed (Verbesina virginica) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024
 Fallen twigs and leaves on a walking path both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Wolf Pen Creek Park. College Station, Texas, January 30, 2025
 Green carpet of water fern (Azolla) and duckweed both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Bee Creek Park. College Station, Texas, November 11, 2024
 Close-up of water fern (Azolla) and duckweed both in natural light and under 365 nm ultraviolet (UV-A) blacklight from a pond in Bee Creek Park. College Station, Texas, November 12, 2024
 Close-up of water fern (Azolla) and duckweed both in natural light and under 365 nm ultraviolet (UV-A) blacklight from a pond in Bee Creek Park. College Station, Texas, November 12, 2024
 Salt-marsh fleabane (Pluchea odorata) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024
 Close-up of narrowleaf marsh elder (Iva angustifolia) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024
 Flowers of bastard pennyroyal (Trichostema dichotomum) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 17, 2024
 Water primrose (Ludwigia) with flower buds both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024
 Caps of oyster mushrooms (Pleurotus ostreatus) on a fallen oak both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, November 29, 2025
 Slender orange-bush lichen (Teloschistes exilis) both in natural light and under 365 nm ultraviolet (UV-A) blacklight on a twig from Nails Creek Unit of Somerville Lake State Park. Texas, September 22, 2024
 Young leaf of mustang grape (Vitis mustangensis) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024
 Blooming salt-marsh fleabane (Pluchea odorata) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024
 Elegant gayfeather (pinkscale, Liatris hesperelegans, former L. elegans) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 17, 2024
 Various crustose lichens on a weatered wooden bench both in natural light and under 365 nm ultraviolet (UV-A) blacklight in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, October 11, 2024
 Wooden bars of a bench with crustose lichens both in natural light and under 365 nm ultraviolet (UV-A) blacklight in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, October 11, 2024
 Close-up of fluffy seeds of wand blackroot (Pterocaulon virgatum) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024
 Side view of young oyster mushrooms (Pleurotus ostreatus) on a fallen oak both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, November 29, 2025
 Colors of crustose lichens on a weatered wooden bench both in natural light and under 365 nm ultraviolet (UV-A) blacklight in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, October 11, 2024
 Flowers of woolly croton (hogwort, Croton capitatus) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 17, 2024
 American Dagger Moth (Acronicta americana) caterpillar on Yaupon holly both in natural light and under 365 nm ultraviolet (UV-A) blacklight. Lick Creek Park. College Station, Texas, October 26, 2025
 Dissected dyeball mushroom (Pisolithus arhizus) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Greenway Trail. College Station, Texas, September 19, 2024
 Section of fruit of pomegranate both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Kroger supermarket. College Station, Texas, September 12, 2024
 Close-up of fruit of pomegranate both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Kroger supermarket. College Station, Texas, September 12, 2024
 Round patches of crustose lichen with bright orange fluorescence on a granite tomb both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
 Horse apple (osage orange) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 7, 2011
 Dry leaves of hackberry and elm both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Bee Creek Park. College Station, Texas, November 21, 2025
 Texture of Horse apple (osage orange) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 12, 2011
 Texture of Horse apple (osage orange) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 7, 2011
 Leaves of sycamore tree both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Bee Creek Park. College Station, Texas, December 21, 2025
 Chinaberry (Melia azedarach) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Bee Creek Park. College Station, Texas, March 20, 2026
 Indian blanket (Gaillardia pulchella) both in natural light and under 365 nm ultraviolet (UV-A) blacklight taken from Bee Creek Park. College Station, Texas, May 18, 2026
 Young leaves of elm both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, March 12, 2025
 Marble tombstone of Duntain (1853-1921) both in natural light and under 365 nm ultraviolet (UV-A) blacklight in City Cemetery. Bryan, Texas, October 24, 2024
 Close-up of a section of a grapefruit both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Farm Patch Produce Market in Bryan. Texas, October 9, 2024
 Rotting fruits of osage orange (hedge apple, Maclura pomifera) with yeast fungus Cyberlindnera maclurae on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, October 26, 2019
 Flowers of thistle (Cirsium) both in natural light and under 365 nm ultraviolet (UV-A) blacklight, collected in Lick Creek Park. College Station, Texas, May 8, 2026
 Grass on a sandy path both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, January 12, 2025
 Section of scallop squash (Patty Pan) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Farm Patch Produce Market in Bryan. Texas, October 9, 2024
 Rotting horse apple (osage orange) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 20, 2012
 Sandburs spikelets (Cenchrus spinifex) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Wolf Pen Creek Park. College Station, Texas, June 12, 2026
 Polypore mushroom Ganoderma sessile on a lawn both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Bee Creek Park. College Station, Texas, November 21, 2025
 Straggler Daisy (Calyptocarpus vialis) both in natural light and under 365 nm ultraviolet (UV-A) blacklight on a lawn in Bee Creek Park. College Station, Texas, November 21, 2025
 Fruit of purple passionflower (Passiflora incarnata) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, May 20, 2026
 Queen Anne s lace (Daucus carota) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Wolf Pen Creek Park. College Station, Texas, May 22, 2026
 Clasping henbit (Lamium amplexicaule) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Wolf Pen Creek Park. College Station, Texas, March 6, 2025
 Lemon beebalm (Monarda citriodora) both in natural light and under 365 nm ultraviolet (UV-A) blacklight, collected in Lick Creek Park. College Station, Texas, May 8, 2026
 Leaves of Smilax on a walking path both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Wolf Pen Creek Park. College Station, Texas, January 30, 2025
 Shoots of coralberry (Symphoricarpos orbiculatus) both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, March 12, 2025
 Buffalo gourd both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Nails Creek Unit of Somerville Lake State Park. Texas, September 22, 2024
 Texture of a fallen horse apple (maclura fruit) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, October 15, 2022
 Center of Maximilian sunflower (Helianthus maximiliani) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, September 18, 2024
 Blooming Maximilian sunflower (Helianthus maximiliani) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, September 18, 2024
 Flowers of Maximilian sunflower (Helianthus maximiliani) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, September 18, 2024
 Close-up of polypore mushroom Ganoderma sessile on a lawn both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Bee Creek Park. College Station, Texas, November 21, 2025
 Details of polypore mushroom Ganoderma sessile on a lawn both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Bee Creek Park. College Station, Texas, November 21, 2025
 Polypore mushrooms Ganoderma sessile on a stump both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, November 29, 2025
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