![](../../pictures/archives/compress/2024/3479/jpeg/16t.jpg) Two pebbles of a mineral Yooperlite (syenite rock rich with fluorescent sodalite) glowing under ultraviolet light. College Station, Texas, February 29, 2024
![](../../pictures/archives/compress/2024/3639/jpeg/03t.jpg) Blue and orange fluorescent lichens on bark of hackberry in ultraviolet light in Lemontree Park. College Station, Texas, November 5, 2024
![](../../pictures/archives/compress/2024/3618/jpeg/01t.jpg) Some sedge(?) glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, September 11, 2024
![](../../pictures/archives/compress/2024/3639/jpeg/04t.jpg) Close-up of blue and orange fluorescent lichens on bark of hackberry in ultraviolet light in Lemontree Park. College Station, Texas, November 5, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/15t.jpg) Young toad glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, August 30, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/14t.jpg) Creeping grass glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, August 30, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/13t.jpg) Shoot of grass glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, August 30, 2024
![](../../pictures/archives/compress/2024/3614/jpeg/21t.jpg) Cap of a mushroom Amanita pubescens glowing in ultraviolet light in Lick Creek Park. College Station, Texas, September 5, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/17t.jpg) Apothecia of a foliose lichen glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, August 30, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/16t.jpg) A toad on a sandy path glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, August 30, 2024
![](../../pictures/archives/compress/2024/3614/jpeg/20t.jpg) Mushrooms Amanita pubescens on a sandy path glowing in ultraviolet light in Lick Creek Park. College Station, Texas, September 5, 2024
![](../../pictures/archives/compress/2024/3629/jpeg/11t.jpg) Glowing caps of ringless honey mushrooms (Desarmillaria caespitosa) in ultraviolet light in Lick Creek Park. College Station, Texas, October 8, 2024
![](../../pictures/archives/compress/2024/3628/jpeg/26t.jpg) Glowing gills of ringless honey mushrooms (Desarmillaria caespitosa) in ultraviolet light in Lick Creek Park. College Station, Texas, October 7, 2024
![](../../pictures/archives/compress/2024/3629/jpeg/07t.jpg) Glowing gills of ringless honey mushrooms (Desarmillaria caespitosa) in ultraviolet light in Lick Creek Park. College Station, Texas, October 8, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/19t.jpg) Gills of oysterling mushrooms Moniliophthora conchata from a trumpet vine glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, August 30, 2024
![](../../pictures/archives/compress/2024/3614/jpeg/16t.jpg) Lichens glowing blue and yellow on a trunk of honey mesquite under ultraviolet light on Post Oak Trail in Lick Creek Park. College Station, Texas, September 5, 2024
![](../../pictures/archives/compress/2024/3614/jpeg/17t.jpg) Close-up of lichens glowing blue and yellow on a trunk of honey mesquite under ultraviolet light on Post Oak Trail in Lick Creek Park. College Station, Texas, September 5, 2024
![](../../pictures/archives/compress/2024/3635/jpeg/01t.jpg) Fluorescent crustose lichens on a flat tombstone in ultraviolet light in City Cemetery. Bryan, Texas, October 24, 2024
![](../../pictures/archives/compress/2024/3635/jpeg/02t.jpg) Fluorescent lichens growing on a flat tombstone in ultraviolet light in City Cemetery. Bryan, Texas, October 24, 2024
![](../../pictures/archives/compress/2024/3635/jpeg/05t.jpg) Granite tomb with fluorescent crustose lichens in ultraviolet light in City Cemetery. Bryan, Texas, October 24, 2024
![](../../pictures/archives/compress/2024/3628/jpeg/11t.jpg) Rock rose (Pavonia) in ultraviolet light behind Nature Center in Lick Creek Park. College Station, Texas, October 6, 2024
![](../../pictures/archives/compress/2024/3622/jpeg/02t.jpg) Lichens on a large sandstone rock in ultraviolet light in Leach Teaching Gardens at Texas A and M University. College Station, Texas, September 16, 2024
![](../../pictures/archives/compress/1997/21/jpeg/05t.jpg) - a trip to Mineral Wells with SMU rock climbing club 2/13/97 (Mineral Wells, Dallas, Texas Hill Country, February 23 - March 14, 1997)
![](../../pictures/archives/compress/1997/21/jpeg/04t.jpg) - a trip to Mineral Wells with SMU rock climbing club 2/13/97 (Mineral Wells, Dallas, Texas Hill Country, February 23 - March 14, 1997)
![](../../pictures/archives/compress/1997/21/jpeg/09t.jpg) - a trip to Mineral Wells with SMU rock climbing club 2/13/97 (Mineral Wells, Dallas, Texas Hill Country, February 23 - March 14, 1997)
![](../../pictures/archives/compress/1997/21/jpeg/07t.jpg) - a trip to Mineral Wells with SMU rock climbing club 2/13/97 (Mineral Wells, Dallas, Texas Hill Country, February 23 - March 14, 1997)
![](../../pictures/archives/compress/1997/21/jpeg/02t.jpg) - a trip to Mineral Wells with SMU rock climbing club 2/13/97 (Mineral Wells, Dallas, Texas Hill Country, February 23 - March 14, 1997)
![](../../pictures/archives/compress/1997/21/jpeg/10t.jpg) - a trip to Mineral Wells with SMU rock climbing club 2/13/97 (Mineral Wells, Dallas, Texas Hill Country, February 23 - March 14, 1997)
![](../../pictures/archives/compress/1997/21/jpeg/11t.jpg) - a trip to Mineral Wells with SMU rock climbing club 2/13/97 (Mineral Wells, Dallas, Texas Hill Country, February 23 - March 14, 1997)
![](../../pictures/archives/compress/1997/21/jpeg/00t.jpg) - a trip to Mineral Wells with SMU rock climbing club 2/13/97 - downtown Fort Worth (Mineral Wells, Dallas, Texas Hill Country, February 23 - March 14, 1997)
![](../../pictures/archives/compress/2024/3630/jpeg/14t.jpg) Glowing gills of silky rosegill mushroom (Volvariella bombycina) in ultraviolet light on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, October 10, 2024
![](../../pictures/archives/compress/2024/3628/jpeg/27t.jpg) Plant with red fluorescence in ultraviolet light in Lick Creek Park. College Station, Texas, October 7, 2024
![](../../pictures/archives/compress/2024/3614/jpeg/18t.jpg) Mushrooms Amanita pubescens in ultraviolet light in Lick Creek Park. College Station, Texas, September 5, 2024
![](../../pictures/archives/compress/2024/3637/jpeg/10t.jpg) Fallen horse apple (Maclura) in ultraviolet light in Bee Creek Park. College Station, Texas, October 29, 2024
![](../../pictures/archives/compress/2024/3627/jpeg/13t.jpg) 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
![](../../pictures/archives/compress/2024/3639/jpeg/05t.jpg) Crustose lichens on bark of hackberry in ultraviolet light in Lemontree Park. College Station, Texas, November 5, 2024
![](../../pictures/archives/compress/2024/3627/jpeg/10t.jpg) 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
![](../../pictures/archives/compress/2024/3629/jpeg/19t.jpg) Green cabbage head both in natural light and under 365 nm ultraviolet (UV-A) blacklight from HEB supermarket. College Station, Texas, October 8, 2024
![](../../pictures/archives/compress/2024/3629/jpeg/20t.jpg) 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
![](../../pictures/archives/compress/2024/3606/jpeg/03t.jpg) Crustose lichens in ultraviolet light on bark of a hackberry in Lemontree Park. College Station, Texas, August 22, 2024
![](../../pictures/archives/compress/2024/3632/jpeg/01t.jpg) Purple bindweed (Ipomoea cordatotriloba) in ultraviolet light in Bee Creek Park. College Station, Texas, October 14, 2024
![](../../pictures/archives/compress/2024/3605/jpeg/18t.jpg) Various crustose lichen on a trunk of oak tree in ultraviolet light in Bee Creek Park. College Station, Texas, August 19, 2024
![](../../pictures/archives/compress/2024/3640/jpeg/15t.jpg) Fluorescent lichens on a cast iron fence of a tomb when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
![](../../pictures/archives/compress/2024/3464/jpeg/11t.jpg) Red brittlegill (Russula) mushroom in near ultraviolet light, collected in Lick Creek Park. College Station, Texas, January 29, 2024
![](../../pictures/archives/compress/2024/3625/jpeg/05t.jpg) Sandy path with elm leaves and algae in ultraviolet light in Lick Creek Park. College Station, Texas, September 25, 2024
![](../../pictures/archives/compress/2024/3619/jpeg/06t.jpg) 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
![](../../pictures/archives/compress/2024/3639/jpeg/22t.jpg) Dry leaves and sandstone with algae on a path in ultraviolet light in Lick Creek Park. College Station, Texas, November 8, 2024
![](../../pictures/archives/compress/2024/3619/jpeg/07t.jpg) 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
![](../../pictures/archives/compress/2024/3641/jpeg/21t.jpg) Fluorescence of water fern (Azolla) and duckweed in ultraviolet light in Bee Creek Park. College Station, Texas, November 11, 2024
![](../../pictures/archives/compress/2024/3627/jpeg/12t.jpg) 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
![](../../pictures/archives/compress/2024/3639/jpeg/29t.jpg) Sandstone with green algae on a path in ultraviolet light in Lick Creek Park. College Station, Texas, November 8, 2024
![](../../pictures/archives/compress/2024/3614/jpeg/22t.jpg) Top view of mushrooms Leucocoprinus longistriatus in ultraviolet light in Lick Creek Park. College Station, Texas, September 5, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/01t.jpg) Crustose lichens on an iron bridge in ultraviolet light in Lick Creek Park. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2024/3614/jpeg/23t.jpg) Caps of mushrooms Leucocoprinus longistriatus in ultraviolet light in Lick Creek Park. College Station, Texas, September 5, 2024
![](../../pictures/archives/compress/2024/3630/jpeg/03t.jpg) 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
![](../../pictures/archives/compress/2024/3605/jpeg/21t.jpg) Rough bark of a live oak with crustose lichens in ultraviolet light in Thomas Park. College Station, Texas, August 21, 2024
![](../../pictures/archives/compress/2024/3632/jpeg/07t.jpg) Golden reishi mushroom (Ganoderma curtisii) in ultraviolet light in Lick Creek Park. College Station, Texas, October 16, 2024
![](../../pictures/archives/compress/2024/3634/jpeg/04t.jpg) 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
![](../../pictures/archives/compress/2024/3632/jpeg/05t.jpg) 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
![](../../pictures/archives/compress/2024/3632/jpeg/18t.jpg) 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
![](../../pictures/archives/compress/2024/3632/jpeg/14t.jpg) 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
![](../../pictures/archives/compress/2024/3614/jpeg/19t.jpg) Mushrooms Amanita pubescens on a sandy path in ultraviolet light in Lick Creek Park. College Station, Texas, September 5, 2024
![](../../pictures/archives/compress/2024/3639/jpeg/30t.jpg) Dry oak and hackberry leaves and sandstone with algae on a path in ultraviolet light in Lick Creek Park. College Station, Texas, November 8, 2024
![](../../pictures/archives/compress/2024/3625/jpeg/02t.jpg) 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
![](../../pictures/archives/compress/2024/3628/jpeg/24t.jpg) Ringless honey mushrooms (Desarmillaria caespitosa) in ultraviolet light in Lick Creek Park. College Station, Texas, October 7, 2024
![](../../pictures/archives/compress/2024/3628/jpeg/12t.jpg) Wooden fence of a small foot bridge in ultraviolet light in Lick Creek Park. College Station, Texas, October 6, 2024
![](../../pictures/archives/compress/2024/3464/jpeg/12t.jpg) Gills of red brittlegill (Russula) mushroom in near ultraviolet light, collected in Lick Creek Park. College Station, Texas, January 29, 2024
![](../../pictures/archives/compress/2024/3617/jpeg/11t.jpg) Spider lily (Hymenocallis) near Nature Center under ultraviolet light in Lick Creek Park. College Station, Texas, September 9, 2024
![](../../pictures/archives/compress/2024/3614/jpeg/24t.jpg) Mushrooms Leucocoprinus longistriatus on a sandy path in ultraviolet light in Lick Creek Park. College Station, Texas, September 5, 2024
![](../../pictures/archives/compress/2024/3631/jpeg/26t.jpg) 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
![](../../pictures/archives/compress/2024/3618/jpeg/17t.jpg) 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
![](../../pictures/archives/compress/2024/3637/jpeg/09t.jpg) Tree trunk with white crust fungus Dendrothele candida(?) in ultraviolet light in Bee Creek Park. College Station, Texas, October 29, 2024
![](../../pictures/archives/compress/2024/3634/jpeg/05t.jpg) Golden reishi mushroom (Ganoderma curtisii) near a stump in ultraviolet light in Lick Creek Park. College Station, Texas, October 23, 2024
![](../../pictures/archives/compress/2024/3641/jpeg/16t.jpg) 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
![](../../pictures/archives/compress/2024/3641/jpeg/20t.jpg) 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
![](../../pictures/archives/compress/2024/3629/jpeg/15t.jpg) Old cluster of ringless honey mushrooms (Desarmillaria caespitosa) in ultraviolet light in Lick Creek Park. College Station, Texas, October 8, 2024
![](../../pictures/archives/compress/2024/3605/jpeg/19t.jpg) Sidewalk firedot lichen (Xanthocarpia feracissima) in ultraviolet light on a concrete path in Bee Creek Park. College Station, Texas, August 19, 2024
![](../../pictures/archives/compress/2024/3639/jpeg/25t.jpg) Dry oak leaves, fallen twigs and sandstone with algae on a path in ultraviolet light in Lick Creek Park. College Station, Texas, November 8, 2024
![](../../pictures/archives/compress/2024/3618/jpeg/02t.jpg) 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
![](../../pictures/archives/compress/2024/3629/jpeg/05t.jpg) Close-up of ringless honey mushrooms (Desarmillaria caespitosa) in ultraviolet light in Lick Creek Park. College Station, Texas, October 8, 2024
![](../../pictures/archives/compress/2024/3632/jpeg/02t.jpg) Sidewalk firedot lichen (Xanthocarpia feracissima) on a concrete path in ultraviolet light in Bee Creek Park. College Station, Texas, October 15, 2024
![](../../pictures/archives/compress/2024/3494/jpeg/14t.jpg) Fluorescent light sculpture "Untitled (In Honor of Leo at the 30th Anniversary of his Gallery)" (1987) by Dan Flavin in San Francisco Museum of Modern Art. San Francisco, California, March 18, 2024
![](../../pictures/archives/compress/2024/3606/jpeg/21t.jpg) Crustose lichens in ultraviolet light on a small mesquite tree on Post Oak Trail in Lick Creek Park. College Station, Texas, August 23, 2024
![](../../pictures/archives/compress/2024/3631/jpeg/01t.jpg) Wood of a bench with crustose lichens in ultraviolet light in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, October 11, 2024
![](../../pictures/archives/compress/2024/3605/jpeg/20t.jpg) Prostrate polypore mushroom Perenniporia phloiophila on a live oak (Quercus virginiana) in ultraviolet light in Thomas Park. College Station, Texas, August 21, 2024
![](../../pictures/archives/compress/2024/3631/jpeg/02t.jpg) Crustose lichens on a wooden bench in ultraviolet light in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, October 11, 2024
![](../../pictures/archives/compress/2024/3618/jpeg/06t.jpg) 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
![](../../pictures/archives/compress/2024/3641/jpeg/29t.jpg) 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
![](../../pictures/archives/compress/2024/3627/jpeg/23t.jpg) Fallen horse apple (osage orange, Maclura) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Bee Creek Park. College Station, Texas, October 4, 2024
![](../../pictures/archives/compress/2024/3641/jpeg/27t.jpg) 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
![](../../pictures/archives/compress/2024/3606/jpeg/01t.jpg) Sidewalk firedot (Xanthocarpia feracissima) with other crustose lichens in ultraviolet light on a concrete path in Lemontree Park. College Station, Texas, August 22, 2024
![](../../pictures/archives/compress/2024/3641/jpeg/18t.jpg) 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
![](../../pictures/archives/compress/2024/3628/jpeg/25t.jpg) Side view of ringless honey mushrooms (Desarmillaria caespitosa) in ultraviolet light in Lick Creek Park. College Station, Texas, October 7, 2024
![](../../pictures/archives/compress/2024/3631/jpeg/10t.jpg) Purple bindweed (Ipomoea cordatotriloba) in ultraviolet light in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, October 11, 2024
![](../../pictures/archives/compress/2024/3629/jpeg/14t.jpg) Gills of a cluster of ringless honey mushrooms (Desarmillaria caespitosa) in ultraviolet light in Lick Creek Park. College Station, Texas, October 8, 2024
![](../../pictures/archives/compress/2024/3622/jpeg/11t.jpg) 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
![](../../pictures/archives/compress/2024/3642/jpeg/18t.jpg) Leaves of bull thistle (Cirsium horridulum) in ultraviolet light on a sewage line right of way in Lick Creek Park. College Station, Texas, November 15, 2024
![](../../pictures/archives/compress/2024/3618/jpeg/09t.jpg) 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
![](../../pictures/archives/compress/2024/3629/jpeg/10t.jpg) Details of caps of ringless honey mushrooms (Desarmillaria caespitosa) in ultraviolet light in Lick Creek Park. College Station, Texas, October 8, 2024
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