![](../../pictures/archives/compress/2024/3611/jpeg/12t.jpg) Southern strap lichen (Ramalina stenospora) on a twig of elm when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/03t.jpg) Cartilage lichen (Ramalina celastri) on a twig when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/08t.jpg) Powdered ruffle lichen (Parmotrema hypotropum) and Ramalina when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/09t.jpg) Powdered ruffle lichen (Parmotrema hypotropum) and cartilage lichen (Ramalina celastri) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/11t.jpg) Various fruticose lichens on a twig of elm when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/07t.jpg) Fragrant flatsedge (Cyperus odoratus)(?) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/01t.jpg) Flowers of smartweed (Persicaria, Polygonum) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/02t.jpg) White prickly poppy (Argemone albiflora) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/04t.jpg) Underside of hairy bracket mushroom (Trametes hirsuta) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/10t.jpg) Slender orange-bush (Teloschistes exilis) and other fruticose lichens on a twig of elm when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
![](../../pictures/archives/compress/2024/3613/jpeg/06t.jpg) Ramalina lichen on a twig when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 1, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/02t.jpg) Foliose lichens Ramalina celastri and Teloschistes exilis on a twig of elm when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/03t.jpg) Crustose lichens and Ramalina on an iron bridge when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/05t.jpg) Slender orange-bush lichen (Teloschistes exilis) on a twig of elm when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3613/jpeg/09t.jpg) Golden-eye lichen (Teloschistes chrysophthalmus) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 1, 2024
![](../../pictures/archives/compress/2024/3613/jpeg/03t.jpg) Southern prairie aster (Eurybia hemispherica) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 1, 2024
![](../../pictures/archives/compress/2024/3624/jpeg/25t.jpg) Peppered rock-shield lichen (Xanthoparmelia conspersa) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight on a stone from Nails Creek Unit of Somerville Lake State Park. Texas, September 22, 2024
![](../../pictures/archives/compress/2024/3613/jpeg/05t.jpg) Slender orange-bush lichen (Teloschistes exilis) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 1, 2024
![](../../pictures/archives/compress/2024/3635/jpeg/16t.jpg) Firedot lichen Caloplaca on a tomb of W. S. Minkert when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in City Cemetery. Bryan, Texas, October 24, 2024
![](../../pictures/archives/compress/2024/3635/jpeg/03t.jpg) Tombstone of Herne(?) with firedot lichen Caloplaca when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in City Cemetery. Bryan, Texas, October 24, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/04t.jpg) Buttonbush (Cephalanthus occidentalis) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/09t.jpg) Sandburs (Cenchrus spinifex) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/15t.jpg) Flowers of Passiflora foetida when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/12t.jpg) Snake cotton (Froelichia) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3635/jpeg/17t.jpg) Firedot lichen Caloplaca on a granite tombstone of Herne when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in City Cemetery. Bryan, Texas, October 24, 2024
![](../../pictures/archives/compress/2019/2610/jpeg/23t.jpg) Slender orange bush lichen (Teloschistes exilis) and striped ramalina lichen (Ramalina montagnei) on a small elm tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
![](../../pictures/archives/compress/2024/3610/jpeg/10t.jpg) Passion flower (Passiflora foetida) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/08t.jpg) Flowers of bladderpod (Sesbania vesicaria) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/07t.jpg) Flowers of slender vervain (verbena) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/11t.jpg) Slice of English cucumber from a supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 25, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/18t.jpg) Kroger Large Grade A Eggs when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 25, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/08t.jpg) Slice of an orange from Kroger supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/09t.jpg) Section of an orange from Kroger supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/14t.jpg) Green leaf of lettuce from a supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 25, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/11t.jpg) Slice of a tangerine from Kroger supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/13t.jpg) Section of a tangerine from Kroger supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2024/3641/jpeg/33t.jpg) Beard lichen (Usnea) fallen from a tree when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, November 12, 2024
![](../../pictures/archives/compress/2024/3640/jpeg/27t.jpg) Crustose lichen with bright orange fluorescence on a granite 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/2019/2610/jpeg/15t.jpg) Striped ramalina lichen (Ramalina montagnei) on a small elm tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
![](../../pictures/archives/compress/2024/3610/jpeg/20t.jpg) Spherical flowers of buttonbush (Cephalanthus occidentalis) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/21t.jpg) Flower buds of buttonbush (Cephalanthus occidentalis) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/06t.jpg) Slender vervain (verbena) with a crab spider when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/13t.jpg) Top view of passion flower (Passiflora foetida) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/03t.jpg) Fruits of balloon vine (Cardiospermum halicacabum) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/11t.jpg) Spherical inflorescence of buttonbush (Cephalanthus occidentalis) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/17t.jpg) Close-up of a twig of elm tree with folious lichens when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3623/jpeg/18t.jpg) Southern prairie aster (Eurybia hemispherica)(?) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Richards Loop Trail in Sam Houston National Forest. Texas, September 21, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/17t.jpg) Oscar Mayer Chopped Ham from Walmart supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 25, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/15t.jpg) Close-up of green leaf of lettuce from a supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 25, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/21t.jpg) Powderpuff (Mimosa strigillosa) 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, August 26, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/12t.jpg) Close-up of a slice of English cucumber from a supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 25, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/12t.jpg) Close-up of a slice of an tangerine from Kroger supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/14t.jpg) Slice of a section of a tangerine from Kroger supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/10t.jpg) Close-up of a slice of an orange from Kroger supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2019/2433/jpeg/31t.jpg) Octopus-like palmetto lichen (Ramalina celastri) and other species of Ramalina on a fallen oak branch in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
![](../../pictures/archives/compress/2024/3610/jpeg/14t.jpg) Side view of passion flower (Passiflora foetida) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/04t.jpg) Beautyberry (callicarpa americana) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/26t.jpg) Slice of a fresh green kiwi fruit from a supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 26, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/24t.jpg) Slice of a fresh strawberry from a supermarket (Gem-Pack Berries, HEB) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 26, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/29t.jpg) Section of an apple from a supermarket (Cosmic Crisp, 3507, HEB) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 26, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/23t.jpg) Gomphrena serrata (Arrasa con todo) 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, August 26, 2024
![](../../pictures/archives/compress/2024/3605/jpeg/23t.jpg) Crustose lichens on bark of a live oak when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Thomas Park. College Station, Texas, August 21, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/21t.jpg) Partridge pea (Cassia fasciculata) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, August 30, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/27t.jpg) Section of a fresh green kiwi fruit from a supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 26, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/02t.jpg) Crustose lichens on an iron bridge when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/20t.jpg) Ivy leaf Morning glory (Ipomoea cordatotriloba) 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, August 26, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/28t.jpg) Close-up of a section of a fresh green kiwi fruit from a supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 26, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/05t.jpg) Fruits of beautyberry (callicarpa americana) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2024/3636/jpeg/03t.jpg) Pertusaria and other crustose lichen on bark of a small honey mesquite tree when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, October 25, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/19t.jpg) Twig of elm tree with folious lichens Teloschistes exilis and Parmotrema hypotropum when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3640/jpeg/01t.jpg) Sidewalk firedot lichen (Xanthocarpia feracissima, Caloplaca feracissima) on a tombstone 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/2024/3612/jpeg/23t.jpg) Southern prairie aster (Eurybia hemispherica) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight collected on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, August 31, 2024
![](../../pictures/archives/compress/2024/3636/jpeg/01t.jpg) Saucer lichen Ochrolechia pallescens on bark of a small honey mesquite tree when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, October 25, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/20t.jpg) Maryland meadow-beauty (Rhexia mariana) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, August 30, 2024
![](../../pictures/archives/compress/2024/3607/jpeg/24t.jpg) Zizotes milkweed (Asclepias oenotheroides) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Richards Loop Trail in Sam Houston National Forest. Texas, August 24, 2024
![](../../pictures/archives/compress/2024/3607/jpeg/23t.jpg) Flower of butterfly pea (Centrosema virginianum) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Richards Loop Trail in Sam Houston National Forest. Texas, August 24, 2024
![](../../pictures/archives/compress/2024/3605/jpeg/22t.jpg) Close-up of rough bark of a live oak with crustose lichens when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Thomas Park. College Station, Texas, August 21, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/07t.jpg) Close-up of fruits of beautyberry (callicarpa americana) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2024/3609/jpeg/06t.jpg) Fruits and leaves of beautyberry (callicarpa americana) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, August 27, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/22t.jpg) Shoot of Chinese Privet bush (Ligustrum sinense) 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, August 26, 2024
![](../../pictures/archives/compress/2024/3606/jpeg/26t.jpg) Skin of a molted cicada on a grass blade when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, August 23, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/19t.jpg) Drummond s beeblossom (Oenothera xenogaura, Gaura drummondii) 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, August 26, 2024
![](../../pictures/archives/compress/2024/3606/jpeg/25t.jpg) Exoskeleton of a molted cicada on a grass blade when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, August 23, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/18t.jpg) Close-up of a twig of elm tree with folious lichens Teloschistes exilis and Parmotrema hypotropum when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3624/jpeg/21t.jpg) Wild buckwheat (Eriogonum) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Nails Creek Unit of Somerville Lake State Park. Texas, September 22, 2024
![](../../pictures/archives/compress/2024/3620/jpeg/21t.jpg) Small feather of a bird when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Birch Creek Unit of Somerville Lake State Park. Texas, September 14, 2024
![](../../pictures/archives/compress/2024/3624/jpeg/27t.jpg) Slice of buffalo gourd when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Nails Creek Unit of Somerville Lake State Park. Texas, September 22, 2024
![](../../pictures/archives/compress/2024/3624/jpeg/24t.jpg) Fruticose lichens on a twig when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Nails Creek Unit of Somerville Lake State Park. Texas, September 22, 2024
![](../../pictures/archives/compress/2024/3607/jpeg/25t.jpg) Blooming Zizotes milkweed (Asclepias oenotheroides) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Richards Loop Trail in Sam Houston National Forest. Texas, August 24, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/13t.jpg) Leaf of lettuce from a supermarket (Mann s Family Favorites, Romaine Hearts, Walmart) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 25, 2024
![](../../pictures/archives/compress/2024/3607/jpeg/21t.jpg) Narrow-leaf gayfeather (Liatris mucronata(?)) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Richards Loop Trail in Sam Houston National Forest. Texas, August 24, 2024
![](../../pictures/archives/compress/2024/3607/jpeg/22t.jpg) Flower of Pigeon wings (Clitoria mariana) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Richards Loop Trail in Sam Houston National Forest. Texas, August 24, 2024
![](../../pictures/archives/compress/2024/3611/jpeg/18t.jpg) Oysterling mushrooms Moniliophthora conchata from a trumpet vine when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, August 30, 2024
![](../../pictures/archives/compress/2024/3610/jpeg/16t.jpg) Twig of elm tree with folious lichens Teloschistes exilis, Parmotrema hypotropum, Usnea strigosa when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
![](../../pictures/archives/compress/2024/3620/jpeg/13t.jpg) Burs of cocklebur (Xanthium strumarium) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Birch Creek Unit of Somerville Lake State Park. Texas, September 14, 2024
![](../../pictures/archives/compress/2024/3624/jpeg/17t.jpg) Yellow Indiangrass (Sorghastrum nutans) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Nails Creek Unit of Somerville Lake State Park. Texas, September 22, 2024
![](../../pictures/archives/compress/2024/3620/jpeg/22t.jpg) Creeping cucumber (Melothria pendula) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Birch Creek Unit of Somerville Lake State Park. Texas, September 14, 2024
![](../../pictures/archives/compress/2024/3613/jpeg/07t.jpg) Fruticose lichens on an elm twig when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 1, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/25t.jpg) Close-up of a slice of a fresh green kiwi fruit from a supermarket (Stellar, Chile, 4030, HEB) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 26, 2024
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