Similar pictures

Back lit oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020

Close-up of oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020

Oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, June 17, 2018

Close up of oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, June 17, 2018

Black blotches on the leaf of persimmon (Diospyros virginiana) caused by Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020

Necrotic spots that develop into angular lesions on underside of a leaf of persimmon (Diospyros virginiana) caused by persimmon Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020

Black blotches on the leaf of persimmon (Diospyros virginiana) caused by Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 18, 2022

Leaf of persimmon (Diospyros virginiana) prematurely turned yellow with black spots of fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020

Orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on a leaf of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020

Texture of a leaf of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020

Orange leaf of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020

Speckled leaf of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020

Venation of a sassafras leaf on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020

Close-up of a leaf of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020

Woolly growth (gall) on a dry oak leaf on Richards Loop Trail in Sam Houston National Forest. Texas, November 5, 2020

Narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020

Flowers of narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020

Large catalpa-like leaf with pronounced veins on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 20, 2020

Young lobed leaf of mustang grape (Vitis mustangensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020

Hickory leaf with dense cover of Phylloxera galls on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, May 2, 2020

Young red lobed leaf of mustang grape (Vitis mustangensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020

Close-up of a greenbrier leaf with rust fungus Puccinia smilacis, collected on Richards Loop Trail in Sam Houston National Forest. Texas, March 9, 2022

Yellow leaf of passion flower (Passiflora lutea) on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 20, 2020

Fungus Botryosphaeria dothidea (in Congo Red solution) collected from leaf tar spots on goldenrod on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 2022

Black blotches on underside of the leaf of persimmon (Diospyros virginiana) caused by Cercospora leaf spot fungus Pseudocercospora diospyricola in Bee Creek Park. College Station, Texas, August 31, 2023

Purple pleat-leaf (Pinewood lily, Alophia drummondii, Eustylis purpurea) on Little Lake Creek Loop Trail in Sam Houston National Forest, with 3 large rounded dark purple outer petal segments and 3 boat-like inner petals with a yellow spot at central pithed-in area. Richards, Texas, June 22, 2008

Gall fungus Botryosphaeria dothidea (in Congo Red solution) collected from leaf tar spots on goldenrod on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 2022

Texas leaf cutting ant (Atta texana) on a sand mound on Richards Loop Trail in Sam Houston National Forest. Texas, November 5, 2020

Texas leaf cutting ants (Atta texana) excavating sand on Richards Loop Trail in Sam Houston National Forest. Texas, November 5, 2020

Texas leaf cutting ants (Atta texana) carrying sand bits on Richards Loop Trail in Sam Houston National Forest. Texas, November 5, 2020

Caterpillar munching leaf of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021

Skeletonized leaf in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012

Leaf of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021

Young leaf of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021

Reddish leaf of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, April 9, 2022

Young leaf of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, April 9, 2022

Red leaf of sassafras at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, August 19, 2012

Narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021

Green lynx spider on a leaf of greenbrier on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021

Narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021

Back lit Phylloxera galls on a hickory leaf on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024

Narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 23, 2023

Narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021

Leaf of an aquatic plant in ultraviolet light from Richards Loop Trail in Sam Houston National Forest. Texas, October 27, 2024

Flowers of narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021

Blooming narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021

Flowers of narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 23, 2023

Flowers of narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021

Uncurling leaf of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023

Fresh leaf of flameleaf sumac (Rhus lanceolata) on Richards Loop Trail in Sam Houston National Forest. Texas, June 9, 2022

Purple pleat-leaf (Pinewood lily, Alophia drummondii) on Richards Loop Trail in Sam Houston National Forest. Texas, June 9, 2022

Young leaf of bracken fern (Pteridium aquilinum) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024

Close-up of flowers of narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021

Green nymph of grasshopper on a dried leaf of bracken fern on Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022

Woolly growth (galls) on underside of a hickory(?) leaf on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, July 19, 2022

Pattern of a young leaf of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023

Shield-backed bug (Scutelleridae) on a leaf of yaupon holly in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008

Milky false truffle mushroom Zelleromyces cinnabarinus placed on an oak leaf with a gall on Richards Loop Trail in Sam Houston National Forest. Texas, December 28, 2021

Shrubby (narrow-leaf) water-primrose (Ludwigia octovalvis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 22, 2008

Young flowers of narrow-leaf gayfeather (Liatris mucronata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008

Opening flowers of narrow-leaf gayfeather (Liatris mucronata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008

Orange jelly spot fungus (Dacrymyces chrysospermus) on a fallen pine branch on Richards Loop Trail in Sam Houston National Forest. Texas, February 27, 2022

Purple pleat-leaf (Pinewood lily, Alophia drummondii, Eustylis purpurea) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012

Tiny white flowers of rustweed (juniper leaf, Polypremum procumbens) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008

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

Purple pleat-leaf (Pinewood lily, Alophia drummondii, Eustylis purpurea) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014

Purple pleat-leaf (Pinewood lily, Alophia drummondii, Eustylis purpurea) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014

Flower of Purple pleat-leaf (Pinewood lily, Alophia drummondii, Eustylis purpurea) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014

Flower of purple pleat-leaf (Pinewood lily, Alophia drummondii, Eustylis purpurea) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014

Some fungus on underside of a magnolia leaf on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, September 22, 2018

Narrow-leaf gayfeather (Liatris mucronata), close up of flowers with imbricated phyllaries enclosing each cluster, on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008

White mycelium of a fungus on an elm leaf on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 5, 2023

Thin round fungus on underside of a magnolia leaf on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, September 22, 2018

Ascomycete fungus Hymenoscyphus epiphyllus(?) on a dry leaf on wet mud on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 11, 2021

Central area of a flower of Purple pleat-leaf (Pinewood lily, Alophia drummondii, Eustylis purpurea) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014

Leaf venation of May apple (Podophyllum peltatum) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 9, 2020

Young leaf of May apple (Podophyllum peltatum) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 9, 2020

Leaf of resurrection fern (Pleopeltis polypodioides) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 26, 2020

Leaf-like lobes of jelly fungus Phaeotremella frondosa on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, August 6, 2021

Cup fungus Hymenoscyphus epiphyllus(?) on a dry leaf together with Scutellinia superba on wet mud on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 11, 2021

Thin web-like fungus on underside of a fallen magnolia leaf on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, June 27, 2021

Side view of cup fungus Hymenoscyphus epiphyllus(?) on a dry leaf on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 11, 2021

Leaf-like lobes of jelly fungus Phaeotremella frondosa on wood on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, August 6, 2021

Mold fungus Cylindrium elongatum(?) on a rotting oak leaf under a log in wet area on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 19, 2023

Persimmon leaf blister galls caused by bead gall mite Aceria theospyri on leaves of persimmon (Diospyros virginiana) on Richards Loop Trail in Sam Houston National Forest. Texas, May 26, 2022

Leaf-like jelly fungus Phaeotremella frondosa on a fallen tree branch on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, August 6, 2021

Masses of small cups of fungus Hymenoscyphus epiphyllus(?) on a dry leaf in wet area on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 11, 2021

Orange jelly spot fungus (Dacrymyces chrysospermus) on a fallen pine branch on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 31, 2020

Aeciospores of rust fungus Puccinia podophylli from a May apple leaf under a microscope, collected from Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 10, 2022

Rod-shaped conidospores of mold fungus Cylindrium elongatum(?) from a rotting oak leaf, collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 19, 2023

Whitish conidiophores of mold fungus Cylindrium elongatum(?) on a rotting oak leaf under a log in wet area on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 19, 2023

Floral receptacles of lire-leaf sage on a trail in Sam Houston National Forest, near Road 149, near Richards. Texas, May 15, 2010

Orange jelly spot fungus (Dacrymyces chrysospermus) emerging from crack of pine bark on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 31, 2020

Cylindrical conidia (in lugol) of mold fungus Cylindrium elongatum(?) from a rotting oak leaf, collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 19, 2023

Underside of a leaf of jumpseed (knotweed, Persicaria virginiana) with brown spores of some rust fungus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 3, 2022

Cylindrical conidia (in Congo Red) of mold fungus Cylindrium elongatum(?) from a rotting oak leaf, collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 19, 2023

Aeciospores of rust fungus Puccinia podophylli from a May apple leaf under a microscope at higher magnification, collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 10, 2022

Yellow spots caused by some rust fungus on a leaf of jumpseed (knotweed, Persicaria virginiana) on floodplain on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 3, 2022

Cylindrical conidia (in lugol, low magnification) of mold fungus Cylindrium elongatum(?) from a rotting oak leaf, collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 19, 2023