![](../../pictures/archives/compress/2023/3367/jpeg/02t.jpg) Head of black swallowtail butterfly (Papilio polyxenes) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3367/jpeg/01t.jpg) Close-up of a tail section of black swallowtail butterfly (Papilio polyxenes) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2021/3000/jpeg/01t.jpg) Caterpillar of black swallowtail butterfly (Papilio polyxenes) on parsley in Butterfly Garden at Andy Anderson Arboretum in Bee Creek Park. College Station, Texas, August 5, 2021
![](../../pictures/archives/compress/2010/866/jpeg/17t.jpg) Black swallowtail butterfly (Papilio polyxenes) on Iron Bridge Trail in Lick Creek Park. College Station, Texas, June 4, 2010
![](../../pictures/archives/compress/2010/866/jpeg/12t.jpg) Black swallowtail butterfly (Papilio polyxenes) on Post Oak Trail at morning in Lick Creek Park. College Station, Texas, June 4, 2010
![](../../pictures/archives/compress/2021/3000/jpeg/02t.jpg) Caterpillar of black swallowtail butterfly (Papilio polyxenes) on a stalk of parsley in Butterfly Garden at Andy Anderson Arboretum in Bee Creek Park. College Station, Texas, August 5, 2021
![](../../pictures/archives/compress/2021/3000/jpeg/03t.jpg) Young caterpillar of black swallowtail butterfly (Papilio polyxenes) on a stalk of parsley in Butterfly Garden at Andy Anderson Arboretum in Bee Creek Park. College Station, Texas, August 5, 2021
![](../../pictures/archives/compress/2010/857/jpeg/08t.jpg) Inactive black swallowtail butterfly (Papilio polyxenes) in dew in Lick Creek Park. College Station, Texas, May 4, 2010
![](../../pictures/archives/compress/2010/857/jpeg/09t.jpg) Caterpillar of black swallowtail butterfly (Papilio polyxenes) in dew in Lick Creek Park. College Station, Texas, May 4, 2010
![](../../pictures/archives/compress/2010/866/jpeg/19t.jpg) Ventral surface of Black swallowtail butterfly (Papilio polyxenes) on Iron Bridge Trail in Lick Creek Park. College Station, Texas, June 4, 2010
![](../../pictures/archives/compress/2022/3134/jpeg/06t.jpg) Caterpillar of black swallowtail butterfly (Papilio polyxenes) in Lick Creek Park. College Station, Texas, April 18, 2022
![](../../pictures/archives/compress/2010/866/jpeg/18t.jpg) Tail area of wings of Black swallowtail butterfly (Papilio polyxenes) on Iron Bridge Trail in Lick Creek Park. College Station, Texas, June 4, 2010
![](../../pictures/archives/compress/2010/866/jpeg/20t.jpg) Black swallowtail butterfly (Papilio polyxenes) on woodoats (Chasmanthium latifolium) on Iron Bridge Trail in Lick Creek Park. College Station, Texas, June 4, 2010
![](../../pictures/archives/compress/2010/864/jpeg/22t.jpg) Caterpillar of black swallowtail butterfly (Papilio polyxenes) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 29, 2010
![](../../pictures/archives/compress/2010/863/jpeg/08t.jpg) Caterpillar of black swallowtail butterfly (Papilio polyxenes) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 23, 2010
![](../../pictures/archives/compress/2010/866/jpeg/01t.jpg) Tail part of black swallowtail butterfly (Papilio polyxenes) in Lake Bryan Park. Bryan, Texas, June 2, 2010
![](../../pictures/archives/compress/2010/866/jpeg/02t.jpg) Black swallowtail butterfly (Papilio polyxenes) at morning on a stalk of Slender bush clover in Lake Bryan Park. Bryan, Texas, June 2, 2010
![](../../pictures/archives/compress/2010/863/jpeg/09t.jpg) Disturbed caterpillar of black swallowtail butterfly (Papilio polyxenes) in defensive pose showing orange horns (osmeterium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 23, 2010
![](../../pictures/archives/compress/2010/863/jpeg/10t.jpg) Caterpillar of black swallowtail butterfly (Papilio polyxenes) in defensive pose retracting orange horns (osmeterium) and showing three pairs of front legs in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 23, 2010
![](../../pictures/archives/compress/2019/2522/jpeg/15t.jpg) Giant Swallowtail butterfly (Papilio cresphontes) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, June 7, 2019
![](../../pictures/archives/compress/2019/2522/jpeg/16t.jpg) Close up of giant Swallowtail butterfly (Papilio cresphontes) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, June 7, 2019
![](../../pictures/archives/compress/2019/2522/jpeg/14t.jpg) Giant Swallowtail butterfly (Papilio cresphontes) on yaupon holly on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, June 7, 2019
![](../../pictures/archives/compress/2010/856/jpeg/03t.jpg) Earlier instar (dark with a white saddle) of Black swallowtail caterpillar (Papilio polyxenes) on an island in Lake Bryan Park. Bryan, Texas, April 22, 2010
![](../../pictures/archives/compress/2009/711/jpeg/14t.jpg) Emerald Swallowtail (Papilio Palinurus) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
![](../../pictures/archives/compress/2009/711/jpeg/15t.jpg) Close-up of Emerald Swallowtail (Papilio Palinurus) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
![](../../pictures/archives/compress/2023/3357/jpeg/27t.jpg) Butterfly Amaryllis (Hippeastrum papilio) in Antique Rose Emporium. Independence, Texas, March 6, 2023
![](../../pictures/archives/compress/2023/3405/jpeg/09t.jpg) Tiny Mycena mushrooms on black background, from a slope of an ash pit from a burned tree, on Richards Loop Trail in Sam Houston National Forest. Texas, May 6, 2023
![](../../pictures/archives/compress/2023/3345/jpeg/14t.jpg) Close-up of black elfin saddle mushroom Helvella lacunosa on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, February 18, 2023
![](../../pictures/archives/compress/2023/3345/jpeg/15t.jpg) Stem of black elfin saddle mushroom Helvella lacunosa on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, February 18, 2023
![](../../pictures/archives/compress/2023/3345/jpeg/12t.jpg) Side view of black elfin saddle mushroom Helvella lacunosa on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, February 18, 2023
![](../../pictures/archives/compress/2023/3345/jpeg/17t.jpg) Side view of Ascomycete mushroom Helvella lacunosa on black background on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, February 18, 2023
![](../../pictures/archives/compress/2023/3345/jpeg/11t.jpg) Black elfin saddle mushroom Helvella lacunosa from side of Road FS 203 covered bt gravel near Richards Loop Trail in Sam Houston National Forest. Texas, February 18, 2023
![](../../pictures/archives/compress/2023/3344/jpeg/14t.jpg) Bright brown corticioid fungus growing over black Hypoxylon or Biscogniauxia crust on a fallen oak on Richards Loop Trail in Sam Houston National Forest. Texas, February 18, 2023
![](../../pictures/archives/compress/2023/3344/jpeg/15t.jpg) Close-up of brown corticioid fungus growing over black Hypoxylon or Biscogniauxia crust on a fallen oak on Richards Loop Trail in Sam Houston National Forest. Texas, February 18, 2023
![](../../pictures/archives/compress/2010/859/jpeg/02t.jpg) Black swallowtail butterfly in Lick Creek Park. College Station, Texas, May 13, 2010
![](../../pictures/archives/compress/2023/3327/jpeg/06t.jpg) Basidia of some fungal tissue grown together with black fungus Sphaeria (Rosellinia) collected on South Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, January 14, 2023
![](../../pictures/archives/compress/2023/3445/jpeg/02t.jpg) Tiny black buttons of Ascomycete fungus Trichoderma citrinoviride (Hypocrea schweinitzii) on a fallen pine without bark on Richards Loop Trail in Sam Houston National Forest. Texas, December 17, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/12t.jpg) Winged elm on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/13t.jpg) Shoot of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3446/jpeg/05t.jpg) Chains of some black spores of corticioid fungus Drepanospora viridis (Helicoma viride)(?) from underside of a fallen pine, collected on Richards Loop Trail in Sam Houston National Forest. Texas, December 17, 2023
![](../../pictures/archives/compress/2023/3445/jpeg/04t.jpg) Texture of tiny black buttons of Ascomycete fungus Trichoderma citrinoviride (Hypocrea schweinitzii) on a fallen pine without bark on Richards Loop Trail in Sam Houston National Forest. Texas, December 17, 2023
![](../../pictures/archives/compress/2023/3445/jpeg/05t.jpg) Tiny black buttons of Ascomycete fungus Trichoderma citrinoviride (Hypocrea schweinitzii) on a fallen pine without bark at sunrise on Richards Loop Trail in Sam Houston National Forest. Texas, December 17, 2023
![](../../pictures/archives/compress/2023/3445/jpeg/01t.jpg) Tiny black Ascomycete fungus Trichoderma citrinoviride (Hypocrea schweinitzii) on a fallen pine without bark with whitish wood on Richards Loop Trail in Sam Houston National Forest. Texas, December 17, 2023
![](../../pictures/archives/compress/2023/3445/jpeg/03t.jpg) Close-up of tiny black buttons of Ascomycete fungus Trichoderma citrinoviride (Hypocrea schweinitzii) on a fallen pine without bark on Richards Loop Trail in Sam Houston National Forest. Texas, December 17, 2023
![](../../pictures/archives/compress/2023/3327/jpeg/08t.jpg) Spores of a black ball of fungus Sphaeria subiculata (Rosellinia subiculata)(?) collected on South Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, January 14, 2023
![](../../pictures/archives/compress/2023/3327/jpeg/05t.jpg) Tissues at low magnification of black fungus Sphaeria subiculata (Rosellinia subiculata)(?) collected on South Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, January 14, 2023
![](../../pictures/archives/compress/2023/3445/jpeg/06t.jpg) Close-up of tiny black buttons of Ascomycete fungus Trichoderma citrinoviride (Hypocrea schweinitzii) on a fallen pine without bark at sunrise on Richards Loop Trail in Sam Houston National Forest. Texas, December 17, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/07t.jpg) Red young leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/19t.jpg) Flowers of hawthorn on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/04t.jpg) Leaves of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/14t.jpg) Rusty shoot of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3367/jpeg/19t.jpg) Red wrinkled leaves of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3367/jpeg/16t.jpg) Some rusty oak seedling on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3367/jpeg/03t.jpg) Forest Service Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3367/jpeg/04t.jpg) Pines near Forest Service Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2024/3482/jpeg/12t.jpg) Fieldcap (Agrocybe)(?) mushroom near a pine in relatively dry area, on sandy soil (spore print black) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
![](../../pictures/archives/compress/2021/3001/jpeg/23t.jpg) Butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
![](../../pictures/archives/compress/2021/2994/jpeg/01t.jpg) Butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
![](../../pictures/archives/compress/2020/2738/jpeg/01t.jpg) Butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2743/jpeg/31t.jpg) Butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2756/jpeg/25t.jpg) Butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
![](../../pictures/archives/compress/2023/3366/jpeg/17t.jpg) Fresh green leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/06t.jpg) Wrinkled young leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/15t.jpg) Spider on leaves of beautyberry on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/18t.jpg) Back lit leaves of sassafra on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/20t.jpg) Early blooming hawthorn on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3367/jpeg/12t.jpg) Young orange leaves of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3367/jpeg/14t.jpg) Back lit leaves of willow oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3367/jpeg/18t.jpg) Young wrinkled leaves of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/24t.jpg) Close-up of luna moth on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3367/jpeg/13t.jpg) Fiddlehead of bracken fern on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3367/jpeg/05t.jpg) Rock-rose on Forest Service Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3327/jpeg/07t.jpg) Tissues and spores at low magnification of a black ball of fungus Sphaeria subiculata (Rosellinia subiculata)(?) collected on South Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, January 14, 2023
![](../../pictures/archives/compress/2020/2738/jpeg/25t.jpg) Blooming butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/27t.jpg) Back lit butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2021/3001/jpeg/26t.jpg) Flower of butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
![](../../pictures/archives/compress/2012/1062/jpeg/09t.jpg) Butterfly pea (Centrosema virginianum) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
![](../../pictures/archives/compress/2021/2994/jpeg/02t.jpg) Blooming butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
![](../../pictures/archives/compress/2021/2994/jpeg/05t.jpg) Blooming butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
![](../../pictures/archives/compress/2020/2738/jpeg/02t.jpg) Close-up of butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2658/jpeg/08t.jpg) Cap of black-edged Pluteus mushroom (Pluteus atromarginatus) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
![](../../pictures/archives/compress/2023/3366/jpeg/10t.jpg) Rattan vine (Berchemia scandens) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/11t.jpg) Leaves of farkleberry (Vaccinium arboreum)(?) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/16t.jpg) Green milkweed (Asclepias viridis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/01t.jpg) Rock-rose (Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/25t.jpg) Carolina buckthorn (Frangula caroliniana) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/23t.jpg) Red young leaves of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2023/3366/jpeg/21t.jpg) Young leaves and flowers of hawthorn on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2020/2658/jpeg/07t.jpg) Gills of black-edged Pluteus mushroom (Pluteus atromarginatus) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
![](../../pictures/archives/compress/2021/2994/jpeg/21t.jpg) Back lit flower of butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
![](../../pictures/archives/compress/2019/2543/jpeg/21t.jpg) Butterfly pea (Centrosema virginianum) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 29, 2019
![](../../pictures/archives/compress/2014/1455/jpeg/14t.jpg) Butterfly pea (Centrosema virginianum) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
![](../../pictures/archives/compress/2013/1227/jpeg/10t.jpg) Butterfly pea (Centrosema virginianum) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 7, 2013
![](../../pictures/archives/compress/2014/1456/jpeg/09t.jpg) Butterfly pea (Centrosema virginianum) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
![](../../pictures/archives/compress/2019/2529/jpeg/26t.jpg) Butterfly pea (Centrosema virginianum) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
![](../../pictures/archives/compress/2021/3001/jpeg/22t.jpg) Butterfly pea (Centrosema virginianum) and bracken fern on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
![](../../pictures/archives/compress/2021/3002/jpeg/01t.jpg) Close-up of a flower of butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
![](../../pictures/archives/compress/2019/2528/jpeg/11t.jpg) Butterfly pea (Centrosema virginianum) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
![](../../pictures/archives/compress/2021/2994/jpeg/14t.jpg) Close-up of a flower of butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
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