Synonyms: Hypocrea rufa, Pyreniopsis vulgaris, Pyrenium lignorum, Sphaeria rufa, Trichoderma lignorum.
Extract from Wikipedia article: Trichoderma viride is a fungus and a biofungicide.
Estonian: Puna-helekottseen, Russian: Триходерма зелёная, Swedish: Röddyna.
Trichoderma viride is a species of fungus in the family Hypocreaceae, order Hypocreales, class Sordariomycetes, and phylum Ascomycota. It is a common soil-borne fungus found in various habitats, including forests, grasslands, and agricultural fields. In East and Central Texas, Trichoderma viride has been isolated from soils, decaying organic matter, and plant roots, particularly in areas with rich soil and high humidity. The fungus is known to be a opportunistic parasite and a saprotroph, capable of degrading cellulose and other complex organic compounds. It has also been found to form mycorrhizal associations with certain plant species, promoting plant growth and health. Trichoderma viride produces greenish-blue conidia and has a wide temperature tolerance, allowing it to thrive in the subtropical climate of East and Central Texas.
Trichoderma viride mushrooms in Hensel Park. College Station, Texas, December 31, 2017
Hensel Park DriveWay, College Station, TX 77840, USA
Green crust fungus Trichoderma viride on a fallen branch in Hensel Park. College Station, Texas, December 31, 2017Hensel Park DriveWay, College Station, TX 77840, USA
Small mushrooms Trichoderma gelatinosum group and Trichoderma viride on a fallen tree branch in Lick Creek Park. College Station, Texas, October 3, 2018Raccoon Run, College Station, TX 77845, USA
Fungus Trichoderma viride on a log on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, October 15, 2019Yaupon Loop, College Station, TX 77845, USA
Green crust fungus Trichoderma viride on a log on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, October 15, 2019Yaupon Loop, College Station, TX 77845, USA
Close up of green crust fungus Trichoderma viride under a fallen oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 21, 2019Lake Somerville Trailway, Somerville, TX 77879, USA
Patch of green crust fungus Trichoderma viride under a fallen oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 21, 2019Lake Somerville Trailway, Somerville, TX 77879, USA
Green crust fungus Trichoderma viride under a fallen oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 21, 2019Lake Somerville Trailway, Somerville, TX 77879, USA
Couscous crust fungus Bulbillomyces farinosus together with green crust fungus Trichoderma viride on a wet oak log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 25, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Green fungus Trichoderma viride on a thin dry standing tree, may be Yaupon holly, on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, April 7, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USA
Pattern of fungus Trichoderma viride on a thin dry tree on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, April 7, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USA
Close-up of fungus Trichoderma viride on a thin dry tree on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, April 7, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USA
Green patch of fungus Trichoderma viride on a thin dry tree on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, April 7, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USA
Texture of fungus Trichoderma viride on a thin dry tree on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, April 7, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USA
Green fungus Trichoderma viride on a cut surface of a tree stump on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, April 7, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USA
Close-up of fungus Trichoderma viride on a cut surface of a tree stump on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, April 7, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USA
Green corticioid fungus Trichoderma viride on cut surface on the top of a log (may be oak) on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, August 22, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USA
Whitish and green patches of corticioid fungus Trichoderma viride on cut surface on the top of a log on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, August 22, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USA
Fungus Trichoderma viride(?) on a partialy burned oak(?) log on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, April 17, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Close-up of fungus Trichoderma viride(?) on a partialy burned oak(?) log on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, April 17, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Fungus Trichoderma viride from southern clam shell mushroom (Fomes) under a microscope, collected in Lick Creek Park. College Station, Texas, April 29, 2022
Spores of fungus Trichoderma viride from southern clam shell mushroom (Fomes) under a microscope, collected in Lick Creek Park. College Station, Texas, April 29, 2022
Fungus Trichoderma viride on a log on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 24, 2022Racoon Run Trail, College Station, Brazos County, Texas, United States
Green and white crust of fungus Trichoderma viride on a log on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 24, 2022Racoon Run Trail, College Station, Brazos County, Texas, United States
Pattern of fungus Trichoderma viride on a log on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 24, 2022Racoon Run Trail, College Station, Brazos County, Texas, United States
Fungus Trichoderma viride on a stump of hackberry or oak on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 24, 2022Racoon Run Trail, College Station, Brazos County, Texas, United States
Green crust of fungus Trichoderma viride on a stump of hackberry or oak on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 24, 2022Racoon Run Trail, College Station, Brazos County, Texas, United States
Green growth of fungus Trichoderma viride on a stump of hackberry or oak on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 24, 2022Racoon Run Trail, College Station, Brazos County, Texas, United States
Spores (in KOH solution) of fungus Trichoderma viride from a stump, collected in Lick Creek Park. College Station, Texas, August 24, 2022
Spore size 3.2 - 3.8 × 3.1 - 3.57 µm, length to width ratio Q = 1 - 1.1.
Close-up of Trichoderma viride with yellowish mold-like fungus with tufts of conidiophores, may be Arthroconidium, Coremiella cubispora or Wallemia, on underside of a broadleaf log in Lick Creek Park. College Station, Texas, January 9, 2023Racoon Run Trail, College Station, Brazos County, Texas, United States
Colony of orange stalkball fungus Stilbella fimetaria together with Trichoderma viride on dog(?) poop on sewage line in Lick Creek Park. College Station, Texas, February 3, 2023Iron Bridge Trail, College Station, Brazos County, Texas, United States
Orange ellipsoidal conidia of fungus Stilbella fimetaria together with Trichoderma viride on dog(?) poop on sewage line in Lick Creek Park. College Station, Texas, February 3, 2023Iron Bridge Trail, College Station, Brazos County, Texas, United States
Trichoderma viride and Hypomyces(?) fungus on mature thick resupinate polypore Fuscoporia on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 25, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Spores (in KOH) of Trichoderma viride fungus from mature Fuscoporia, collected in Sam Houston National Forest. Texas, February 25, 2023Trichoderma viride, a green crust fungus, was observed in East and Central Texas from 2017 to 2023. The fungus was found on various substrates including fallen branches, logs, tree stumps, and even dog poop. Observations were made in multiple locations, including Hensel Park, Lick Creek Park, Sam Houston National Forest, and Lake Somerville Trailway. The fungus typically appeared as a green crust or patch, sometimes with a whitish or yellowish tint. Microscopic examinations revealed the presence of Trichoderma viride spores. The fungus was often found in association with other fungi, such as Bulbillomyces farinosus and Stilbella fimetaria. These observations suggest that Trichoderma viride is widespread and common in East and Central Texas, and can grow on a variety of substrates. The findings provide valuable information on the distribution and ecology of this fungus species.
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