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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Tricholomataceae: Macrocybe titans (H.E.Bigelow & Kimbr.) Pegler, Lodge & Nakasone

Macrocybe titans – American titan

Synonym: Tricholoma titans.

Common names: American titan, Giant Gilled Mushroom.

Extract from Wikipedia article: Macrocybe titans is a species of mushroom native to Florida, Central and South America,

AI-generated description

Macrocybe titans is a species of fungus that belongs to the family Inocybaceae. It is characterized by its large size, with caps reaching up to 30 cm in diameter, and a brown to tan-colored appearance. In East and Central Texas, Macrocybe titans has been found growing in fields, meadows, and along roadsides, typically in association with grasses and other herbaceous vegetation. Fruitings often occur from May to October, with peak activity during the summer months. The fungus is considered rare in the region, but can be locally abundant in areas with suitable habitat.

Photos of this mushroom from East and Central Texas

<B>Macrocybe titans</B>(?) mushrooms on a lawn at Wolf Pen Creek Trail. College Station, Texas, <A HREF="../date-en/2013-10-03.htm">October 3, 2013</A>
LinkMacrocybe titans(?) mushrooms on a lawn at Wolf Pen Creek Trail. College Station, Texas, October 3, 2013
Location on mapsWolf Pen Creek Trail, College Station, TX 77840, USA
Massive white mushrooms of <B>Macrocybe titans</B> on an extension of Racoon Run Trail in Lick Creek Park. College Station, Texas, <A HREF="../date-en/2013-10-23.htm">October 23, 2013</A>
LinkMassive white mushrooms of Macrocybe titans on an extension of Racoon Run Trail in Lick Creek Park. College Station, Texas, October 23, 2013
Location on mapsRaccoon Run, College Station, TX 77845, USA
Large mushrooms of <B>Macrocybe titans</B> on extension of Racoon Run Trail in Lick Creek Park. College Station, Texas, <A HREF="../date-en/2013-10-27.htm">October 27, 2013</A>
LinkLarge mushrooms of Macrocybe titans on extension of Racoon Run Trail in Lick Creek Park. College Station, Texas, October 27, 2013
Location on mapsRaccoon Run, College Station, TX 77845, USA
Dissected mushroom <B>Macrocybe titans</B> from a lawn in Lemontree Park. College Station, Texas, <A HREF="../date-en/2017-11-16.htm">November 16, 2017</A>
LinkDissected mushroom Macrocybe titans from a lawn in Lemontree Park. College Station, Texas, November 16, 2017
Location on mapsBee Creek, College Station, TX 77840, USA
Mushroom <B>Macrocybe titans</B> on roadside in Lick Creek Park. College Station, Texas, <A HREF="../date-en/2018-09-25.htm">September 25, 2018</A>
LinkMushroom Macrocybe titans on roadside in Lick Creek Park. College Station, Texas, September 25, 2018
Location on maps14802 Rock Prairie Rd, College Station, TX 77845, USA
Dissected mushroom <B>Macrocybe titans</B> in Lick Creek Park. College Station, Texas, <A HREF="../date-en/2018-09-25.htm">September 25, 2018</A>
LinkDissected mushroom Macrocybe titans in Lick Creek Park. College Station, Texas, September 25, 2018
Location on maps14802 Rock Prairie Rd, College Station, TX 77845, USA
Mushrooms <B>Macrocybe titans</B> at the edge of a lawn in Wolf Pen Creek Park. College Station, Texas, <A HREF="../date-en/2022-05-25.htm">May 25, 2022</A>
LinkMushrooms Macrocybe titans at the edge of a lawn in Wolf Pen Creek Park. College Station, Texas, May 25, 2022
Location on mapsHolleman Drive East, Castle Rock Apartments, College Station, Brazos County, Texas, 77840, United States
Cross section of mushrooms <B>Macrocybe titans</B> at the edge of a lawn in Wolf Pen Creek Park. College Station, Texas, <A HREF="../date-en/2022-05-25.htm">May 25, 2022</A>
LinkCross section of mushrooms Macrocybe titans at the edge of a lawn in Wolf Pen Creek Park. College Station, Texas, May 25, 2022
Location on mapsHolleman Drive East, Castle Rock Apartments, College Station, Brazos County, Texas, 77840, United States
Underside of mushrooms <B>Macrocybe titans</B> at the edge of a lawn in Wolf Pen Creek Park. College Station, Texas, <A HREF="../date-en/2022-05-25.htm">May 25, 2022</A>
LinkUnderside of mushrooms Macrocybe titans at the edge of a lawn in Wolf Pen Creek Park. College Station, Texas, May 25, 2022
Location on mapsHolleman Drive East, Castle Rock Apartments, College Station, Brazos County, Texas, 77840, United States
Gills of mushrooms <B>Macrocybe titans</B> at the edge of a lawn in Wolf Pen Creek Park. College Station, Texas, <A HREF="../date-en/2022-05-25.htm">May 25, 2022</A>
LinkGills of mushrooms Macrocybe titans at the edge of a lawn in Wolf Pen Creek Park. College Station, Texas, May 25, 2022
Location on mapsHolleman Drive East, Castle Rock Apartments, College Station, Brazos County, Texas, 77840, United States
Spores of mushrooms <B>Macrocybe titans</B> under a microscope, collected in Wolf Pen Creek Park. College Station, Texas, May 25, 2022
LinkSpores of mushrooms Macrocybe titans under a microscope, collected in Wolf Pen Creek Park. College Station, Texas, May 25, 2022
Large box of dried specimens of mushrooms <B>Macrocybe titans</B> collected in Conroe, Texas, in S. M. Tracy Herbarium of Texas A and M University. College Station, Texas, <A HREF="../date-en/2022-06-05.htm">June 5, 2022</A>
LinkLarge box of dried specimens of mushrooms Macrocybe titans collected in Conroe, Texas, in S. M. Tracy Herbarium of Texas A and M University. College Station, Texas, June 5, 2022
Giant dried specimens of mushrooms <B>Macrocybe titans</B> collected in Conroe, Texas, in S. M. Tracy Herbarium of Texas A and M University. College Station, Texas, <A HREF="../date-en/2022-06-05.htm">June 5, 2022</A>
LinkGiant dried specimens of mushrooms Macrocybe titans collected in Conroe, Texas, in S. M. Tracy Herbarium of Texas A and M University. College Station, Texas, June 5, 2022

AI-generated summary of observations

Multiple observations of the fungus Macrocybe titans were recorded in East and Central Texas, primarily in College Station. The mushrooms were found on lawns, trails, and roadsides in various parks, including Wolf Pen Creek Trail, Lick Creek Park, and Lemontree Park. Observations took place over several years, from 2013 to 2022, with multiple sightings in October and November, suggesting a fall fruiting period. The mushrooms were often described as massive or large, with some specimens collected and preserved in the S. M. Tracy Herbarium of Texas A&M University. Detailed observations included dissected specimens, cross-sections, and microscopic examination of spores, providing a comprehensive understanding of the fungus's morphology. The sightings were concentrated in College Station, with one additional collection reported from Conroe, Texas.

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