Amanita pseudobreckonii-

Single fruiting body beneath Douglas fir and big leaf maple.
Cap: dull, honey yellow with soft easily removable cap patches.
Stem: Soft univeral veil material at top of compact bulb.
Volva is non limbate.
Harvested single specimen and dehydrated for herbarium collection.
My coinciding Mushroomobserver observation below-

https://mushroomobserver.org/495491?q=1nFqD

Single fruiting beneath Douglas fir and big leaf maple.
Cap: dull yellow with soft flat universal veil remnants. Non angular warts.

Stem: non limbate volva. Bulb pointed at base. Soft veil tissue adhering to top of bulb.
Harvested single specimen and dehydrated for herbarium collection.
My coinciding Mushroomobserver observation below-

https://mushroomobserver.org/497103?q=1nN4r

Growing from soil in mixed woods. No discernible odor. Exannulate. Stipe equal, covered in orange powder. Thick velar patch.
Spores globose with a prominent hilar appendage. Large central guttule with granular material around it. Surface appears textured, but does not extend out from cell wall.
Micrographs mounted in distilled water at 1000x. Measurements: (10) 11-12 x (10) 11-12 Q= 1 - 1.09 (1.1) N= 20 Me= 11.3-11.1 Qe= 1

Lyophyllum "spring white" sensu J. Frank

AKA "pale white" sensu D. Miller

AKA "sp-PNW01" sensu S. Russell

AKA "Lyophyllum 'decastes PNW08'" not sure who added this provisional epithet.

Tracking loose synonymies.

Bibliografía y recomendaciones para tus registros. Las fotografías y descripciones que hagas, te van a permitir identificar el ejemplar.

Infografías Hongos de Colombia:
https://drive.google.com/drive/folders/1tn-JDRz-_PIBXYJmyoyvY_IbIkbipGPf?usp=sharing

Más información en:
https://colombia.inaturalist.org/journal/teodoro_chivatabedoya/54937-registro-de-hongos-macromicetos

Bibliografía General de Macromicetos:
https://drive.google.com/drive/folders/19VZivWVc5ueyBABX73KIfBGei9smvMzh?usp=sharing

Otras recomendaciones en:
Grupo XYLARIA Hongos de Colombia ©2016
FACEBOOK: www.facebook.com/groups/xylariahongosBogota/
INSTAGRAM: https://www.instagram.com/hongos_colombia/

Not staining. This has the appearance of a Leucoagaricus but it is not. The gills are sinuate/adnate. The spores ianmyloid. Pileipellis is a cutis with erect terminal element, clamped. It has similar large and plentiful cheilo and pleurocystidia, tending to thick-walled. The sequence, and the micro-morphology, say this is an undescribed species of Albomagister. The macro-morphology is not like A. subaustralis.

RLC1689

Specimens collected, transported, deposited, duplicated, exported and DNA sequenced with the express, written permission of the Ministerio del Ambiente, Agua y Transición Ecológica (MAE) and the Instituto Nacional de Biodiversidad (INaBio), in compliance with the Nagoya Protocol. Copies of permits available to select parties upon request.

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Additional specimens not added to iNat observation fields:
Herbario Nacional del Ecuador: RLC1689

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Originally posted to Mushroom Observer on Feb. 16, 2022.

the most gregarious example of this species observed yet. growing singly but numerously in a roughly 10×10 meter area.

Substrate: in soil

Habitat: lowland tropical rain forest

Ecoregion: Southwest Amazon Moist Forests (NT0166)

Collectors: D. Newman, I. Cuba Pinto & P. Kaishian

Collection #: CHAL135

Collected during the 2017 SUNY-ESF Fungi of Bolivia Field Course & 2nd Field Workshop on Neotropical Polypores

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Originally posted to Mushroom Observer on Apr. 22, 2022.

Substrate: in mossy soil and well-decayed debris

Habitat: dry Curupaú (Anadenanthera colubrina) / Motacú (Attalea phalerata) / Bamboo (Chusquea spp.) forest

Ecoregion: Chiquitano Dry Forests (NT0212)

Collectors: D. Newman, I. Cuba Pinto, E. Melgarejo Estrada, D. Camacho Ramirez & S. Montaño Poquiviqui.

Collection #: DSN12.267 (SS59)