under a slight shrump in the decomposed grantie like sand was a large fruiting of this mushrooms making a half circle around a Chamise plant. Manzanita was ~5 m away, otherwise it was all chamise. No scent. very viscid cap with a slime veil extending down to the stem, stem had large ridge on it making it slightly flocculus. cap had a grey hue to it in situ, but it may have been due to it being past sundown

UVF 365 nm = dramatic blue

Datos de Yopal: registrado en Bosque Seco Tropical (temporada de lluvia). Precipitación mínima de 15 – 25 mm en los meses de enero y diciembre, precipitación máxima 350 mm y 300 mm en los meses de mayo, junio y julio; con menos de 60 mm de lluvia en el mes más seco y precipitación anual superior a 1270 mm. Cuenta con valores mínimos de humedad relativa a inicio del año (65%), y valores más altos en junio, julio, agosto y septiembre (90-85%). Cuenta con una altura sobre el nivel del mar entre 0 y 1000 m, una pluviosidad entre 2000 y 4000 mm y temperatura promedio mayor de 24 °C, con amplitud de temperatura máxima de 8 °C, como se referencia en DANE. Los máximos valores de temperatura no sobrepasan los 36 °C y los mínimos valores no logran bajar los 19 °C que se presentan en febrero y en julio, respectivamente. Temperatura media anual mayor de 20 °C, con una estación seca y una lluviosa bien definidas (Bustamante et al., 2017; DANE, 1999; Castro y Sosa, 2017).

Se observa con frecuencia plantas representativas de la zona como Yarumo (Cecropia peltata), Jobo (Spondias mombin), Cedro (Cedrela odorata), Nauno (Albizzia guachepele), Cañafistol (Cassia moschata), Flor blanco (Tabebuia orinocensis), Uña de gato (Cynodon dactylon), entre otras.

Te dejo algunas recomendaciones para tus registros. Las fotografías y descripciones que hagas, te van a permitir identificar el ejemplar. Más información en: https://colombia.inaturalist.org/journal/teodoro_chivatabedoya/54937-registro-de-hongos-macromicetos

Hongos de Colombia (Bogotá, 2019):
https://www.researchgate.net/publication/343651635_Hongos_de_Colombia_Contribucion_al_Conocimiento_de_la_Biota_Fungica_en_Ecosistemas_de_Humedal_Bosques_Andinos_Subparamos_y_Paramos_de_Bogota_DC

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/

Found by @luanroberts. About 7 mm. Orange bands on white-tipped oral tentacles, orange bands on the white-tipped rhinophores, and white specks on the surface of the body.

Obelia and Tubularia (Pink-mouth hydroid) present elsewhere in the marina in small quantities, but didn't see it feeding.

Looks vaguely like the pale one in the left-side photo on Page 124 of Behrens & Hermosillo's Eastern Pacific Nudibranchs, 2005. Same individual as https://www.inaturalist.org/observations/91332884

Update: this hydroid https://www.inaturalist.org/observations/92299348 was the only hydroid on the boat bumper where it was found.

Found in landscaping. 3 or 4 mushrooms total. Very strong red staining after about 30 seconds. Image 8 is cheilocystidia. All microscopy images taken at 1000x.

Spores: 5 - 6.2 x 3 - 3.5 µm
Mean: 5.5 x 3.3 µm
N: 28
Q: 1.66
F000039

Had green stains on cap, so I dropped KOH on it and surprisingly it caused a green reaction.

Microscopy =
spores = 9-10 x 6
Pleurocystidia = lanceolate to fusiform, thick walled and numerous

Gill edges UV fluorescent

Growing in the decomposing material underneath patches of reeds next to the lake shore. No blueing noted. Smell fungoid, taste fungoid with very slight bitterness. No reaction to KOH on pileus or stipe. No UV fluorescence noted at unknown wavelength of UV flashlight. Micrographs are at 1000x using congo red washed with KOH of the gill edge with cheilocystidia, and the non-stained gill edge using KOH. Hygrophanous cap, Spore print something like chocolate lavender.

NOTE: The first photo does not accurately show the color of the pileus, please see other photos.

Something unusual, I have never seen this species before. Found by @quickanddirtygardens in a small patch of old growth forest near the Oregon coast away from any trails. Growing singly on the ground, near, but not on wood.

Stipe on mature specimen 19 cm long! By 1 cm wide. Hollow interior, bulbous base. Seems like an Agrocybe as far as I can guess. At the Mushroomexpert.com key it fit best with A. firma. However, it was growing close to, not on wood, not in clusters and as far as I can tell there is no record of the species for the west coast in any local key or book. The stipe is also more than two times as long as the top range for that species. The spores (20 of them measured tediously and carefully by @stellar_viscera) were also too large for that species, measuring 9-12 x 6-7.8 microns. Spores are in range for A. putaminum, but the stipe length is still 2x longer than the range given for that species, and the cap seems darker/less yellow than the description.

Slight yellowing of stipe with KOH. Slides of spore print included with an Agaricus (top) for color comparison. They are a warm brown. I am drying the specimen and may have it sequenced through the Oregon Mycological Society. I welcome any species suggestions.

This entire grass arc has these weird partially close capped Panaeolus all over. This grass was laid within the past year so this is the first summer cycle for it. Slight blue stain to base of stipe

Microscopy:
spores = 15 x 8.75 um
basidia =
clamps = present

A mycorrhizal species associated with introduced Silver Birch, this species appears to be a first report for California. Although the sequence was not entirely clean, it did show similarity to N. salicis and N. bohemica.

Found growing under Populus tremuloides

Micrographs taken on samsung phone camera. All photos at 1000x using congo red stain. Eyepiece micrometer calibrated to 1um per tic at 1000x

.ab1 file located at
https://drive.google.com/drive/folders/1NP6hKn5e1v28c6DC_oC2Dw8E851tWeKj?usp=sharing

See also- (thanks Damon)
https://www.inaturalist.org/observations/49911583
https://www.inaturalist.org/observations/49910065

Apparent host
https://www.inaturalist.org/observations/49910714

This grass had a "seed" on it that had strong UV fluorescence that the moth in the previous observations was attracted too. The stamens though appeared to be present beneath the UV fluorescent bit at about the same distance as the moths body.

Growing on Sargent Cypress wood, well decayed

KOH = no reaction

spores = irregular and angular 10-11 x 6-7 um, inamyloid,

Basidia = ~40-45 x 6-8 um

did not see clamps
did not see Cheilocystidia

Smells like peas, almost bleachy but not like leptocephala. Taste is unpleasant at first and then strongly acrid and bitter, and leaves a burning sensation in the mouth for several minutes.

All microscopy at 1000x numbers on scale bar are 10um, notches are 1um. 1st image is spores in KOH. The rest are congo red. 2nd is hyphae from stipe cortex close to gills. 3rd is stipe cortex, but seems to have basidia and these other weird cells found on gill edge. 4 is gill edge for comparison, 5 and 6 are from stipe cortex, looks like the caulocystidia. The last two are from the gill edge.