Favoritos de zayskibop

Mag. 400x

• sediment samples were collected by the 2023 Desmid Project team of @karolina et al at Victory Basin sample site 3.

Staurastrum (5-arm). Size: 55µ W (with arms), 18µ W (without arms). Possibly Staurastrum arachne as seen here http://protist.i.hosei.ac.jp/PDB/Images/Chlorophyta/Staurastrum/Eustaurastrum/Processiformes/5_arms/arachne/index.html.

Mag. 400x

• sediment samples were collected by the 2023 Desmid Project team of @karolina et al at Victory Basin sample site 3.

Onychonema as seen here http://cfb.unh.edu/phycokey/Choices/Charophyceae/Desmids/desmid_filaments/ONYCHONEMA/Onychonema_Image_page.html.

Mag. 400x

• sediment samples were collected by the 2023 Desmid Project team of @karolina et al at Victory Basin sample site 3.

Staurastrum (4-arm). Size: ~30µ L x 55µ W (including arms), 18µ W (without arms); isthmus ~10µ.

Mag. 400x

• sediment samples were collected by the 2023 Desmid Project team of @karolina et al at Victory Basin sample site 3.

Staurastrum. Size: 22µ L x 30µ L; isthmus 9µ. Similar in size, lateral spines, and granular surface as seen for Staurastrum polymorphum, https://www.outerhebridesalgae.uk/desmids/desmid-species.php?id=585 and http://www.digicodes.info/Staurastrum_polymorphum.html.

Asci IKI+, croziers, 210-260 x 22-26µm
Spores hyaline, mostly biguttulate, ellipsoid with tapered ends, 10.5-11.8 x 4.4-5µm

Duplicate of https://www.inaturalist.org/observations/179274112

Collected for the 2023 Purchase Knob AscoBlitz

Fuzzy/pink fungi growing on what looks like a dried up/old bug under shore pine,
Also found more on what looks like plant matter/bark?,
No odor,
Mild UV,
Reddish brown KOH; yellow green under UV

Single specimen found near the trunk of an eastern white pine (Pinus strobus) in a cluster of pine trees at perimeter of small grass field.

Dimensions:
Cap diameter 15.2 cm.

Stipe length 15.4 cm, excluding underground swollen base of 2.7 cm.
Stipe diameter narrows from 3.2 cm at base to 2.1 cm at apex.

Cap was covered with brown-yellow-orange scales.

The cap had not expanded at the time of collocation. I put the base of the specimen in water overnight and the cap opened to reveal light brown gills, which subsequently progressed to dark brown.

The partial veil was very thick, robust.

No odor was detected at time of collection, but almond odor was observed in later examination after bisecting the stipe.

Bisecting the stipe confirmed that it was hollow stuffed. KOH on pileus, stipe and context of stipe produced a yellow reaction (fainter on the cap, perhaps because it was somewhat dry). Also noted reddening of interior of stipe on exposure.

Typical A. campestris have been observed in an adjacent grass field in prior years. One almond scented Agaricus was found about 13 years ago in a median strip across the street from this pine stand (https://mushroomobserver.org/45991?q=1oyLM). That specimen was not similar - cap was white, with no scales, and partial veil was not as robust.
See https://mushroomobserver.org/names/59447?q=1oyLM for description of A. nanaugustus.

This appears to be the first observation of this species in Maryland, though there have been observations in adjacent states (DC, Virginia, West Virginia and Pennsylvania).

Will attempt to sequence this specimen to confirm ID.

On dead dead inflorescence of Hesperoyucca whipplei.

Ascomata turbinate pseudothecia 0.3-0.4 mm in diameter (most collapsed), superficial on herbaceous host, not crowding together; ostiole opening 50 µm. Asci 8-spored, lanceolate in immaturity, apex not noticeably IKI reactive, 70-75 x 5-8 µm. Paraphyses abundant, filiform, simple, tips IKI+ blue. Ascospores phragmosporous (croissant-like), 3-5 septate, pigmented yellow, 17-22 x 5.5x7 µm.

Growing gregariously on the underside of a decorticated Pinus taeda log in a mixed pine-hardwood forest. Basidiocarps pure white; pendent; finely hairy; tubular; up to 1 mm long and 0.4 mm wide. Subiculum absent. All structures hyaline. Clamps present on tramal hyphae. All structures inamyloid. Hairs sparsely branched; smooth. Basidia 2-sterigmate, at least some basally clamped. Branched hairs occurring over the entire exterior of basidiocarps and not just the on the “mouth” of the tube. Spores hyaline, smooth, thin-walled and subglobose. Spore measurements: (5.1) 5.5 – 7 (7.9) × (4.9) 5.1 – 6.3 (7.6) µm; Q = 1 – 1.1 (1.2); N = 30; Me = 6.1 × 5.7 µm; Qe = 1.1

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Additional notes for sequences (bases on the right):

ITS:
LSU:

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Originally posted to Mushroom Observer on Jun. 11, 2022.