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Aecidies sur Lycopus uniflorus. À proximité, Scirpus cf. pedicellatus avec des télies sur les feuilles séchées de l'année dernière.

Avec @m-bibittes
Spécimens: Léveillé-Bourret & Garon-Labrecque 1437 (CMMF) [I,II ex Lycopus uniflorus]
Léveillé-Bourret & Garon-Labrecque 1438 (CMMF) [IV ex Scirpus cf. pedicellatus]

Abundant large telia, hypophyllous (maybe amphigenous) on Solidago. Puccinia stipae stand out as a possibility among the Puccinia spp. that grow on Solidago, since the teliospores are relatively wide.

Measurements
Teliospores
40–52×24–26 μm
Urediniospores
23–26×20–22 μm

Images
Slides in KOH
2: Teliospores
3: Urediniospores
4: Possibily basidiospores, otherwise extraneous

On Morella sp., prev obs
Whoa! the USDA Fungal databases only list ONE species of fungus affecting Morella sp, and it's not a rust. I can't find any info about rusts on Morella at all :-O*

*granted, I looked for only like 3 minutes... but that's usually enough to give me SOMETHING.

Orange coating on ellipsoid/spheroid growths on Clematis stems, possibly Clematis virginiana.
Micro is at 400x. One photo shows powder (presumably spores) dropped only a slide; other photo is a smash-mounted sliver of the ellipsoid/spheroid growth.

On hardwood. Brown and shriveled in the field, but rehydrated when left in a moist chamber for a day. Hymenium yellow, becoming orange brown. The receptacle is scurfy brown. Clustered and erumpent through the bark. The largest slightly larger than 2mm in diameter. Some with short pseudo stipe.

Asci:
IKI-, croziers+, clavate, 35-54 x 4-7µm

Spores:
biseriate in the asci, hyaline, fusiform, sometimes slightly curved, usually with two oil drops,
5.0-7.6 (8.5) x 1.7-2.0 (2.3)µm
Me 6 x 1.9µm
N=48
Q 2.5-4.3 MeQ=3.1

Paraphyses:
septate, slightly tapering, about 2µm wide

Ectal excipulum brown, textura angularis.

KOH produces red pigments (ionomidotic reaction)

Probably the same as:
https://www.inaturalist.org/observations/101202167

On a Physcia species, probably (by local abundance) Physcia stellaris.

On the far left in the 2nd photo.

3rd photo, just right of center - a stalk arises from an apothecium

Reference: Flora of Lichenicolous Fungi, 2022, page 298.

On Buellia stillingiana, which is looking the worse for wear.

Reference: Flora of Lichenocolous Fungi, 2022, p. 306 :

"Cyphobasidium buelliicola Diederich & W. R. Buck,
sp. nov.

Diagnosis : Characterized by the waxy-gelatinous, orange-brown, pulvinate basidiomata, 0.2–0.45 mm diam., developing on Buellia stillingiana, the elongate ellipsoid probasidia, often with a stalk-like base, 18–32 × 5–8 μm, the cylindrical, 3-sep- tate meiosporangia, 30–40 × 4–6 μm, the cylindrical to subuliform, 1.5–2.5 μm thick and 5–7.5 μm long epibasidia, and the ellipsoid basidiospores, 5–6 × 3.5–4.5 μm."