Sobre el fango en el cauce de un riachuelo bajo hayas. Hasta 10 mm de diámetro.
Pelos muy cortos entre 5-10 septos, puntiagudos, algunos en forma de "s", otros rectos, atenuados en la base y con base simple, bifurcada y alguna (muy pocas), trifurcada de
(243.2) 296.8 - 396.3 (445.3) × (14.2) 15.8 - 22.9 (24.5) µm
Me = 342.4 × 19.1 µm
Ancho de la pared de los pelos entre (3.8) 4 - 5.1 (5.6) µm
Esporas de ampliamente elipsoidales a elipsoidales con ornamentación muy leve, con verrugas pequeñas algunas interconectadas de < 1µm de diámetro de
(20.2) 20.6 - 22.9 (23.2) × (13.6) 14.1 - 15.9 (16.4) µm
Q = (1.3) 1.4 - 1.5
Me = 21.7 × 15.1 µm ; Qe = 1.4
Perisporio que no se afloja al calentar en azul de lactofenol.
Descarto Scutellinia olivascens y Scutellinia patagonica porque tienen pelos más grandes, más anchos y basalmente multifurcados. Y distinta ornamentación esporal.
Apothecium 22mm in length on rotten wood, under hardwood.
Asci 8-spored, uniseriate, H+.
Ascospores smooth, biguttulate, ellipsoid, measured
*(12.6) 12.7 - 13.9 (14.2) × (6.1) 6.3 - 6.6 (7.2) µm
Q = (1.9) 2 - 2.1 (2.2) ; N = 18
Me = 13.2 × 6.5 µm ; Qe = 2
Paraphyses with mutliguttulate VBs, septate, crook or crescent.
The first ID suggestion posted to facebook Ascomycetes of NA was Sowerbyella rhenana, a good starting point, but likely not the correct ID, as the mature spores dropped by my fruit bodies have dimensions 9-13 x 4-5.5(6.5) that era significantly different from what is reported for S. rhenana, 18-23(26.3) x 9-13.
I posted this to Asco France and got soem good help from those folks. A key provided led me to three names of species that are similar: S. radiculata var. kewensis, S. polarpustulata, S. brevispora. The latter seems like the best match, although the color of the hymenium is described as darker than for my observation. I used the following chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.funga.fi/Karstenia/Karstenia%2024-1%201984-4.pdf .
Material has been dehydrated and is available for study.
Mirrored at https://mushroomobserver.org/550082?q=1oaSB. Also, see discussions at Facebook Ascomycetes of NA and Asco France.
Brown warts on outer surface. Spores 17.5-19.0 x 8.5-9.0 um; asci 8 spores 330-350 x 11-14 um. Saved for sequencing.
Black cup fungi was growing on the ground under oak, maple... Apothecium cupulate, 2.5cm in diameter, sessile.
Asci operculate, 8-spored, uniseriate with croziers, J+.
Ascospores are ellipsoid, biguttulate, hyaline, reticulate, measured from asci
12.1 - 12.9 (13.4) × (7.8) 8.1 - 8.8 (9.1) µm
Q = 1.4 - 1.6 (1.7) ; N = 8
Me = 12.5 × 8.5 µm ; Qe = 1.5
Paraphyses filiform, septate with VBs.
Directly on a boardwalk.
Asci 8-spored, H+.
Ascospores fusiform, multiguttulate, with small isolated warts visible under oil objective.
Paraphyses cylindrical, straight, not enlarge at the apex, with low refracting guttules, septate.
Marginal hairs brown, length 300-500um.
On a bare ground next and right on the hiking path in a mixed forest.
Asci 8-spored, H+.
Ascospores ellipsoid, verrucose, biguttulate, measured
*(13.6) 14.6 - 16 (16.3) × (7.7) 8.4 - 9.1 (9.2) µm
Q = 1.7 - 1.8 (1.9) ; N = 18
Me = 15.4 × 8.7 µm ; Qe = 1.8
Paraphyses cylindrical, septate.
On the bare ground in a mixed forest. Mostly under hardwood.
A single apothecium was 7mm in diameter, sessile and matured.
Asci operculate, IKI+ [WTR], uniseriate.
Ascospores ellipsoid, smooth, eguttulate, thick-walled, measured
*(18.4) 18.8 - 21.6 (21.8) × (9.4) 9.6 - 10.9 (11.4) µm
Q = (1.7) 1.75 - 2.06 (2.1) ; N = 13
Me = 19.9 × 10.4 µm ; Qe = 1.9
Paraphyses cylindrical to slightly enlarge at the apex, septate. Top segment multiguttulate.
On a bare ground in a mixed forest. I tested 6 cups that were A. viridis.
I found one more cup on Jun 25, 2024 at the same spot. It was the same species.
On bare ground, in a mixed, wet forest close to a marsh tiny whitish cup fungi. Growing scattered in two spots, about a dozen fruiting bodies in each spot.
Apothecia sessile, pulvinate, with smooth margin, 0.5-1mm in diameter. They look like grains of sand.
Asci operculate, 8-spored, H+, biseriate.
Ascospores ellipsoid, hyaline, with big round warts and multiguttulate.
Paraphyses filiform, hooked, sometimes with small guttules, septate.
Margin textura globulosa.
Observed again on June 25, July 2 and July 21 2024.
On the ground in a mixed forest.
I found it again on July 2, 2024 in the same area.
Growing on ground underneath white pines
A single cup was found on the ground in a mixed forest, next to a hiking path.
Apothecia sessile, yellow-green, about 5mm in diameter.
Asci 8-spored.
Ascospores fusiform with ridges, purple at maturity.
Reoccuring species on the same spot. About a dozen of fruiting bodies.
Apothecia stipitate, 5-6mm in diameter.
Asci 8-spored, operculate, H+.
Ascospores ellipsoid, mostly uniguttulate when matured, reticulate.
Paraphyses cylindrical, bright orange.
Margin with hyaline hairs. Some hairs thick-walled.
On decaying Betula papyrifera. Similar looking fruits were widespread in the forest on other hardwoods. Violet tones noticable when pseudostem was broken.
Heavily sporulating days after collected.
Ascospores elliptical, with distinctly round warts prevalent. Spores often with rounded apiculi at the ends.
(17.7) 18.6 - 20.1 (20.6) × (8.2) 8.4 - 9.3 (9.6) µm
Q = (1.9) 2 - 2.28 (2.3) ; N = 33
Me = 19.4 × 8.9 µm ; Qe = 2.2
Asci
(242.3) 246 - 268.3 (281.2) × (12.1) 12.2 - 14.4 (17.6) µm
Q = (14.6) 17.3 - 22 (22.4) ; N = 17
Me = 259.9 × 13.6 µm ; Qe = 19.4
Paraphyses simple, with rounded ends which are sometimes subclavate.
3-5um wide, up to 5.4um wide at apex. -- n=10,
Medium and large size cup fungi were growing on the ground in a mixed forest (burr oak, basswood, ash, sugar maple, prunus, betula, white pine, cedar…) the largest apothecium was 14cm in diameter, many were around 10cm.
Asci operculate, 8-spored, H+, uniseriate, IKI+.
Ascospores fusiform, verrucose, multiguttulate, hyaline, measured
*(16.4) 17.6 - 18.4 × (7.5) 7.6 - 8.49 (8.5) µm
Q = (2.1) 2.14 - 2.36 (2.4) ; N = 12
Me = 17.9 × 8 µm ; Qe = 2.2
Paraphyses cylindrical, mostly straight, septate, width 4.5-5.5um.
Medullary excipulum with 3 layers.
In a mixed forest, near basswood, solitary cup was growing from the ground. Apothecium 23mm in diameter.
554
Spore Print: white