paraphyses (?) very, very long and slender, seemingly filled with refractive/oily contents; asci with tiny amyloid apical apparatus; spores small, biguttulate, cylindrical to curved-cylindrical to very narrowly ellipsoid.

Spores (some measurements taken from inside asci):

(5.1) 5.6 – 7.4 (8) × (1.5) 1.6 – 2.1 (2.4) µm
Q = (2.4) 2.7 – 4.2 (4.6) ; N = 25
Me = 6.5 × 1.9 µm ; Qe = 3.5

6.93 1.49
5.82 1.84
6.71 1.59
7.27 1.80
6.17 1.97
7.39 1.68
7.26 1.89
5.76 2.39
6.24 1.82
5.62 1.47
6.17 1.87
7.50 1.82
6.20 1.91
5.84 2.01
7.73 2.40
5.08 2.13
6.40 1.60
6.18 1.79
7.20 1.95
5.62 2.06
5.64 1.49
6.91 2.02
5.31 1.71
6.32 1.62
7.41 2.28
0.00 1.86
8.00 0.00
0.00 1.75
7.20 0.00

Substrate: bark of fallen beech log (Fagus grandifolia)

Habitat: mixed forest (oak, maple, beech, birch, white pine & eastern hemlock) with vernal pools, south/southwest of water feature (Mad River) surrounded by suburban development

Ecoregion: Eastern Great Lakes Lowland Forest (NA0407)

Collectors: D. Newman & P. DeSanto

also seen at:

https://www.facebook.com/groups/AscomycetesOfNorthAmerica/permalink/539799003024256/
http://mushroomobserver.org/298752

NOTE: I cannot shrink my images down to 150KB to be uploaded here. they may be viewed at either of the two above links.

Jacques Fournier, 16-11-2017 19:36

Re : Eutypella sp. - 298752

Hi Danny,
not an Eutypella, a genus in which perithecia are in valsoid configuration, in small groups with converging necks.
You should consider Eutypa spinosa, common on beech bark in Europe but I guess you also have it in North America.
Best,
Jacques

Danny Newman, 25-11-2017 05:21

Re : Eutypella sp. - 298752

Thank you Mr. Fournier.  Your ID agrees with the one received on Facebook, and has been applied to the Mushroom Observer post.