Favoritos de stucumber

Growing in ridgetop old growth redwood forest along the fog drip line. Pileus dark grey, lighter at the margins, flat to slightly dimpled. Lamellae grey, widely attached. Stipe grey, with white basal tomentum.

Growing in ridgetop old growth redwood forest along the fog drip line. Pileus flat to umbilicate, light dull grey. Lamellae greenish grey, widely attached to decurrent. Stipe thin, grey, ornamented with granules that cluster towards the apex.

Fairly abundant, seemed to prefer exposed/dry/disturbed areas. Always partially exposed. Rich, complex aroma with notes of soy sauce. Purple gleba seemed to become more colorful upon initial exposure to air.

Another long term brainworm genus+species - upon digging through the literature, realizing that this is a long and winding wormhole…. This collection was fruiting abundantly throughout the interior of this soggy hardwood (likely Tan Oak) log. At first glance they remind me of shorter, skinnier, hairier, yellowish brown toned Henningsomyces. Some fruitbodies have a cone shape instead of being straight-sided tubes - this is easiest to spot in the largest fruitbody in the photo 1. The white fuzz visible in the first photo was covering the subsection I eventually photographed.

Macro Summary:
Receptacles sessile to short-stipitate, pale honey-yellow color, scattered to closely gregarious, 0.25—1.5 mm. high, 0.25mm-ish in diameter, tubular to narrowly cup or cone shaped, finely fibrillose with pale honey yellow appressed hairs (see photo 5); without subiculum; hymenophore appearing smooth white (see photo 4); margin white or paler than rest of fruitbody; Odor: indistinct; did not taste: milk none observed (water stuck in the tube may appear to be milk but it is not); did not check chemical changes; Spore Deposit: ??

Micro Summary:
Did not succeed in getting a spore print or a slide where the hairs were not overwhelming the basidia and spores – poss elliptical spores, but hard to say or measure with confidence. Hairs unbranched, thick-walled, brown and finely encrusted over their entire lengths (see photo 7) - therefore leaning Maireina rather than Merismodes (see Zibarova below).

Useful Obs:
Heelsplitter 2022: https://www.inaturalist.org/observations/145780266 (Maireina maxima w microscopy and DNA)
Betweenthelyons 2022: https://www.inaturalist.org/observations/144394042 (Genus Maireina w DNA)
Leptonia 2019: https://www.inaturalist.org/observations/20518937 (Genus Maireina w microscopy & DNA)

References Consulted:
Cooke, 1959, The Cyphellaceous Fungi: A Study in the Porotheleaceae https://www.zobodat.at/pdf/Sydowia-Beihefte_4_0001-0144.pdf

Laessoe et al, 2016 A new species of Maireina on Filipendula ulmaria, https://www.funga.fi/Karstenia/Karstenia_56-1-2_2016-5.pdf
Zibarova, 2019, Some Cyphelloid Fungi_with Cylindrical Fruit-bodies in the Czech Republic (in Czech but I Google Translated) https://www.researchgate.net/publication/337898772_Nektere_cisovcovite_houby_s_trubicovitymi_plodnicemi_v_Ceske_republice_Some_cyphelloid_fungi_with_cylindrical_fruit-bodies_in_the_Czech_Republic

Per Zibarova: Syn.: Merismodes ochracea (Hoffm.) D. A. Reid, Phaeocyphellopsis ochracea (Hoffm.) W. B. Cooke, Solenia ochracea (Hoffm.) Pers., Cyphellopsis maxima (Massee) Donk, Maireina maxima (Massee) W. B. Cooke, Solenia maxima Massee. Also see taxon name changes at https://www.mycobank.org/page/Name%20details%20page/573202
The GBIF image gallery includes a herbarium slip for a P. ochracea obs from Cooke, collected in Inverness, Marin County on Coast Live Oak.

Microscopy by @rudydiaz:

FDS-CA-00356
Polyporaceae

Hyphae dimitic; first type 3-4.3 µm thick, with patches of encrustations; second type 2.9 µm thick.
Clamp connections present, sparse. Basidia 4-spored.
Spores: Elliptical, slightly roughened;
(8.6) 9.5 - 10.8 (11.5) × (3.7) 3.74 - 4.8 (4.9) µm
Q = (2.1) 2.2 - 2.6 (2.7) ; N = 30
Me = 10.1 × 4.2 µm ; Qe = 2.4.

10.51 4.56
10.35 4.90
9.98 4.04
8.56 3.74
9.69 3.70
10.09 3.95
9.53 3.74
10.24 4.06
9.46 4.00
10.42 4.29
10.08 4.55
10.37 4.12
10.81 4.82
10.13 3.90
10.32 4.42
11.49 4.79
10.19 3.85
9.42 4.22
9.71 4.30
9.43 3.68
9.88 3.82
9.70 3.74
10.13 4.43
10.19 4.00
10.84 4.09
10.49 4.02
9.71 3.80
11.15 4.91
9.90 4.56
11.43 4.59

Exudate longwave UV reactive. Exudate present before disturbance. Cap sticky. Adjacent to Ceanothus crassifolius. Other species present include Salvia mellifera, Adenostoma fasciculatum, Eriogonum fasciculatum.

Growing from duff and organic matter under Ribes nevadense understory- Calocedrus decurrens, Abies and Alnus rhombifolia nearby
Near East Fork Barton Creek, San Bernardino NF
Subdecurrent gills with pale pink spore print (seen in third photo)
Farinaceous/cucumbery smell
Very bitter/chemically taste
Slightly UV reactive (hard to get photo)

First photo showing red-brown KOH rxn on cap and stipe.

Microscopy by @rudydiaz:
FDS-CA–00355
Calonarius

Spores:
Almond-shaped, roughened;
(9.8) 10.1 - 11.1 (11.7) × (5.3) 5.4 - 6.3 (6.7) µm
Q = (1.5) 1.7 - 1.9 (2.1) ; N = 30
Me = 10.5 × 5.9 µm ; Qe = 1.8.

9.80 5.61
9.86 5.76
10.07 5.47
10.89 5.72
10.17 5.63
10.37 5.41
11.17 5.32
10.85 6.33
9.88 6.05
10.61 6.06
10.21 5.43
10.91 5.53
10.55 6.13
10.96 6.19
10.41 6.09
10.99 6.28
10.27 5.61
10.32 5.94
11.07 5.99
10.14 5.66
10.17 5.84
10.53 5.43
10.29 5.54
11.63 5.65
10.08 6.42
10.90 5.61
10.06 6.67
11.72 6.39
10.89 6.20
10.69 5.57

Same fruitbodies as:
https://www.inaturalist.org/observations/179688903

Microscopy by @rudydiaz:
FDS-CA-00345
Inocutis

Cellular features:
Hyphae dimitic; 'type 1' is hyaline, 6 µm thick (walls 0.8 µm), agglutinating into thicker hyphal yarns 35 µm thick, which weave together forming the primary mass of the carpophore; 'type 2' is brown, 5 µm thick (walls 1 µm), occurs only on cap surface, and produces setae.
Cap setae 20 - 40 µm long; hymenial setae lacking. Cystidia lacking.

Spores:
Elliptical, smooth, light brown, thick-walled (0.8 µm);
(6.3) 6.8 - 7.6 (7.9) × (4.3) 4.4 - 5.7 (5.9) µm
Q = (1.2) 1.3 - 1.6 (1.7) ; N = 30
Me = 7.2 × 5.1 µm ; Qe = 1.4.

7.34 4.70
6.34 5.01
7.24 4.86
7.08 5.72
6.95 4.28
7.34 4.82
6.80 4.96
7.25 4.83
7.85 4.91
7.55 4.96
7.72 5.44
7.51 5.89
6.74 4.49
7.15 5.48
7.22 5.28
6.92 5.40
7.64 5.58
7.04 4.65
7.21 5.27
7.72 5.09
6.29 4.41
7.48 4.44
7.07 4.41
7.10 5.73
7.13 4.54
7.30 4.94
7.08 5.48
7.59 5.92
7.04 5.06
7.25 5.61

KOH yellow-green

Microscopy from @rudydiaz:

FDS-CA-00318
Lactarius

Spores:
Elliptical; ornamentated with latitdinal ridges (zebra-stripe-like); amyloid;

(8.3) 8.9 - 10.7 (11.7) × (6.7) 7.1 - 8.3 (9.5) µm
Q = (1.1) 1.2 - 1.4 (1.5) ; N = 30
Me = 9.9 × 7.6 µm ; Qe = 1.3.

8.25 6.86
9.47 8.27
9.85 7.62
8.91 7.08
8.88 7.19
10.37 8.28
9.72 7.23
10.30 7.96
9.44 7.91
9.80 7.19
9.86 6.73
9.76 7.20
9.49 7.68
10.67 7.95
10.03 7.56
11.16 8.00
10.16 7.63
8.71 7.24
9.24 7.81
9.72 7.10
9.57 7.33
9.75 7.08
10.33 7.65
10.13 7.51
10.52 7.47
9.02 6.75
10.28 7.71
10.69 8.44
10.06 8.05
11.67 9.47

Microscopy by @rudydiaz:

Pileipellis a cutis, lacking distinctive terminal cells.

Spores: Angular, 5 to 9-sided;
(8.5) 9 - 10.9 (13) × (5.9) 6.1 - 7.2 (8.3) µm
Q = (1.3) 1.4 - 1.7 (1.8) ; N = 30
Me = 10 × 6.8 µm ; Qe = 1.5.

9.92 6.44
10.86 7.17
9.03 6.42
8.91 5.94
9.10 6.41
10.59 6.96
10.88 6.34
12.99 7.18
9.55 6.91
9.55 6.54
9.51 6.96
10.95 7.04
10.62 5.86
9.00 6.71
0.00 8.34
10.55 6.45
10.19 6.80
8.49 6.15
10.72 7.15
9.51 6.61
9.02 6.13
9.55 6.38
10.09 7.01
9.32 6.77
11.02 7.68
10.86 6.10
9.48 7.18
8.79 6.27
10.10 7.18
10.42 7.18
10.87 7.85

under Chamaebatia australis and Ceanothus tomentosus.

Microscopy below generated by @rudydiaz:

Pileipellis a cutis of cylindrical hyphae 3.4 µm thick, roughened exterior.
Spores: Angular, 6 to 8-sided in profile;
(7.8) 9.1 - 10.6 (11) × (5.1) 5.9 - 7 (7.8) µm
Q = (1.3) 1.34 - 1.7 (1.8) ; N = 30
Me = 9.8 × 6.5 µm ; Qe = 1.5.

9.61 6.44
7.99 5.97
10.99 6.44
10.39 6.49
10.97 6.50
8.48 6.71
9.41 6.63
9.83 7.10
9.94 7.83
10.33 6.79
9.20 6.58
10.41 6.47
10.01 6.36
10.19 6.92
7.78 5.09
9.41 6.29
10.64 5.88
9.14 6.01
9.45 6.41
10.38 6.92
10.24 6.02
9.18 6.05
9.65 6.54
9.19 7.02
10.33 6.49
10.59 7.02
10.60 5.93
10.20 6.33
9.52 6.72
10.02 5.92

The following microscopy generated by @rudydiaz:

Cyanula "Deep Blue"

Pileipellis a cutis composed of cylindrical hyphae,
with pronounced pigmented terminal cells 68-80 x 8-12 µm, subclavate to cylindrical.
Oleiferous hyphae present in pileipellis.
Basidia 40-43 x 9.7-11 µm, 4 sterigmata.

Spores: Angular, 6 to 7-sided;
(8.5) 9.2 - 10.9 (12) × (5.5) 6 - 7.2 (7.6) µm

Q = (1.2) 1.4 - 1.7 (1.9) ; N = 30

Me = 10 × 6.6 µm ; Qe = 1.5.

10.20 7.15
10.59 6.86
10.87 6.70
10.30 7.36
11.33 7.48
10.34 6.80
10.22 6.27
9.87 6.03
9.77 6.65
8.68 7.01
9.62 6.56
9.21 7.12
10.30 6.72
9.53 5.61
10.46 6.82
12.00 6.37
8.55 6.14
9.85 6.74
9.39 6.05
9.54 6.25
9.03 6.44
10.81 6.34
10.05 7.20
9.37 6.37
11.60 6.23
10.49 6.62
9.51 5.49
9.36 6.35
9.62 7.55
10.25 6.10

F000310

Found in a CHEG zone along the banks of a very tiny stream. All four CHEG families were present within ~10ft.

Last photo has a scale bar that is calibrated at the depth of the numbered tag. That photo has been color edited so that the fruiting bodies can be better seen.

Same as obs 267941, but definitely not in moss.

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Originally posted to Mushroom Observer on Jan. 23, 2017.

No smell. Maybe the same as obs 269111.

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Originally posted to Mushroom Observer on Feb. 5, 2017.

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ITS sequence from Brandon Matheny.

Microscopy by @rudydiaz:
FDS-CA-04027
Polyporaceae

Cellular features:
Cystidia absent; clamp connections absent. Hyphae monomitic, encrusted, 3 - 5 µm thick; cell wall 1 µm thick.

Spores:
Allantoid, biguttulate;
(4.6) 4.9 - 6.2 (6.5) × (1.3) 1.4 - 2.1 (2.3) µm
Q = (2.5) 2.7 - 3.9 (4.2) ; N = 30
Me = 5.5 × 1.7 µm ; Qe = 3.3.

5.31 1.61
6.21 1.61
5.59 1.86
5.23 1.52
5.72 2.11
4.88 1.65
5.66 1.44
5.83 2.00
5.61 1.54
5.64 1.71
5.51 1.94
6.03 2.25
5.79 1.37
6.49 1.90
5.56 1.53
5.76 1.92
4.63 1.84
6.27 2.26
5.49 2.08
5.32 1.71
6.23 1.51
4.61 1.62
5.08 1.53
5.21 1.61
4.89 1.62
5.64 1.57
4.56 1.29
5.29 1.44
5.30 1.39
5.23 1.61

Seems like it should be super easy to ID, but I have no clue. Same as obs 267955.

The purplish tint is accurate. Solid feel to them. Gills dried greyish.

Medium-strength pleasant cucumber smell.

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Originally posted to Mushroom Observer on Jan. 23, 2017.

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ITS sequence from Brandon Matheny and Django Grootmyers.