Observation 76786: Rickenella fibula (Bull.) Raithelh.

When: 2011-09-17

Collection location: Yosemite National Park, California, USA [Click for map]

Who: Debbie Viess (amanitarita)

Specimen available

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Funga Nordica?
By: Douglas Smith (douglas)
2011-09-21 10:00:00 PDT (-0700)

Darvin – this is strange, you don’t know about Funga Nordica? I think I’ve been siting it for many if not most of my European obs. over the past two years.

Looking over that link there Irene I see a book on Lactarius I didn’t know about, I’d like to be able to see a copy of that one.

Also if the difference is really on the color of bright orange to pale beige, what am I to make of this photo:


Which is all samples from the same patch of moss up in Mendocino.

Funga Nordica
By: Irene Andersson (irenea)
2011-09-21 05:12:15 PDT (-0700)

was published a 2008, as a new “Nordic Macromycetes”, with big improvements (no species “not included in the key”, and much better descriptions), but also much heavier (2.2 kilo) – available on CD too.
Editors are Knudsen & Vesterholt. The danes are selling it here:

Here’s an example :-)

2. Cap bright orange, yellow or reddish brown. Cap 3-15(-20) mm, convex, low convex with papilla to umbilicate, with straight, undulating or crisped margin, hygrophanous, translucently striate halfway to centre, dry, dull, minutely pubescent (lens), centre deeply coloured, paler towards margin and between the striae; gills arcuate-decurrent, distant, sometimes forked, slightly intervenose, with minutely pubescent edge, white to pale orange; stem 10-50 × 0.5-1.5(-2) mm, cylindrical, hollow, dry, dull to shiny, minutely pubescent over entire length, base white strigose, orange, pale yellow to hyaline white; flesh thin coloured like surface. Sp (4-)5.5-7(-7.5) x 2-3(-4) μm, long ellipsoid to cylindrical, smooth (fig. 67J), thin-walled; cheilo- and pleurocystidia 30-60 x (4-)6-9(-13) μm, fusiform to narrowly lageniform, often subcapitate, thin-walled, smooth, hyaline; pileocystidia 40-80 × 10-15 μm, similar to cheilocystidia.; caulocystidia 30-100 × 8-15 μm, similar to cheilocystidia, but often slightly thick-walled. Single or in groups in moist moss, in forests, open grassland, heathland and on lake shores; spring to autumn; very common in temp.-arc./alp., occasional in IS; DK (LC), FI (LC), FO, IS, NO (LC, incl. Svb), SE (LC). – A&N 2004:45, FAD 61G, Phil 88a, R&H 264, Ves 177, •.
R. fibula (Bull.: Fr.) Raithelh. (R. aulacomniophila G. Kost)
- Cap beige to yellowish brown at centre, paler beige towards margin. Cap 3-6 mm, convex, low convex to plane with slightly depressed centre, margin decurved to straight, hygrophanous, translucently striate at margin, minutely pubescent; gills arcuate-decurrent, distant, forked, white, straw-coloured to beige; stem 8-40 × 0.5-1 mm, cylindrical, hollow, dry, shiny, smooth or very minutely pubescent, pale beige to almost white. Sp 5.5-9(-10) x 2.5-4 μm, long ellipsoid to cylindrical, smooth, thin-walled; cheilo- and pleurocystidia 25-65 × 7-15 μm, fusiform, lageniform, subcapitate or clavate, thin-walled, hyaline; pileocystidia similar to cheilocystidia; caulocystidia 25-60 × 5-10 μm, cylindrical, lageniform to fusiform, often subcapitate, thin- to slightly thick-walled. With mosses, often Bryum or Philonotis; solitary or in groups in moist mires, especially along brook sepages; summer to autumn; occasional in bore.-arc./alp.; NO (LC). – AAF 3:21, C&D 329, Lud 76.1.
R. mellea (Singer & Clémençon) Lamoure

Antonín and Noordeloos
By: Darvin DeShazer (darv)
2011-09-20 20:14:06 PDT (-0700)

Antonín and Noordeloos have an excellent description if R. mellea, Nortic Macromycetes mentions it, only to say it’s not mentioned (not dealt with) and Flora Agaricina Neerlandica skips it.
What is Funga Nordica? Got an author or pub date to follow a lead?

Antonín, Vladimír and Machiel E. Noordeloos. 2004. A Monograph Of The Genera Hemimycena, Delicatula, Fayodia, Gamundia, Myxomphalia, Resinomycena, Rickenella, and Xeromphalina (Tribus Mycenae sensu Singer, Mycena excluded) In Europe. IHW Verlag, Eching. 279p.

Not much
By: Irene Andersson (irenea)
2011-09-20 08:24:46 PDT (-0700)

- mainly the beige colour and the smaller size of mellea (I just realized that what I have called mellea earlier here is something else).
Macro- and microcharacters are described in Funga Nordica.

what distinguishes the two species, Irene?
By: Debbie Viess (amanitarita)
2011-09-20 07:56:18 PDT (-0700)

Created: 2011-09-19 20:52:25 PDT (-0700)
Last modified: 2013-12-03 10:25:23 PST (-0800)
Viewed: 162 times, last viewed: 2017-06-09 20:01:48 PDT (-0700)
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