Lichenomphalia umbellifera (L.) Redhead, Lutzoni, Moncalvo & Vilgalys

Mycotaxon, 83: 38, 2002. Basionym: Agaricus umbelliferus L. - Sp. Pl., 2: 1175, 1753.
Synonyms: Agaricus chrysoleucus Pers.; Agaricus pseudoandrosaceus Bull.; Agaricus umbelliferus var. myochrous Fr.; Botrydina botryoides (L.) Redhead & Kuyper; Botrydina vulgaris Bréb. p.p.; Clitocybe umbellifera (L.) H.E. Bigelow; Gerronema ericetorum (Pers.) Singer; Lepra botryoides (L.) F.H. Wigg.; Omphalia pseudoandrosacea (Bull.) Sacc.; Omphalia umbellifera (L.) P. Kumm.; Omphalia umbellifera f. albida J.E. Lange; Omphalia umbellifera var. chrysoleuca (Pers.) Rea; Omphalia umbellifera var. myochroa (Fr.) Massee; Omphalina ericetorum (Pers.) M. Lange; Omphalina fulvopallens P.D. Orton; Omphalina pseudoandrosacea (Bull.) M.M. Moser non auct.; Omphalina umbellifera (L.) Quél.
Distribution: N - Frl (Tretiach & Hafellner 2000), Ven (Onofri & al. 2013), TAA, Lomb (Onofri & al. 2013), Piem (Onofri & al. 2013), Emil (Passerini 1871, Onofri & al. 2013, Fariselli & al. 2020), Lig (Zotti & Orsino 2001, Onofri & al. 2013). C - Tosc (Barluzzi & al. 1996, Salerni & al. 1998, Perini & al. 2002, Onofri & al. 2013), Sar (Onofri & al. 2013). S - Cal (Puntillo 1996).
Description: Thallus crustose, episubstratic, forming a soft, gelatinous (when wet), dark green film made of minute spherical granules consisting of clumps of algal cells incompletely surrounded by thick-walled hyphae. Clamp connections absent in all hyphae. Basidiocarps not lichenized, with a 0.5-2.5 cm wide, at first convex, then flattened to omphaloid, pale brown-yellowish to yellow-ochraceous cap tinged brown-red towards the center (rarely fading to almost white), with sinuous, striate margins, thick, whitish to cream-coloured, broadly decurrent lamellae, and a terete, often curved, 1-3 cm high, 1-3 mm thick, brown-reddish stipe tinged lilac near apex and yellow-ochraceous towards the base, often minutely white-tomentose in upper part. Basidia clavate, with 1-4 sterigmata. Basidiospores 1-celled, hyaline, ellipsoid, 6.5-10(-12) x 5-8 µm, thin-walled, I-. Photobiont chlorococcoid. Spot tests: all negative. Chemistry: thallus without lichen substances.
Note: on acid organic soil and rotting wood, ecologically similar to L. hudsoniana, but rarer above treeline.
Growth form: Crustose
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: extremely rare
Subalpine belt: very rare
Oromediterranean belt: absent
Montane belt: very rare
Submediterranean belt: extremely rare
Padanian area: absent
Humid submediterranean belt: extremely rare
Humid mediterranean belt: absent
Dry mediterranean belt: absent

pH of the substrata:

12345

Solar irradiation:

12345

Aridity:

12345

Eutrophication:

12345

Poleotolerance:

0123

Altitudinal distribution:

123456


Predictive model
Herbarium samples

Jason Hollinger – CC BY-SA 2.0
Image originally posted to Flickr.com, uploaded to Wikimedfia Commons using Flickr upload bot on 07:58, 31 July 2011 (UTC) by Natr (talk). On that date, it was available under the license indicated.



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (26481)
2002/07/11
lichenized thallus



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (26481)
2002/07/11
lichenized thallus


Helena Rodriguez
Spain, Galicia, Peña Trevinca
06.2019


Helena Rodriguez
Spain, Galicia, Peña Trevinca
06.2019