Porina mammillosa (Th. Fr.) Zahlbr.
Cat. Lich. Univ., 1: 393, 1922. Basionym: Segestria mammillosa Th. Fr. - N. Acta Reg. Soc. Sci. Upsal., ser. 3, 3: 362, 1861.
Synonyms: Porina epigaeoides (Nyl.) A.L. Sm.; Porina furvescens (Nyl.) A.L. Sm.; Porina humicolor (Nyl.) A.L. Sm.; Sagedia declivum Bagl. & Carestia; Sagedia trechalea (Nyl.) Arnold; Verrucaria furvescens Nyl. non Zschacke
Distribution: N - Frl (Tretiach & Hafellner 2000), Piem (Isocrono & al. 2004).
Description: Thallus crustose, episubstratic, greenish grey to dark grey or almost blackish, often tinged brown-purple, continuous, smooth or granular, rather thick. Perithecia black, 0.3-0.5 mm across, globose, partly covered by a thalline layer. Involucrellum thick, dark, with a purple, K+ blue-grey pigment (Sagedia-red), the inner layers pinkish orange (Porina-yellow); exciple pale throughout, yellowish to pale orange; paraphyses simple, filiform, numerous, persistent, c. 1 μm thick; hymenial gel I-, K/I-. Asci 8-spored, clavate-cylindrical, thin-walled, functionally unitunicate, I-, K/I-, the apex truncate and containing a refractive ring which stains with Congo Red. Ascospores 3-septate, hyaline, fusiform, (15-)25-40 x 4-6 μm. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-. Chemistry: thallus without lichen substances.Note: an arctic-alpine, probably circumpolar species found on bryophytes and plant debris over siliceous substrata, near or above treeline.
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: rare
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
Herbarium samples
Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/
Source: Keissler K. von 1938. Pyrenulaceae, Mycoporaceae, Coniocarpineae. In: Rabenhorst G L: Kryptogamen-Flora von Deutschland, Österreich und der Schweiz. 2nd, IX, Die Flechten, Abt. 1, 2. Gebr. Borntraeger, Leipzig, pp. 1-846.
Source: Keissler K. von 1938. Pyrenulaceae, Mycoporaceae, Coniocarpineae. In: Rabenhorst G L: Kryptogamen-Flora von Deutschland, Österreich und der Schweiz. 2nd, IX, Die Flechten, Abt. 1, 2. Gebr. Borntraeger, Leipzig, pp. 1-846.
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (16654)
2001/11/29
Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/
P.L. Nimis CC BY-SA 04
TSB 16656
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: rare
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
| Herbarium samples |
Index Fungorum
GBIF
Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/
Source: Keissler K. von 1938. Pyrenulaceae, Mycoporaceae, Coniocarpineae. In: Rabenhorst G L: Kryptogamen-Flora von Deutschland, Österreich und der Schweiz. 2nd, IX, Die Flechten, Abt. 1, 2. Gebr. Borntraeger, Leipzig, pp. 1-846.
Source: Keissler K. von 1938. Pyrenulaceae, Mycoporaceae, Coniocarpineae. In: Rabenhorst G L: Kryptogamen-Flora von Deutschland, Österreich und der Schweiz. 2nd, IX, Die Flechten, Abt. 1, 2. Gebr. Borntraeger, Leipzig, pp. 1-846.
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (16654)
2001/11/29
Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/
