Clavascidium lacinulatum (Ach.) M. Prieto

in Prieto & al., Am. J. Bot., 99: 28, 2012. Basionym: Endocarpon hepaticum var. lacinulatum Ach. - Lichenogr. Univ.: 299, 1810.
Synonyms: Catapyrenium lacinulatum (Ach.) Breuss; Dermatocarpon trapeziforme auct. non (J. König) Trevis.; Placidium lacinulatum (Ach.) Breuss
Distribution: N - Ven, TAA. C - Sar. S - Pugl, Cal (Puntillo 1996).
Description: Thallus squamulose, pale to dark brown, dull, non- or very slightly pruinose. Squamules 3-8 mm broad, 0.3-0.5 mm thick, rounded at first, then crenulate, flattened to weakly convex, smooth, with an undulate-crisped edge, scattered to contiguous, rarely overlapping. Lower surface pale brown, sometimes darkening, attached by several. simple to weakly dichotomously branched, robust, 100-300 μm thick, several mm long, pale to brown rhizines, and by colourless, 3-5 μm thick rhizohyphae. Upper and lower cortex paraplectenchymatous, the lower cortex poorly developed, the cells not arranged in vertical rows. Perithecia frequent, laminal, half immersed, globose to broadly pyriform, to 0.65 mm in diam., without involucrellum, the wall colourless to pale brown throughout. Hymenium I+ blue; paraphyses absent, substituted by periphyses. Asci 8-spored, clavate, thin-walled, I-, without a tholus. Ascospores 1-celled, hyaline, ellipsoid, thin-walled, biseriate from the beginning, 12-15(-17) x 5.5-7.5 μm. Pycnidia laminal, immersed, black, to 0.5 mm in diam. Conidia oblong-ellipsoid, 3-4(-5) x 1.3-2 μm. Photobiont chlorococcoid. Spot tests: cortex and medulla K-, C-, KC-, P- UV-. Chemistry: without lichen substances. Note: a mainly Mediterranean-Atlantic to mild-temperate terricolous species found on loess and calciferous ground, most frequent in dry grasslands at relatively low elevations.
Note: a mainly Mediterranean-Atlantic to mild-temperate terricolous species found on loess and calciferous ground, most frequent in dry grasslands at relatively low elevations.
Growth form: Squamulose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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


pH of the substrata:

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5

Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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P.L. Nimis CC BY-SA 04
GZU Herb.Glowacki



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: GZU Herb.Glowacki
2003/04/28



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41278



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: GZU Herb.Glowacki
2003/04/28