Leptosillia wienkampii (J. Lahm ex Hazsl.) Voglmayr & Jaklitsch

in Voglmayr & al., Persoonia, 42: 253, 2019.. Basionym: Leptorhaphis wienkampii J. Lahm ex Hazsl. - Verh. Ver. Nat. Heilk. Pressburg, 5: 12, 1861.
Synonyms: Cresporhaphis wienkampii (Hazsl.) M.B. Aguirre; Liberomyces saliciphilus Pažoutová, M. Kolařík & Kubátová
Distribution: C - Abr (Di Santo & Ravera 2012, Corona & al. 2016). S - Pugl (Nimis & Tretiach 1999), Si (Voglmayr & al. 2019.
Description: Thallus inapparent, not lichenized, developing on the bark of different deciduous trees. Perithecia black, matt, superficial (0.12-)0.17-0.26(-0.32) mm across, smooth to areolate, scattered singly, pyriform, circular from above, with a central apical papilla laterally slightly enlarged by stellate or sulcate structures. Exciple continuous, of a textura angularis, composed of an outer dark brown, 25-40 μm thick layer of thin-walled isodiametric to laterally compressed cells with dark brown walls, and an inner, hyaline to pale brown layer of (sub)hyaline to light brown, slightly smaller cells. Paraphyses hyaline, smooth, thin-walled, septate, rarely branched, 1.3-4 μm thick, embedded in a I- gelatinous matrix; periphyses smooth, thin-walled, unbranched, less than 2 μm wide. Asci 8-spored, cylindrical or clavate, unitunicate, thin-walled, without a distinct apical apparatus. Ascospores 1-celled, hyaline, falcate to lunate, (22-)26-39(-48) x (3-)3.5-4.2(-5) μm, thin-walled, smooth, with broadly rounded ends, multiguttulate. Pycnidia scattered, black, slightly smaller than perithecia. Conidia simple, falcate, hyaline, (5-)5.5-6.2(-7) x (1.4-)1.6-1.9(-2.1) μm, thin-walled, smooth, with narrowly rounded ends, with a few guttules. Photobiont absent. Spot tests: all negative. Chemistry: without lichen substances.
Note: a mainly temperate species found on the rough bark of of various deciduous trees (Populus, Pyrus, Robinia, Salix, and Ulmus), mainly along bark furrows; certainly more widespread, also in northern Italy. The species is most probably not lichenised: photobionts were reported from British material only. It is included in the Italian red list of epiphytic lichens as “Data Deficient” (Nascimbene & al. 2013c).
Growth form: Crustose
Substrata: bark
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: extremely rare
Padanian area: absent
Humid submediterranean belt: extremely rare
Humid mediterranean belt: absent
Dry mediterranean belt: absent

pH of the substrata:

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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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Predictive model
Herbarium samples


P.L Nimis CC BY-SA 4.0
TSB 30121


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 (30121)
2001/12/04


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.


LITERATURE