ITALIC 8.0

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 isodiametrical 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 various deciduous trees (Populus, Pyrus, Robinia, Salix, Ulmus), mainly along bark furrows; certainly more widespread, also in Northern Italy. The species is most probably a non-lichenised saprobe: 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

Pioneer species

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:

1

2

3

4

5

(info)

Solar irradiation:

1

2

3

4

5

(info)

Aridity:

1

2

3

4

5

(info)

Eutrophication:

1

2

3

4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

1

2

3

4

5

6

(info)

Predictive model

Herbarium samples

Index Fungorum GBIF

Source: Voglmayr H., Aguirre-Hudson M.B., Wagner H.G., Tello S., Jaklitsch W.M. 2019. Lichens or endophytes? The enigmatic genus Leptosillia in the Leptosilliaceae fam. nov. (Xylariales), and Furfurella gen. nov. (Delonicicolaceae). Persoonia, 42: 228–260. - CC BY-NC-ND 3.0

Leptosillia wienkampii. a–d. Perithecia on bark in surface (a–b) and side (c–d) view; note the sulcate structures on the apical papillae (c–d); e–f. asci (f. in Lugol); g. paraphyses; h–t. vital ascospores; u. strongly dextrinoid granular hamathecial exudates in Lugol after KOH pre-treatment; v. pycnidia and conidial drops in culture (CMD, 16 d); w–z, g1. conidiophores, conidiogenous cells and conidia from pycnidia on natural substrate; a1–f1. conidiophores, conidiogenous cells and conidia from pycnidia in culture (CMD, isolation plate, 40 d). All in water, except where noted (a, g, r: WU 40021; b: WU 40018; c, s–t, w–z, g1: WU 40020; d–e, h–p: WU 40017; f, q: WU 40016 (epitype); u: WU 40023; v, a1, e1: CRW3; b1–d1, f1: CRW1). — Scale bars: a–b, v = 200 μm; c–d = 100 μm; e–f, u = 10 μm; g–t, w–g1 = 5 μm

P.L Nimis CC BY-SA 4.0

TSB 30121

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.

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.