Lecidea leprosolimbata (Arnold) Lettau ex Poelt

Data Set Maintenance: Data set standard item. Data set author(s): Hertel H. (99-01-01). Data set not revised.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Lecidea. Synonyms:-; Lecideaceae Chevall. (1826); Lecanorales.

Type Information: Protologue: Poelt J., Mitt. Bot. München 3: 578 (1960) - Psora atrobrunnea var. leprosolimbata Arnold: Arnold F., Verh. Zool.-Bot. Ges. Wien 39: 264 (1889); type specimen label data: Italy: Prov. Trento, auf der Höhe des Wiesenberges (Vièsena), harte Blöcke von Porphyrbreccie, 23 July 1888, F. Arnold (Arnold, Lich. Exs. 1390: M, lectotype).

Taxonomic Literature: Taxonomic notes: Lecidea leprosolimbata is growing as a youth parasite on Bellemerea candidissima. Although it early gets independent from his host, remnants of Bellemerea very often could be found growing in close contact or very near to the lichen. Lettau G., Feddes Repert. 56: 208 (1954); Poelt J., Mitt. Bot. München 3: 578 (1960); Hertel H., Beih. Nova Hedwigia 24: 115-117 (1967); Hertel H., Herzogia 1: 33 (1968); Kilias H., Hoppea 37: 119 (1978); Clauzade G., Roux C., Bull. Soc. Bot. Centre-Ouest, nouv. ser., num. spec. 7: 458 (1985); Türk R., Wittmann H., Sauteria 3: 227 (1987 - distrib. map for Salzburg, Austria); Andreev M.P., Kudratov I., Novit. Syst. Plamt. Mon Vasc. 26: 103 (1989); Wittmann H., Türk R., Kärntner Nationalpark-Schriften 4: 33 (Klagenfurt 1990) [excellent color-photograph]; Andreev M.P., Kudratov I., Botan. Zhurn. 77: 106 (1992); Türk R., Poelt J., Österr. Akad. Wiss., Biosystematics and Ecology Ser. 3: 63 (1993 - bibliography of Austrian lichens); Hertel H., Biblioth. Lichenol. 58: 162-163 (1995).

Biogeography: Alpine. Continent: Europe (Au, Ga, He, Hs, It) and Australasia.

Ecology: Biotroph (youth parasite; matrix: Bellemerea subcandida); lichenized (larger thalli) or lichenicolous (youth parasite; matrix: Bellemerea subcandida); episubstratic; substrate calciferous. Host or Phorophyte Taxonomy: Bellemerea.

Thallus: Areolate (primarily areolate), subsquamulose, continuous throughout or dispersed along the periphery, continuous in the centre; lobes rounded at the front; separate thallus parts.7-1.8 mm thick. Thallus Size and Differentiation: Large; main branches basally not constricted or basally constricted. Thallus Outline: Margin brighter than disk the thallus centre. Upper Surface: Brown (beige to brown), plane or convex; not sorediate; with thalloconidia thalloconidia.

Upper Cortex: Epicortex present. Medulla: Iodine reaction in Lugol's solution positive.

Ascocarps: Soon sessile, slightly constricted at the base, 10-20 per cm², 1-1.5-(2.7) mm in diam.. Margin: Not flexuose, persistent or excluded, indistinct, 80-150 µm wide, epruinose. Disk: Plane to strongly convex, black, epruinose, without an umbo. Exciple: Hyphae radiating outwards; 3-3.5 µm wide; grey; inspersed with crystals. Epithecium: Apical cells rarely olive, green, or rarely brown, cell pigment reacting with 10% HCl (in H2O), cell pigment HCl+ blue? Hymenium: 45-60 µm high; white; iodine reaction: Lugol’s positive. Subhymenium: 15-30 µm high; white. Hypothecium: Brownish yellow or rarely brown.

Ascospores: Ellipsoid, (6.5)-7.9-8.6-(11) µm long, (3.5)-4-4.6-(5) µm wide; wall not ornamented.

Conidia: (8)-9-13-(14) µm long.

Secondary Metabolites: Present, norstictic acid or stictic acid.

Spot Tests: Medulla: K + red, C –, PD + deep yellow; ascocarp margin (in section): K – or + red, C – disk: C – hypothecium: K – epihymenium: K –.

(report generated 04.Okt.2007)