Bacidina canariensis Lumbsch & Vezda

Lichenologist 24, 1: 22 (1992).

 

 

Protologue: Thallus epiphyllus, granuloso-leprosus, expansus, sordide ochraceus, goniocystangiis flavoviridis instructus; granula thallorum goniocystis formata. Apothecia pauca, dispersa, orbicularia, 0.25-0.3 mm lata, 0.2 mm alta, basin versus arcte constricta; marginibus paulum disco superantibus, atrofuscis vel fuscis, nitidis; discis planis vel postremo convexis, fuscis. Excipulum modice crassum, superficiem versus paraplectenchymaticum, fuscescens, ceterum plectenchymaticum hyalinumque. Subhymenium 20-30 µm altum, fuscescens. Hymenium 45 µm altum, hyalinum, amyloideum, zona epihymeniali fusca. Paraphyses 1.5 µm crassae, apicibus paulum incrassatis fuscis. Asci octospori. Ascosporae in ascis spiraliter contortae, 35-45 x 1.8-2 µm. Pycnidia non visa.

Protologue type data: Typus: Canary Islands, Tenerife, Anaga Mts, TK 50: 40-39 Sta. Cruz de Tenerife, Las Mercedes, way from Ermita Cruz del Carmen to Cabezo de Zapata, Laurisilva, on leaves, 950 m alt., 30 November 1989, H.T. Lumbsch & E. Mietzsch 7227 (hb. Lumbsch-holotypus; hb. Vezda-isotypus).

Type locality: Spain, Canary Islands, Tenerife, Anaga Mountains, TK 50: 40-39 Sta. Cruz de Tenerife, Las Mercedes, way from Ermita Cruz del Carmen to Cabezo de Zapata, Laurisilva, on leaves, 950 m, 30.11.1989, H. T. Lumbsch & E. Mietzsch 7227 (Lumbsch - holotype; Vezda - isotype).

Type locality coordinates: 28°32'11.54"N, 16°16'8.99"W; 28.536538°, -16.269164°.

ITS barcode: Data lacking.

Description: Lichen. Thallus crustose, epiphyllous, very thin, continuous, c. 2 cm diam., granular leprose, expanded, dull ochraceous, with yellow-green goniocystangia; the thallus granules built of goniocysts. Apothecia small, dispersed, roundish, 0.25-0.3 mm diam., 0.2 mm tall, slightly constricted at the base; margin slightly raised above the disc, blackish brown to brown, glossy; disc plane or later convex, brown. Excipulum relatively thick, up to 85 µm, towards the surface paraplectenchymatous, brownish, otherwise plectenchymatous. Subhymenium 20-30 µm tall, brownish. Hymenium 45 µm tall, hyaline, epihymenium brown. Paraphyses 1.5 µm thick, apices slightly swollen, brown. Asci 8-spores, apical structure belonging to the Lecanora type s.str. Ascospores spirally contorted in asci, acicular, transversely 5-6-septate, when free curved or spirally contorted, 35-45 x 1.8-2 µm. Pycnidia unknown (Lumbsch & Vezda 1992: 22).

Photobiont: Data lacking.

Chemistry: No lichen substances. Unfortunately the type specimen is too small to allow chemical analyses (Lumbsch & Vezda 1992: 24).

Ecology: On the leaves of several plants in the Laurus forest of Tenerife (Lumbsch & Vezda 1992: 24).

Distribution type: Canary Islands: Tenerife, Gomera; Catalonia.

Taxonomy: Data lacking.

Note: When the species was described from Tenerife (Lumbsch & Vezda 1992: 22), it was simultaneously recorded from Gomera. In 2006 it was found in Catalonia (Llop & Gómez-Bolea 2006
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Distribution Database: Distributions

Distribution Database: Discover Life

Picture Database: Tropical Lichens

Molecular Database: Genbank

Synonym Database: Index Fungorum

Synonym Database: Mycobank