Heterodermia congoensis (Kurok.) Swinscow & Krog

Lichenologist 8, 2: 116 (1976).

Basionym: Anaptychia congoensis Kurok., Beih. Nova Hedwigia 6: 72 (1962).

 

Protologue: Thallus foliaceus, plagas 3-5 cm. latas formans, cinerascens; laciniae subimbricatae, saepe dichotome et partim subdigitatim divisae, prope apices subascendentes, 0.7-1.5 mm. latae, margine saepe leviter dissectae, superne glabrae epruinosaeque, subtus albae vel partim leviter obfuscatae, decorticatae, margine rhizinosae, rhizinis thallo concoloribus vel versus apicesfuscescent-ibus, irregulariter ramosis, 1-3 mm. longis. Laciniae 130-200 µ crassae; cortex superior subirregulariter incrassatus, 50-120 µ crassus, parte exteriore cinerea, ca. 15 µ crassa; stratum gonidiale discontinuum, gonidiis 7-11 µ diametro; stratum medullare ca. 70 µ crassum.
Apothecia superficialia, substipitata, 1-3.5 mm. diametro, margine dentato-crenata vel breviore lacinulata, discis fuscis vel nigro-fuscis, leviter albo-pruinosis sed demum nudis, receptaculis thallo concoloribus epruinosisque; hymenium hyalinum, ca. 160 µ altum, I+ coerulescens; cortex receptaculi sub-aequaliter incrassatus, I-; asci oblongo-clavati, 29-33 x 130-150 µ; sporae brunnescentes, medio levissime constrictae, 17-20 x 36-43 µ, loculis sporo-blastidiis praeditis.

Protologue type data: Holotype: Massif of Ruwenzori, Ituri, Africa, 4000-4500 m., July 1929, H. Humbert (REN).

Type locality: Democratic Republic of the Congo, Provinz Ituri, Massif of Rwenzori [Ruwenzori], 4000-4500 m, July 1929, H. Humbert (REN - holotype).

Type locality coordinates: 0°23'0"N, 29°54'0"E; 0.383333°, 29.9°.

Molecular barcode: Data lacking.

Thallus: Data lacking.

Photobiont: Data lacking.

Chemistry: Reaction: Thallus K+ yellow; med. K+ yellow, C-, KC-, PD- or PD+ pale yellow. Atranorine and zeorine.

Ecology: Data lacking.

Distribution Type: Tropical Africa. Angola, Democratic Republic of the Congo.