Udeni Jayalal

The Lichen Genus Parmotrema in South Korea

Abstract Parmotrema A. Massal. is a common lichen genus scattered throughout the Korean Peninsula; however, no detailed taxonomic or revisionary study of this genus has been conducted for nearly two decades. Therefore, this study revised the taxonomy of this genus based on specimens deposited in the lichen herbarium at the Korean Lichen Research Institute and samples were identified using recent literature. In this revisionary study, a total of eighteen species of Parmotrema including eight new records [Parmotrema cetratum (Ach.) Hale, Parmotrema cristiferum (Taylor) Hale, Parmotrema grayanum (Hue) Hale, Parmotrema defectum (Hale) Hale, Parmotrema dilatatum (Vain.) Hale, Parmotrema margaritatum (Hue) Hale, Parmotrema pseudocrinitum (Abbayes) Hale, and Parmotrema subsumptum (Nyl.) Hale] are documented. Detailed descriptions of each species with their morphological, anatomical and chemical characteristics are also given and a key to the known Parmotrema species of the Korean Peninsula is presented.

Eight new lichen species and 88 new records from Sri Lanka

Abstract Preliminary results are presented of a project aiming to explore the lichen biodiversity in Sri Lanka. The following mostly corticolous (one saxicolous) new species are described: Arthonia karunaratnei with dark brown, round apothecia in groups that are surrounded by a bright orange area, with ascospores 2-septate, 9.0–10.5 × 3.5–4.5 μm; Enterographa wijesundarae with sessile, pruinose apothecia with thin margins that are higher than the disc, with ascospores 13–17-septate, 50–60 × 4.5–5.5 μm, without substances; Fellhanera stipitata with convex, brown apothecia, fusiform to clavate, 5–7-septate ascospores of 21–24.5 × 2.0–2.5 μm, and sessile to tubular pycnidia with conidia 4.5–5.5 × 1.5–2.0 μm; Malmidea plicata which is similar to M. vinosa but with folded thallus and smaller ascospores; Phlyctis lueckingii with ca. 0.2–0.3 mm large, grey-pruinose apothecia in dense groups and fusiform 7-septate ascospores of 27–29 × 5.5–6.5 μm; thallus with norstictic acid.; Porina viridipustulata with numerous pustules of ca. 0.2–0.7 mm diam. and ca. 0.1–0.3 mm high and ascospores 3–7-septate, 57–60 × 12–13 μm; Stirtonia isidiata with glossy white thallus with isidia, which are partly globose but mostly irregularly cylindrical, often with some constrictions or branching, usually gnarled and decumbent, generally ca. 0.2–0.3 mm thick and up to ca. 2 mm long; ascigerous areas apothecium-like, sessile; ascus with 1 ascospore, ca. 250 × 150 μm; ascospores hyaline, broadly fusiform 7–9-septate, 210–225 × 105–115 μm.; and Trypetheliopsis hirsuta with black, ear-shaped, pointed, glossy campylidia of ca. 0.4–0.9 mm diam., ca. 0.5–1.2 mm high, at the outside with black bristles. Furthermore, 88 lichen species are newly recorded from Sri Lanka, including 55 species new for the Indian subcontinent. Interestingly, eight of these are first reports from the whole of the Palaeotropics. These species were previously known only from either Costa Rica or the Amazonian and/or Atlantic rain forest of Brazil.

New additions to lichen mycota of the republic of Korea.

Abstract The current study describes seven species that are new to the lichen mycota of South Korea. A taxonomic description of Arthonia excipienda, A. radiata, Arthothelium ruanum, Enterographa leucolyta, Fissurina elaiocarpa, Rinodina oleae, and Thelotrema porinaceum was given and supported by distribution, ecology, and illustrations. Each species was compared with a species showing close resemblance.

Leiorreuma exaltatum and Trapelia coarctata, New to Korean Lichen Flora

Abstract The present account briefly describes two crustose lichen species new to South Korea. Detailed taxonomic descriptions of Leiorreuma exaltatum and Trapelia coarctata, supported by distribution, ecology and illustrations, are provided. Both species were collected from warm-temperate, humid forests of Jeju Island.

New species and new records in the family Graphidaceae (Ascomycota: Ostropales ) from Vietnam

Acanthothecis salazinica and Diorygma archeri are described from Vietnam. The former is characterized by having a leprose thallus, creamish to whitish, entire, epruinose labia, a slit-like disc, a hyaline to brown, entire proper exciple, warty periphysoids, 8-spored asci, and 28–30loculate, hyaline, I-ascospores, 70–120 7–14 mm in size. The latter has a greenish grey thallus, a poorly developed, hyaline to pale or brownish proper exciple, 1-spored asci, hyaline, muriform ascospores, and produces protocetraric acid. Acanthothecis corcovadensis, Diorygma erythrellum, D. junghuhnii, D. macgregorii, Platygramme platyloma, Pliariona montagnei and Thecaria quassiicola are recorded for the first time from the country.

A New Species of Graphis and New Lichen Records from Vietnam, Including a Second Worldwide Report of Sarcographina cyclospora

Abstract Graphis upretii is a new lichen species discovered in Vietnam. The species is characterized by a loosely corticate, rough, whitish grey to greyish green thallus, elongate and irregularly branched lirellae with an apically thin complete thalline margin (negrosina morph), laterally carbonized, entire proper exciple, clear hymenium, hyaline, 16~20 transversely locular ascospores, and about 50~95 × 10~15 μm in size. In addition, members of the taxon produce norstictic and stictic acids. Currently, the lichen flora of Vietnam include Arthonia radiata, Brigantiaea tricolor, Coenogonium implexum, Dirina paradoxa, Herpothallon sipmanii, Pertusaria pertusa, and Sarcographina cyclospora.

Contributions to the foliicolous lichens flora of South Korea.

Abstract South Korea is covered primarily by temperate vegetation; therefore, foliicolous lichens may not be expected to play an important role in its lichen flora. However, this study describes four foliicolous lichen species, Strigula concreta, S. macrocarpa, S. melanobapha, and S. subelegans, which are new to South Korea. These findings will lead to further research on foliicolous lichens and provide a better understanding of their distribution within the East Asian region. This is the first detailed report on foliicolous lichens and their distribution in South Korea.

New Records of Lichen Genus Thelotrema Ach. (Thelotremoid Graphidaceae) from South Korea

This study illustrates the status of thelotremoid Graphidaceae in South Korea. The taxonomy and systematics of thelotremoid lichens in the country have recently advanced greatly. Following the earlier known taxa from the group, four new records of the genus Thelotrema are reported and described briefly. An artificial key for all known species under thelotremoid group of Graphidaceae from South Korea is also provided.

Three New Records of Lichen Genera Opegrapha and Phaeographis from the Republic of Korea

This paper provides a description of Opegrapha herbarum, Opegrapha viridis and Phaeographis subdividens, all newly identified in the Republic of Korea. The characteristic features of O. herbarum include Varia-type asci, Subelevata-type ascospores, a lack of secondary metabolites and a saxicolous habitat. O. viridis possesses Calcarea-type asci, Vulgata-type ascospores and no chemicals in the thallus. P. subdividens is recognizable by its curved to sinuous lirellae, divergent labia, a brown and uniformly thick proper exciple which is open at its base, 3~4-septate ascospores, and lack of secondary metabolites. All three taxa are now reported to exist on Bogil Island in the Republic of Korea.

The Lichen Genus Polychidium New to South Korea

The lichen species Polychidium muscicola was found in South Korea for the first time and this is the first record of the genus Polychidium from the Korean peninsula. This species is characterized by a dichotomously branched minute thallus with clustered cells of Nostoc as the photobiont. A detailed description and illustrations of this species are provided.