Biology:Nitidochapsa
| Nitidochapsa | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Graphidales |
| Family: | Graphidaceae |
| Genus: | Nitidochapsa Parnmen, Lücking & Lumbsch (2013) |
| Type species | |
| Nitidochapsa leprieurii (Mont.) Parnmen, Lücking & Lumbsch (2013)
| |
| Species | |
|
N. aggregata | |
Nitidochapsa is a genus of lichen-forming fungi in the family Graphidaceae.[1] It has five species of corticolous (bark-dwelling), crustose lichens.
Taxonomy
The genus was circumscribed in 2013 by the lichenologists Sittiporn Parnmen, Robert Lücking, and H. Thorsten Lumbsch. The type species is N. leprieurii, originally described in 1855 from specimens collected in French Guiana, as a member of Sticta.[2]
Description
The thallus of Nitidochapsa is continuous and can have a smooth to uneven surface, characterised by an olive-brown colour. When observed in a cross-section, the thallus of Nitidochapsa has a dense upper cortex composed of tightly packed cells ([[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]) and an irregular [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] that partially lies beneath the bark's outer layer (endoperidermal). This genus typically lacks or rarely forms clusters of calcium oxalate, a common crystalline compound in many lichens.[2]
The apothecia (fruiting bodies) Nitidochapsa are angular-rounded and emerge from the thallus ([[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]). The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] of the apothecia is light brown and covered with a fine white powder (white-[[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]), while the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] around the disc is indistinct. The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] of the apothecia has 5 to 8 recurved [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] that are felty and white. A [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], or central pillar-like structure commonly found in some lichens' apothecia, is absent in this genus.[2]
The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] (tissue surrounding the apothecia) is prosoplectenchymatous and varies in colour from hyaline (translucent) to pale brown. Nitidochapsa also features [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], which are hair-like structures around the apothecial margin. The hymenium, the spore-producing layer, is clear, and the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] (sterile filaments in the hymenium) are unbranched. Each ascus (spore-bearing cell) contains eight [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]. These spores are 3-septate (divided into three compartments by septa), measuring 12–16 by 5–6 μm, oblong in shape, with thickened septa and lens-shaped (lenticular) [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]. The spores are dark brown and turn violet-blue with iodine staining (I+ violet-blue reaction). In terms of chemistry, Nitidochapsa does not produce any secondary metabolites.[2]
Species
(As of January 2024), Species Fungorum (in the Catalogue of Life) accepts five species of Nitidochapsa:[3]
- Nitidochapsa aggregata (Hale) Poengs., Lücking & Lumbsch (2014)[4]
- Nitidochapsa leprieurii (Mont.) Parnmen, Lücking & Lumbsch (2013)[2]
- Nitidochapsa phlyctidea (Vain.) Lücking & Lumbsch (2014)[4]
- Nitidochapsa siamensis Poengs., Lücking & Lumbsch (2014)[4] – Thailand
- Nitidochapsa stictoides (Leight.) Tehler, Lücking & Lumbsch (2014)[4]
References
- ↑ Wijayawardene, N.N.; Hyde, K.D.; Dai, D.Q.; Sánchez-García, M.; Goto, B.T.; Saxena, R.K. et al. (2022). "Outline of Fungi and fungus-like taxa – 2021". Mycosphere 13 (1): 53–453. doi:10.5943/mycosphere/13/1/2. https://www.researchgate.net/publication/358798332.
- ↑ 2.0 2.1 2.2 2.3 2.4 Parnmen, Sittiporn; Cáceres, Marcela E. S.; Lücking, Robert; Lumbsch, H. Thorsten (2013). "Myriochapsa and Nitidochapsa, two new genera in Graphidaceae (Ascomycota: Ostropales) for chroodiscoid species in the Ocellularia clade". The Bryologist 116 (2): 127–133. doi:10.1639/0007-2745-116.2.127.
- ↑ "Nitidochapsa". Species 2000: Naturalis, Leiden, the Netherlands. https://www.catalogueoflife.org/data/taxon/64GB.
- ↑ 4.0 4.1 4.2 4.3 Poengsungnoen, Vasun; Manoch, Leka; Mongkolsuk, Pachara; Boonpragob, Kansri; Parnmen, Sittiporn; LüCking, Robert; Tehler, Anders; Lumbsch, H. Thorsten (2014). "Phylogenetic analysis reveals two morphologically unique new species in the genera Astrochapsa and Nitidochapsa (lichenized Ascomycota: Graphidaceae)". Phytotaxa 189 (1): 268–281. doi:10.11646/phytotaxa.189.1.19.
Wikidata ☰ Q21214863 entry
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