Biology:Fissurina capsulata
| Fissurina capsulata | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Graphidales |
| Family: | Graphidaceae |
| Genus: | Fissurina |
| Species: | F. capsulata
|
| Binomial name | |
| Fissurina capsulata Makhija & Adaw. (2007)
| |
Fissurina capsulata is a species of corticolous (bark-dwelling) script lichen in the family Graphidaceae.[1] Found in India, it was formally described as a new species in 2007 by Urmila Makhija and Bharati Adawadkar. The lichen is native to Kodaikanal, Tamil Nadu, where it was first identified near Daisy Bank in 1975.[2]
Description
This lichen has a pale green or dull green thallus, which is uneven and cracked. The ascomata, or fruiting bodies, are [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] in form and range from 0.5 to 2.5 mm in length. These structures can be [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] or branched and are generally the same colour as the thallus. The ascomata are immersed to slightly raised, with acute to subacute ends, and a have narrow to moderately broad [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] that is not [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]].[2]
The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], a protective layer surrounding the fertile, spore-bearing hymenium, is complete and non-striate, with a yellowish-brown colour that converges and is covered by a [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] up to the top. The rounded apical region of this structure features a swollen "puff" that is interspersed with crystals. The hymenium is hyaline and 63–71 μm high. The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] is distinct, thin, and pale, measuring 6–8 μm in height. Fissurina capsulata has simple, long [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] with warty tips, and short to moderately elongate [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] measuring 4–6 μm in length, also with warty tips. Its asci are 8-spored and measure 60–70 by 8–10 μm. The ascospores are hyaline, ellipsoidal, always contain 3 transverse septa, and measure 11–16 by 4–5 μm. They feature a large, conspicuous [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] that is 3–5 μm thick, narrow at one end, and thick at the other end.[2]
The lichen's chemistry reveals that it does not contain any lichen products, and it tests negative on all standard spot tests. Fissurina capsulata shares a similar ascomatal structure with other Fissurina species but is distinguished by the size of its lirellae and unique ascospore features. Notably, it differs from F. subcontexta, F. marginata, F. rufula, and other similar species in various aspects, such as lirellae length, ascospore size, and the presence of different lichen substances.[2]
References
- ↑ "Fissurina capsulata Makhija & Adaw.". Species 2000: Naturalis, Leiden, the Netherlands. https://www.catalogueoflife.org/data/taxon/6J5MQ.
- ↑ 2.0 2.1 2.2 2.3 Makhija, Urmila; Adawadkar, Bharati (2007). "Trans-septate species of Acanthothecis and Fissurina from India". The Lichenologist 39 (2): 165–185. doi:10.1017/s0024282907004756.
Wikidata ☰ Q17387743 entry
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