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Cladonia digitata

From Wikipedia, the free encyclopedia

Cladonia digitata
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Cladoniaceae
Genus: Cladonia
Species:
C. digitata
Binomial name
Cladonia digitata

Cladonia digitata, commonly known as the finger cup lichen,[1] is a cup lichen species in the family Cladoniaceae.

Description

Cladonia digitata is a fruticose lichen found mainly in northern Eurasia and North America. It grows mainly on rotten wood, but also grows in rich soils or living plants.

The primary thallus is composed of large or medium-sized squamules, 2–15 mm. long, involute or somewhat flat and sometimes sorediate at the margin or below. The podetia arise from the surface of the primary thallus, around 10-15mm. long. The lower part is .5–4 mm. in diameter and cylindrical or often incrassate below the cups. Its proliferation is either simple or repeated; The upper part and especially the cups are sorediate and the cavity corticate. The lower part or sometimes the entire podetium is covered with a continuous cortex, without squamules. The cups are medium-sized, 10–15 mm. in diameter and 2–5 mm. high. The margin is commonly somewhat incurved, sub-entire, dentate radiate or proliferate. The ascoma are apothecial, apothecioid or hymenial. The apothecium, reddish in color, is usually medium-sized, or rarely small, .5-5mm. in diameter. They are located at the apices of the branches or rarely on the margin of the cups, are either simple or clustered and either convex or immarginate. The paraphyses are simple or rarely branched, and are somewhat enlarged toward the apex. The asci are cylindrico-clavate The asci are lecanoralean, with a thickened tholus. There are normally 8 ascospores.[2][3]

Biochemistry

Among the secondary metabolites are bellidiflorin, thamnolic acid (which has shown use as an antimicrobial agent), decarboxythamnolic acid and the red pigment rhodocladonic acid.[4][5]

References

  1. ^ "Standardized Common Names for Wild Species in Canada". National General Status Working Group. 2020.
  2. ^ "LIAS light - Item Descriptions".
  3. ^ Fink, Bruce, (1908). Further Notes on Cladonias. XIV. Cladonia digitata, Cladonia deformis and Cladonia bellidiflora. The Bryologist , Mar., 1908, Vol. 11, No. 2 (Mar., 1908), pp. 21-24. https://www.jstor.org/stable/3238248
  4. ^ Cankılıç, Sarıözlü, Canda & Tay. (2017) Screening of antibacterial, antituberculosis and antifungal effects of lichen Usnea florida and its thamnolic acid constituent Biomedical Research (2017) Volume 28, Issue 7
  5. ^ Culberson, Chicita F., (1970), Supplement to "Chemical and Botanical Guide to Lichen Products" The Bryologist Vol. 73, No. 2 (Summer, 1970), pp. 177-377

Links to photos

External links

This page was last edited on 27 September 2022, at 00:54
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