Biology:Cladonia trassii

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Short description: Species of lichen

Cladonia trassii
Scientific classification edit
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Cladoniaceae
Genus: Cladonia
Species:
C. trassii
Binomial name
Cladonia trassii
Ahti (1998)

Cladonia trassii is a species of fruticose lichen in the family Cladoniaceae.[1] It has a circumpolar distribution and is found in arctic/alpine and subarctic habitats.

Taxonomy

Cladonia trassii was formally described as a new species in 1998 by Finnish lichenologist Teuvo Ahti. In a revision of the arctic lichen Cladonia stricta, he divided it into three distinct species based on morphological and chemical differences between them; Cladonia trassii was one of the new species, in addition to Cladonia uliginosa and C. stricta. The species epithet trassii honours Estonian lichenologist Hans Trass.[2]

The type specimen of Cladonia trassii was collected on Mt. Patjanen (Gällivare, Lapland, Sweden) at an elevation of 550 m (1,800 ft). Ahti notes that the taxon is a new name for a species that Edvard Vainio originally called Cladonia cerasphora in 1894 and 1922 publications.[2]

Description

The thallus of Cladonia trassii comprises a primary thallus made of squamules measuring 1–5 mm wide, and a secondary thallus consisting of variably shaped podetia that are 3–8 cm (1.2–3.1 in) tall, and 1–3 mm (0.04–0.12 in) thick. The ascospores are spindle-shaped (fusiform) and measure 12–14 by 2.5–3 um.[2]

The lichen product that occur in Cladonia trassii are atranorin and fumarprotocetraric acid as major metabolites, and minor amounts of protocetraric acid and confumarprotocetraric acid. The expected results of standard chemical spot tests are PD+ (red), and K+ (yellow).[2]

Habitat and distribution

Cladonia trassii is found in arctic/alpine and subarctic habitats. It has a circumpolar distribution in the northern hemisphere. Documented collection locations include Khabarovsk Krai, Russian Far East; Alaska, United States; Northwest Territories and Québec, Canada; and Greenland.[2]

See also

References

  1. "Cladonia trassii Ahti". Species 2000: Naturalis, Leiden, the Netherlands. https://www.catalogueoflife.org/data/taxon/VPMZ. 
  2. 2.0 2.1 2.2 2.3 2.4 Ahti, Teuvo (1998). "A revision of Cladonia stricta". Folia Cryptogamica Estonica 32: 5–8. 

Wikidata ☰ Q21248428 entry