Английская Википедия:Bacidina sorediata
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Bacidina sorediata is a species of foliicolous (leaf-dwelling) lichen in the family Ramalinaceae.[1] Found in the Seychelles, it was described as new to science in 2011. It is characterized by its distinct sorediate thallus and pale yellow to orange apothecia.
Taxonomy
Bacidina sorediata was first scientifically described by lichenologists Mark Seaward and Robert Lücking as a new species in 2011. The species name sorediata is derived from the sorediate thallus, which is an unusual feature in the genus.[2] The type specimen was found on Mahé island in the Seychelles on a path to Le Niol Road at an elevation of Шаблон:Convert in January 1974.[2]
Description
The Bacidina sorediata lichen has a foliicolous (leaf-dwelling) thallus, measuring Шаблон:Convert across and 15–20 μm thick. The thallus appears Шаблон:Lichengloss due to the presence of minute, Шаблон:Lichengloss, granulose to microsquamulose patches. The lichen has a pale olive-green colour with yellowish-white soredia, which are initially separate but may become Шаблон:Lichengloss.[2] Although the thallus granules are referred to as "soredia" in this publication, other researchers have called them Шаблон:Lichengloss, and the inconsistent usage of the terminology has caused confusion in the literature.[3]
The Шаблон:Lichengloss, or photosynthetic partner, in Bacidina sorediata is a Шаблон:Lichengloss alga with cells ranging from 5–10 μm in diameter. The apothecia, or reproductive structures, are rounded and range in size from 0.25–0.5 mm in diameter, with a pale yellow to orange-yellow colour. The ascospores, or spores produced in the asci, are Шаблон:Lichengloss to very narrowly clavate and 3-septate, measuring 25 35 by 1.2–1.7 μm.[2]
Bacidina sorediata is distinct from other similar species in the genus due to the combination of a microsquamulose thallus with discrete, differently colored soralia. No secondary chemical substances have been detected in this species.[2]
Similar species
The genus Bacidina includes crustose lichens that typically have a granulose to microsquamulose thallus and pale yellow to orange apothecia. Bacidina sorediata shares features with other common foliicolous species such as B. apiahica, B. defecta, and B. scutellifera. However, Bacidina sorediataШаблон:'s unique combination of a distinctly microsquamulose thallus and soralia sets it apart from these other species.[2]
Habitat and distribution
Bacidina sorediata is known from a rich collection of specimens found in the Seychelles, an archipelago in the Indian Ocean. The specific habitat preferences of this lichen species are yet to be determined.[2]
References
- Английская Википедия
- Bacidina
- Lichen species
- Lichens described in 2011
- Lichens of the Western Indian Ocean
- Taxa named by Robert Lücking
- Taxa named by Mark Seaward
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