Affiliation:
1. Islamic Azad University
2. Islamic Azad University, Mashhad
3. Agricultural Research and Education Organization
Abstract
The Khorasan-Razavi Province in northeastern Iran boasts a diverse
lichen flora, fostered by its climatic diversity and extensive calcareous
substrates, which provide an ideal habitat for crustose saxicolous lichens.
However, the distribution of these lichens in this province has remained
inadequately explored. Thus, this study aims to conduct a taxonomic
investigation of crustose saxicolous lichens within this area. Between 2018
and 2019, we employed survey methods to collect 436 rock substrates from 44
locations within the province. Lichen specimens were meticulously examined,
considering their morphological, anatomical, and ecological attributes.
Light microscopy was utilized to scrutinize morphological and anatomical
features, with a specific focus on the thallus and perithecium. Our
findings reveal the first-ever documentation of the species Caloplaca
atroalba (Tuck) Zahlbr. (1930) in Asia. Additionally, we report the
presence of the species Pyrenodesmia micromontana (Frolov, Wilk, and
Vondrák) Hafellner & Türk (2016), Arthonia mediella Nyl. (1859),
Lecania erysibe (Ach.) Mudd (1861), Placopyrenium canellum (Nyl.) Gueidan
& Cl. Roux, Verruculopsis minutum (Hepp.) Krzewicka, and
Involucropyrenium waltheri (Kremp.) Breuss, along with the genus
Involucropyrenium, as new records for the Iranian flora.
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