Lacrima Bungartz, Arup & Søchting, gen. nov.
MycoBank number: MB 836938; Index Fungorum number: IF 836938; Facesoffungi number: FoF 13606;
Generic type: Lacrima epiphora (Taylor) Bungartz, Søchting & Arup, ibid.
Diagnosis: Thallus saxicolous, crustose, rimose to areo- late, or poorly developed, often isidiate. Apothecia lecanorine to zeorine, asci clavate, of Teloschistes-type with 8 spores. Ascospores polaribilocular, with wide septum. Molecular data support its isolated position in the sub- family Caloplacoideae.
Chemistry: Chlorinated anthraquinones, mainly fragilin present in the apothecia and in some species also within the thallus.
Etymology: Named for the characteristic ‘tear’-shaped isidia (cylindrical, but slightly tapered at their base), present in some, but not all of the species.
Known distribution: The genus is so far recorded from the Neotropics (Central America and the Galapagos Islands), and in North America from the Sonoran Desert Region.
Species