Stachylidium Link, Mag. Gesell. naturf. Freunde, Berlin 3(1–2): 15 (1809)
MycoBank number: MB 10053; Index Fungorum number: IF 10053; Facesoffungi number: FoF 13542; 7 morphological species (Species Fungorum 2020), 2 species with sequence data.
Type species – Stachylidium bicolor Link
Notes – Stachylidium was introduced by Link (1809) without assigning a type specimen. Stachylidium bicolor was recognized as the type specimen (Hughes 1951b, Ellis 1971, Matsushima 1971, Barnett & Hunter 1972, von Arx 1981b, Dewi 2006). The lectotype of the S. bicolor was designated by Hughes (1951b) and Gams (2017) based on the specimen under the name and synonym of S. bicolor (Hughes 1958, Giraldo & Crous 2019). However, the lectotype designation was controversial (Fries 1832, Giraldo & Crous 2019). Based on specimen examination from B and L, Giraldo & Crous (2019) proposed the specimen with code B700016303 from B to be the most suitable lectotype. The genus is characterized by septate, verticillate conidiophores which are pale brown to brown at the base, sometimes pale to hyaline towards the apex, and roughened, singly or in groups, sometimes forming lax synnemata. Conidiogenous cells are enteroblastic, monophialidic, in whorls, terminal, lateral, cylindrical, ellipsoidal, hyaline or pale brown. Conidia are ellipsoidal or cylindrical, 1-celled and pale brown to brown.
Species
Stachylidium bicolor