Camarosporium Schulzer, Verh. K.K. Zool.-Bot. Ges. Wien 17: 717. 1870.
Description and illustration: Crous & Groenewald (2017).
Type species: Camarosporium quaternatum (Hazsl.) Schulzer.
Notes: Camarosporium morphologically resembles genera such as Camarographium, Camarosporiopsis, Camarosporula, Dichomera, Didymellocamarosporium, Hazslinszkyomyces, Libertasomyces, Magnicamarosporium, Melanocamarosporium, Melnikia, Murilentithecium, Neocamarosporium, Paracamarosporium, Phragmocamarosporium, Pseudocamarosporium, Pseudohendersonia, Suttonomyces and Xenocamarosporium in conidial shape and septation. However, these taxa are phylogenetically distinct and have subtle but specific morphological differences (Sutton 1980, Butin 1993, Crous et al. 2011, 2013, 2014b, 2015, Wijayawardene et al. 2014a, 2014b, 2014c, 2015, 2016, Tanaka et al. 2015, Tian et al. 2015, Crous & Groenewald 2017).
Camarosporium quaternatum was introduced by Schulzer (1870) as the type species of Camarosporium. Schulzer (1870) did not provide any illustrations for Camarosporium quaternatum in his article and mentioned it is completely similar to Clinterium lycii, described in Hazslinszky (1865). The microfungal collections of F.A. Hazslinszky von Hazslin are preserved in the Hungarian Natural History Museum (BP), but the type of Cm. quaternatum has been lost. Therefore, in a recent study Crous & Groenewald (2017) designated the original illustrations as lectotypes, to facilitate epitypification.