Fungi Imperfecti, Hyphomcetes.Coloniae effusae. atrae vel atrobrunneae. Mycelium immersurn et superficiale. Conidiophora erecta, simplicia. brunnea, septata. cellula conidiogena singula, subcylindrica vet obpyriformi Yet clavata terminata. Paries externus cellulae conidiogenae brunneus et disruptus in apicem, strophic, Parvo marginis fimbriatis formato: paries internus hyalinus, crassus, paulo vet fortiter inflatus, conidia gerens, dein aliquando in proliferationem sterilem hyalinam, subulatam, septatam extensa. Conidia blastica, successiva, ellipsoidea, 3-septata, crasso-tunicata, brunnea.

The form genus Exserticlava is somewhat similar to Blastophora Matsushima (1971, 1975). In the type species B. truncatum, however, the conidiogenous proliferation at the apex of the conidiophore was described as thin-walled and the conidia are narrow, cylindrical with a truncate base, hyaline, and obscurely 2-septate