[3][4][5] In 2001, a molecular phylogenetic study using rRNA sequence data did not support the separation of Farrowia and Chaetomium.
[6] Widden, in 1986, suggested that Farrowia seminuda and Botryotrichum piluliferum are the teleomorph and anamorph of the same organism based on their preference for coniferous soils and visual indistinguishability.
[7] Perithecia are subglobose (imperfectly spherical), with straight, unbranched lateral and terminal hairs.
[2] The terminal hairs fuse to form a neck-like structure, potentially rudimentary.
Farrowia forms asci which are clavate (club-shaped) and deliquesce before ascospores mature.