Flora10(2,Beil.): 37. 1827 ,
North America, Central America (Honduras), South America (Brazil, Colombia), Europe, Asia, Australia.
Species 9 (2 in the flora).
Brachydontium is a genus of tiny, brownish plants of acidic rocks with striate capsules and peristomes ranging from well developed to completely absent. The species in the flora are olive green to brownish, stems ca. 0.6–2 mm; leaves 0.5–2.5 mm, erect, in ± two apparent rows, lanceolate-subulate, obtuse, leaf margins nearly entire, costa filling the subula; and the columella is not developed. They grow sympatrically on Mt..