Groutiella apiculata (Hook.) H. A. Crum & Steere, Bryologist 53: 146. 1950. Orthotrichum apiculatum Hook., Musci Exot. 1: 45. 1818. Type: Mexico. Prope Xalapam, Humboldt & Bonpland.
Orthotrichum mucronifolium Hook. & Grev., Edinburgh J. Sci. 1: 116. 1824. Groutiella mucronifolia (Hook. & Grev.) H. A. Crum & Steere, Bryologist 53: 146. 1950. Type: St. Vincent, Guilding s.n. (NY).
Macromitrium homaloblastum Herzog, Hedwigia 57: 247. 1916. Syn. nov. Type: Bolivia. Am Bäumen im Wald zwischen Puerto Suarez und Muttum [= Mutun] (Ostbolivia), April 1907, Herzog 112 (JE!).