REFERENCES
- Bartram, E. B. (1949). Mosses of Guatemala. Fieldiana (Bot.) 25, 1–442.
- Eddy, A. (1985). A revision of the African Sphagnales. Bull. Br. Mus. Nat. Hist. (Bot.) 12 (3), 77–162.
- Ehrlich, P. R. & Raven, P. H. (1969). Differentiation of populations. Science 165 (3899), 1228–1232.
- Griffin, D. (1984). Studies on Colombian cryptogams XXII. The Breutelia subarcuata complex in Colombia and neighboring areas. Acta Bot. Neerl. 33, 275–282.
- Griffin, D. (1988). New World species of Breutelia with erect-appressed leaf bases. Beih. Hedwigia 90, 357–382.
- Levin, D. A. & Kerster, H. W. (1967). Natural selection for reproductive isolation in Phlox. Evolution 21, 679–687.
- Matteri, C. (1973). El genera Breutelia (Bartramiaceae, Musci) en le region Andino-PatagOnica. Rev. Mus. Arg. Cs. Nat. Bernardino Rivadavia, Bot. 4, 321–360.
- Raven, P. H. (1980). Hybridization and the nature of species in higher plants. Can. Bot. Assoc. Bull. Suppl. 13, 3–10.
- Robinson, H. (1967). Preliminary studies on the bryophytes of Colombia. Bryologist 70, 1–61.
- Vitt, D. H. (1980). The genus Macrocoma II. Geographical variation in the Macrocoma tenue-M. sullivantii species complex. Bryologist 83, 437–450.
- Zander, R. H. (1977). The Tribe Pleuroweisieae (Pottiaceae, Musci) in Middle America. Bryologist 80, 233–269.