Reinstatement of the Patagonian moss Ulota glabella Mitt. (Bryophyta, Orthotrichaceae)

Keywords: epitype, South America, Ulota eremitensis, Ulota fuegiana, Ulota macrocalycina


In 1842, J.D. Hooker collected a number of mosses on Hermite Island (Cape Horn region). From one of those gatherings, Hooker 141, four species of Ulota have been described: U. luteola, U. fuegiana, U. glabella, and U. eremitensis. The first two species are widely accepted, whereas the identity of the latter two has been recently discussed, and the names are now synonymized under U. fuegiana, the more widely distributed species in the Tierra del Fuego archipelago. Our studies, based on recent collections of Orthotrichaceae from Patagonia, show that specimens different from those of U. fuegiana and agreeing with the protologues of both U. glabella and U. eremitensis are common in Patagonia. Comparisons with type material of all four names demonstrate that the type for U. glabella is in such bad condition that it cannot be used, and an epitype should be selected. In this paper, we comment on the whereabouts of the collection Hooker 141 and the species described from it, discuss the distinct identity of U. glabella and its relationship with U. eremitensis as well as its differentiation from other species, present a diagnostic description of U. glabella and, finally, select an epitype to fix the application of this name.


Bescherelle É. 1889. II. – Mousses. In: Mission Scientifique du Cap Horn 1882–1883, Vol. 5 (Botanique): 253–312. Gauthier-Villars, Paris.

Caparrós R., Garilleti R., Price M.J., Mazimpaka V. & Lara F. 2016. Tackling a long-standing problem: Typification of Orthotrichum crispum, Ulota crispula and Ulota intermedia (Bryopsida: Orthotrichaceae). Taxon 65 (4): 862–866.

Caparrós R., Garilleti R. & Lara F. 2014. Ulota D.Mohr. In: Guerra J., Cano M.J. & Brugués M. (eds) Flora Briofítica Ibérica, Vol. V. Orthotrichales: Orthotrichaceae; Hedwigiales: Hedwigiaceae; Leucodontales: Fontinalaceae, Climaciaceae, Anomodontaceae, Cryphaeaceae, Leptodontaceae, Leucodontaceae, Neckeraceae; Hookeriales: Hypopterygiaceae, Hookeriaceae, Leucomiaceae, Pilotrichaceae: 34–50. Universidad de Murcia & Sociedad Española de Briología, Murcia.

Caparrós R., Lara F., Long D.G., Mazimpaka V. & Garilleti R. 2011. Two new species of Ulota (Orthotrichaceae, Bryopsida) with multicellular spores, from the Hengduan Mountains, Southwestern China. Journal of Bryology 33 (3): 210–220.

Garilleti R., Mazimpaka V. & Lara F. 2015. Ulota larrainii (Orthotrichoideae, Orthotrichaceae, Bryophyta) a new species from Chile, with comments on the worldwide diversification of the genus. Phytotaxa 217 (2): 133–144.

Garilleti R., Muñoz-Puelles L., Mazimpaka V. & Lara F. 2016. A new lectotypification of Ulota macrodontia Dusén ex Malta (Orthotrichaceae, Bryophyta). Journal of Bryology 38 (4): 355–359.

Garilleti R., Albertos B., Draper I., Calleja J.A., Mazimpaka V. & Lara F. 2020. Two complex typifications and a new name to unravel Ulota germana sensu Malta non (Mont.) Mitt. (Orthotrichaceae). The Bryologist 123 (2): 163–178.

Hooker J.D. 1847. I. Flora Antarctica. Part II., Botany of Fuegia, the Falklands, Kerguelen’s Land, etc. In: The Botany of the Antarctic voyage of H.M. discovery ships Erebus and Terror in the years 1839-1843 under the command of Captain Sir James Clark Ross, Kt., R.N., F.R.S., &c.: 208–405. Reeve Brothers, London.

Huxley L. 1918. Life and letters of sir Joseph Dalton Hooker O.M., G.C.S.I. Based on materials collected and arranged by Lady Hooker. Volume I. John Murray, London.

Lara F., Draper I., Flagmeier M., Calleja J.A., Mazimpaka V. & Garilleti R. 2020. Let’s make Pulvigera great again: re-circumscription of a misunderstood group of Orthotrichaceae that diversified in North America. Botanical Journal of the Linnean Society 193: 180–206.

Malta N. 1927. Die Ulota-Arten Süd-Amerikas. Acta Horti Botanici Universitatis Latviensis 2 (2–3): 165–208.

Mitten W. 1860. Description of some new species of musci from New Zealand and other parts of the Southern Hemisphere, together with an enumeration of the species collected in Tasmania by William Archer, Esq. Journal of the Proceedings of the Linnean Society. Botany 4: 64–100.

Muñoz-Puelles L., Lara F., Mazimpaka V. & Garilleti R. 2017. Vindication of Ulota pygmaeothecia (Orthotrichaceae, bryophyta). Phytotaxa 317 (3): 161–174.

Natural History Museum. 2020. Data Portal query created at 2020-05-29.

Ross J.C. 1847. A voyage of discovery and research in the Southern and Antarctic regions, during the years 1839-43, Vol. II. John Murray, London.

Thiers B. continuously updated. Index Herbariorum: a global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from [accessed 23 Nov. 2020].

Turland N.J., Wiersema J.H., Barrie F.R., Greuter W., Hawksworth D.L., Herendeen P.S., Knapp S., Kusber W.-H., Li D.-Z., Marhold K., May T.W., McNeill J., Monro A.M., Prado J., Price M.J. & Smith G.F. 2018. International Code of Nomenclature for Algae, Fungi, and Plants (Shenzhen Code) Adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. Koeltz Botanical Books, Glashütten.

Wang Q. & Jia Y. 2016. A taxonomic revision of Ulota Mohr (Orthotrichaceae) in South and Central America. Plant Diversity 38 (2): 65–88.

How to Cite
Garilleti, R., Albertos, B., Draper, I., Calleja, J. A., & Lara, F. (2020). Reinstatement of the Patagonian moss Ulota glabella Mitt. (Bryophyta, Orthotrichaceae). European Journal of Taxonomy, 726(1), 83-101.
Research article