Abstract
In a recent trip to southern Mexico, Anthoceros subtilis and A. telaganus were recorded for the first time in Mexico and the American continent. Several previous records of A. subtilis were from Asia and one from Africa, and A. telaganus is known only from Indonesia. The new range extension of these two species is reported and the species are described and illustrated.
Mexican populations of A. subtilis are characterized by small brown spores (26–42 μm), similar ornamentation on proximal and distal spore surfaces with papillate to tuberculate projections. Anthoceros telaganus is characterized by larger black spores (32–53 μm) with a smooth strip along the trilete mark on the proximal surface. Molecular genetic sequencing is needed to test whether Asian and American populations of these morphologically similar but geographically disjunct taxa are conspecific.
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Escolástico-Ortíz, D.A. & Juárez-Martínez, C. (2018) Notothylas javanica (Anthocerotophyta: Notothyladaceae): nuevo registro para la brioflora de México. Acta Botanica Mexicana 123: 183–190. http://dx.doi.org/10.21829/abm123.2018.1287
Espinoza-Prieto, B. & Opisso, J. (2020) Anthoceros tristanianus, J.C. Villarreal, J.J. Engel & J. Vána. In: Ellis, L.T., Afonina, O.M., Atwood, J.J., Bednarek-Ochyra, H., Burghardt, M., Dragi?evi?, S., Vuksanovi?, S., Espinoza-Prieto, B., Opisso, J., Goga, M., Ba?kor, M., Graulach, A., Hugonnot, V., Koroleva, N.E., Chandini, V.K., Manju, C.N., Mufeed, B., Natcheva, R., Norhazrina, N., Syazwana, N., Peralta, D.F., Plášek, V., Popov, S. Yu., Porley, R.D., Rimac, A., Alegro, A., Vukovi?, N., Koleti?, N., Šegota, V., Sabovljevi?, M.S., Schäfer-Verwimp, A., Sérgio, C., ?tef?nut, S., Taha, M.A., Abou-Salama, U.Y. & Wolski, G.J. (2020) New national and regional bryophyte records, 62. Journal of Bryology 42 (2): 195–208. https://doi.org/10.1080/03736687.2019.1706311
Fischer, E. (2007) The genera Anthoceros, Phaeoceros and Notothylas (Anthocerotopsida) in Rwanda. Nova Hedwigia, Beiheft 131: 81–89.
Flagmeier, M., Squirrell, J., Woodhead, M., Long, D.G., Bell, N.E., Rusell, J., Powell, W.& Hollingsworth, P.M. (2020) Globally rare oceanic-montane liverworts with disjunct distributions: evidence for long-distance dispersal. Biodiversity and Conservation 29 (11): 3245–3264. https://doi.org/10.1007/s10531-020-02022-5
Fuertes, E. & Manzano, S. (2017) New and interesting records of Argentinian Ricciaceae (Marchantiophyta) and hornworts (Anthocerotophyta). Cryptogamie, Bryologie 38 (2): 1–10. https://doi.org/10.7872/cryb/v38.iss2.2017.213
Garcia, C., Sérgio, C., Villarreal, J.C., Sim-Sim, M. & Lara, F. (2012) The hornworts Dendroceros Nees and Megaceros Camp. in Sao Tomé e Príncipe (Africa, Gulf of Guinea) with the description of Dendroceros paivae sp. nov. Cryptogamie, Bryologie 33 (1): 3–21. https://doi.org/10.7872/cryb.v33.iss1.2012.003
González-Espinosa, M., Meave, J.A., Ramírez-Marcial, N., Toledo-Aceves, T., Lorea-Hernández, F.G. & Ibarra-Manríquez, G. (2012) Los bosques de niebla de México: conservación y restauración de su componente arbóreo. Ecosistemas 21 (1–2): 36–52.
Gottsche, C.M. (1858) Uebersicht und kritische Wurdigung der seit dem Erscheinen der Synopsis Hepaticarum bekannt geworden Leistungen in der Hepaticologie. Botanische Zeitung. Berlin Beilage 16: 1–54.
Gottsche, C.M., Lindenberg, J.B.W. & Nees, C.G. (1846) Synopsis hepaticarum, fasc. 4. Meissner, Hamburg, pp. 465–624.
Gradstein, S.R., Churchill, S.P. & Salazar-Allen, N. (2001) Guide to the bryophytes of tropical America. Memoirs New York Botanical Garden 86: I–VIII, 1–577.
Gradstein, S.R. (2013) Afro-American hepatics revisited. Polish Botanical Journal 58 (1): 149–177. https://doi.org/10.2478/pbj-2013-0016
Gradstein, S.R. & Pócs, T. (2021) Diversity of liverworts and hornworts in Polylepis sericea forests in the Andes of Venezuela. Nova Hedwigia 112 (1–2): 49–68. https://doi.org/10.1127/nova_hedwigia/2021/0612
Hasegawa, J. (1979) Taxonomical studies on Asian Anthocerotae I. Acta Phytotaxonomica et Geobotanica 30: 15–30. https://doi.org/10.18942/bunruichiri.KJ00001078302
Hasegawa, J. (1984) Taxonomical studies on Asian Anthocerotae IV. A revision of the genera Anthoceros, Phaeoceros and Folioceros in Japan. Journal of the Hattori Botanical Laboratory 57: 241–272.
Hasegawa, J. (1993) Taxonomical studies on Asian Anthocerotae V. A short revision of Taiwanese Anthocerotae. Acta Phytotaxonomica et Geobotanica 44 (2): 97–112.
Hasegawa, J. (1998) Taxonomic status of Anthoceros subbrevis Haseg. and taxonomy of its allied taxa. Bryological Research 7 (6): 173–177. https://doi.org/10.24474/bryologicalresearch.7.6_173
Hässel de Menéndez, G. (1986) Leiosporoceros Hässel n. gen. and Leiosporocerotaceae Hässel n. fam. of Anthocerotopsida. Journal of Bryology 14 (2): 255–259.
Hässel de Menéndez, G. (1988) A proposal for a new classification of the genera within the Anthocerotophyta. Journal of the Hattori Botanical Laboratory 64: 71–86.
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