1. Family: Selaginellaceae Willk.
    1. Genus: Selaginella P.Beauv.
      1. Selaginella mazaruniensis Jenman

        This species is accepted, and its native range is Guyana.


    de Araújo Góes-Neto, L.A. et al. 2017. Selaginella (Selaginellaceae) from Brazil: a new species, new records and lectotype designation. Kew Bulletin 72:40. DOI 10.1007/S12225-017-9714-5

    Type: Guyana, Demerara [Essequi- bo],MazaruniRiver,Dec. 1896, Jenmans.n. (lectotypeNY [NY 00029566]!, here designated; isolectotypes B [B 20 0123095-p.p.]-fragment, image!, BM [BM 000936511]- fragment, image!, NY [NY 00029567]!).
    Guyana and Brazil (Amazonas).
    Terrestrial in forests in montane areas.
    Data Deficient (DD) within IUCN (2012) guidelines.
    Selaginella mazaruniensis is characterised by its erect stems, lateral microphylls with entire margins, dorsal microphylls each with outer base shortly auriculate, and an acute to acuminate apex. The megaspore surfaces are irregularly reticulate with spinulose micro-sculpture; the microspore surfaces are covered with irregularly spaced and sized verrucae, covered with dense spinules. Selaginella mazaruniensisresembles S. amazonica Spring chiefly by its erect habit and dorsal microphylls, each with a short auricle in its outer base. It differs from S. amazonica by its lateral microphylls oblong-lanceolate (vs ovate-oblong to ovate-deltate) with acroscopic margin entire (vs serrate to denticulate); axillary microphylls oblong-lanceolate (vs ovate-deltate) and with entire (vs serrate to denticulate) margins.

    Selaginella mazaruniensis was described with no collection number indicated. Eighty-four years later, Alston et al. (1981) corrected the spelling of the epithet to “mazaruniensis”, indicating a specimen from NY as holotype and a specimen from BM as isotype (see McNeill et al. 2012, Art. 7.10; Prado et al. 2015). However, in NY, two specimens agree with the protologue. On neither of these sheets is there mention that they are part of the same collection (e.g. “1of2” and “2of2”), and it is not possible to determine if these were collected at the same time and place (see McNeill et al. 2012, Art. 8.1, 8.2, and 8.3). Additionally, the specimen from BM closely corre­sponds to a photograph taken from a NY specimen [NY 00029566], with a little fragment of a branch. Therefore, we clarify the status of these specimens by formally designating them as lectotype and isolectotype. As the NY specimens are well preserved, representative of the species, and in accordance with the protologue, we chose to typify S. mazaruniensis using the sheet NY 00029566.



    Selaginella mazaruniensis Jenman appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jenman, G.S. [7221], Guyana K000589266

    First published in Gard. Chron., ser. 3, 22: 210 (1897)

    Accepted by

    • Roskov Y. & al. (eds.) (2018). World Ferns: Checklist of Ferns and Lycophytes of the World Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.


    Kew Bulletin
    • Assis, E. L. M. (2016). Estudos taxonomicos em Selaginella P. Beauv. subgenero Stachygynandrum (P. Beauv.) Baker no Brasil. Ph.D. thesis. Instituto de Pesquisas Jardim Botanico do Rio de Janeiro, Rio de Janeiro.
    • Goes-Neto, L. A. A. (2016). Estudos taxonomicos em Selaginellaceae Willk. (Lycopodiophyta) no Brasil. Ph.D. thesis. Universidade Federal de Minas Gerais, Belo Horizonte.
    • Funk et al 2007
    • Funk, V., Hollowell, T., Berry, P., Kellooff, C. & Alexander, S. N. (2007). Checklist of the plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana). Contr. U.S. Natl. Herb. 55: 1 - 584.
    • Buck, W. R. (1986). A new species of Selaginella section Articulatae (Selaginellaceae) from Paraguay. Brittonia 38: 45 - 47.
    • Alston et al.(1981)
    • Alston, A. H. G., Jermy, A. C. & Rankin, J. M. (1981). The genus Selaginella in tropical South America. Bull. Brit. Mus. (Nat. Hist.) Bot. 9: 233 - 330.
    • Jenman 1909:404
    • Jenman 1897:210
    • Baker, J. G.  (1887). Handbook of the fern-allies: a synopsis of the genera and species of the natural orders. George Bell & Sons, London.
    • Baker, J. G. (1886). Ferns. In: E. F. Thurn (ed.), Notes on the plants observed during the Roraima Expedition of 1884. Timehri, Vol5. The Royal Agricultural & Commer­cial Society of British Guiana, Demerara & London.


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