Isoetes longissima subsp. perralderiana

Taxonavigation

Taxonavigation: Isoetales
Superregnum: Eukaryota Regnum: Plantae Divisio: Tracheophyta Divisio: Lycopodiophyta Classis: Isoetopsida Ordo: Isoetales

Isoetes longissima subsp. perralderiana (Milde) Troìa & Greuter, Willdenowia 44(2): 288. 2014.

Basionym
- Isoetes perralderiana Durieu & Letourn. ex Milde, Fil. Eur. 282. 1867.
  - Typus: [Algeria]. Sub aqua crescens in stagnulo aquis a fonte Aïn Sumta fluentibus semper replete, infra fauces Akfadou, ad occidentem Urbis Bougie Kabyliae orientalis, circiter ad 1250 m. alt., 1 Aug 1861, E. Cosson s.n. (Holotypus: B 20 0108215 [specimen b ]; isotypes: B 20 0108215 a & 20 0108214, BM 001176369, FI , G 00349116 & 00349117, GOET 008812, P 00466543 & 01268221, W 0000512).
- Isoetes perralderiana Durieu & Letourn. in Kralik, Pl. Alg. Exsicc. 157. 1862. nom. inval.

Homotypic
- Calamaria perralderiana (Durieu & Letourn. ex Milde) Kuntze, Rev. Gen. Pl. 2: 828. 1891.
- Isoetes velata subsp. perralderiana (Durieu & Letourn. ex Milde) Trab. in Battandier & Trabut, Fl. Alg. & Tunis. 407. 1905.
- Isoetes velata var. perralderiana (Durieu & Letourn. ex Milde) N.Pfeiff., Ann. Missouri Bot. Gard. 9: 121. 1922.

Different from Isoetes longissima, but with affinity to Isoetes tiguliana (Troia & Rouhan 2018: 1001)

Native distribution areas:
Continental: Africa Regional: Northern Africa Algeria References: Brummitt, R.K. 2001. TDGW – World Geographical Scheme for Recording Plant Distributions, 2^nd Edition

Troìa, A. & Greuter, W. 2014. Isoetes in Raab-Straube, E.v. & Raus, Th. (eds.): Euro+Med-Checklist Notulae, 3 [Notulae ad floram euro-mediterraneam pertinentes 32]. Willdenowia 44: 287–299. DOI: 10.3372/wi.44.44211

Troìa, A., Pereira, J.B.S., Kim, C. & Taylor, W.C. 2016. The genus Isoetes (Isoetaceae): a provisional checklist of the accepted and unresolved taxa. Phytotaxa 277(2): 101–145. DOI: 10.11646/phytotaxa.277.2.1 ResearchGate Reference page.

Troìa, A. & Rouhan, G.. 2018. Clarifying the nomenclature of some Euro-Mediterranean quillworts (Isoetes, Isoetaceae): Indicator species and species of conservation concern. Taxon 67(5): 996–1004. DOI: 10.12705/675.10 Reference page.
Hassler, M. & Schmitt, B. 2017. World Ferns. Checklist of the Ferns and Lycophytes of the World. Version 7.19 – August 2017. Accessed 15 Sep 2017.

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