Vegetation of eel-grass swards on muddy and sandy substrates of the sublittoral of the subtropical Atlantic Ocean and the Mediterranean Sea
Cymodoceion nodosae Den Hartog ex Mucina in Mucina et al. 2016
Cymodoceion nodosae Den Hartog ex Mucina in Mucina et al. 2016
hal03 | The Cymodoceion nodosae (Den Hartog 1976) is invalidly described (ICPN arts. 2b, 8) since the Cymodoceetum nodosae assigned to this alliance (Den Hartog 1976: 254) is a nomen nudum. It also remained invalidly described in Den Hartog (2003) since the ‘Cymodoceetum nodosae Feldmann 1937’ (there is a direct reference to Feldmann 1937 in the references) was also a nomen nudum. Feldmann (1937: 243) presented a description of the 'Association à Cymodocea nodosa', however, no relevé was presented. Costa et al. (2012: 4) selected ‘Cymodoceetum nodosae Feldmann 1937’ explicitly as the ‘typus’ of the ‘Cymodoceion nodosae Den Hartog 1976’, however this validation is ineffective since an invalid association was used for the typification. It appears that Giaccone & Pignatti (1967) published the first valid description of the Cymodoceetum nodosae. Giaccone et al. (1994: 133) selected the type (lectotypus) relevé from Giaccone & Pignatti (1967). Here I validate the Cymodoceion nodosae by designating the validly described Cymodoceetum nodosae Giaccone et Pignatti 1967 as the holotypus (hoc loco) of the alliance. The character-species of the alliance is Cymodocea nodosa. (L. Mucina).