Dianthus caryophyllus var. tenuifolius Moris, Fl. Sardoa 1: 231. 1837. [April 1837]

Domina, Gianniantonio, Astuti, Giovanni, Bacchetta, Gianluigi, Barone, Giulio, Resetnik, Ivana, Terlevic, Ana, Thiebaut, Melanie & Peruzzi, Lorenzo, 2021, Typification of 14 names in the Dianthus virgineus group (Caryophyllaceae), PhytoKeys 187, pp. 1-14 : 1

Dianthus caryophyllus var. tenuifolius Moris, Fl. Sardoa 1: 231. 1837. [April 1837]

Dianthus siculus tenuifolius ≡ D. siculus subsp. tenuifolius (Moris) Arrigoni, Parlatorea 7: 20. 2005.

Dianthus genargenteus = D. genargenteus Bacch., Brullo, Casti & Giusso, Nordic J. Bot. 28(2): 145. 2010. Ind. Loc.: "In sterilibus frequens [Sardinia]".

Type.

(lectotype here designated): Dianthus caryophyllus tenuifolia , prope Belvì, July, inter rupe / Mus. Bot. Horti Taurinensis, Herb. Moris Barbey Cat Sard. N.156, TO!

Note.

Three herbarium sheets are kept in TO, with several individuals each. All three specimens bear labels handwritten by Moris but lack the year of collection. Two of them come from generic localities ("in arenis maritimis" and "in collibus"), while one is from Belvì in the centre of Sardinia (Nuoro). All the specimens are complete and in good condition but refer to different collections: two specimens have been collected in inner localities, whereas another one comes from the coast. Moris reports that the scape bears a single flower and that another taxon ( D. caryophyllus var. tenuifolius f. minor ) grows in arenosis maritimis [sandy coast]. Thus, here we propose the specimen from Belvì as lectotype, despite not being dated, assuming that the herbarium in TO hosts the original material by Moris as already done by Arrigoni (1979), Rizzotto (1989), Escobar García et al. (2010) in other similar cases,

Based on the specimen in TO coming from the coast (referring actually to Dianthus caryophyllus f. minor ), Valsecchi (1985), and then Bacchetta et al. (2010), refer D. caryophyllus var. tenuifolius to D. morisianus Vals. Based on the diagnosis and the lectotype designated here, D. caryophyllus var. tenuifolius does not belong to D. morisianus . The former taxon shows short scapes bearing one or few flowers and epicalyx scales with mucro 0.5-1.5 mm long, while the latter shows longer multiflowered scapes with epicalyx scales with mucro 2.0-3.5 mm long. This interpretation agrees with Arrigoni (2010). According to the lectotype of D. caryophyllus var. tenuifolius , which shows woody stocks contracted with branches, epicalyx scales with an evident mucro, and small calyx, this taxon is a heterotypic synonym of D. genargenteus Bacch., Brullo, Casti & Giusso.