Senecio paludosus subsp. paludosus

Calvo, Joel, Álvarez, Inés & Aedo, Carlos, 2015, Systematics of Senecio section Crociseris (Compositae, Senecioneae), Phytotaxa 211 (1), pp. 448-450 : 448-450

10a. Senecio paludosus subsp. paludosus

Senecio byzantinus Linnaeus (1753: 871) . Senecio paludosus var. byzantinus (Linnaeus) Nyman (1879: 354) . TYPE: cultivated in Hortus Upsalensis (lectotype, designated by Calvo et al. (2012: 127–128), Herb. S-Linn 348.7, S image!).

Senecio bohemicus Tausch (1828: 253) . Senecio paludosus var. bohemicus (Tausch) Steudel (1841: 563) . Senecio paludosus var. glabratus Koch (1843: 431) , nom. illeg. superfl. ( McNeill et al. 2012, ICN Art. 52.1). Jacobaea kosteleckii Opiz (1852: 54) , nom. illeg. superfl. ( McNeill et al. 2012, ICN Art. 52.1). Senecio paludosus subsp. bohemicus (Tausch) Čelakovský (1871: 242) . TYPE: Czech Republic, Bohemia, Aus Gräben um Liebitz, [50º18'N 14º35'E], I.F. Tausch 815b (lectotype, designated by Holub (1962:33), PR 122710! (right hand specimen); isolectotypes, LE!, PRC 455020 image!, WU!).

Senecio immunis Wallroth (1840: 278) . Senecio paludosus subvar. immunis (Wallroth) Nyman (1879: 354) . TYPE: Germany, Hercynia, C.F.W. Wallroth s.n. (PR?, not found).

Senecio munitus Wallroth (1840: 278) . Senecio paludosus subvar. munitus (Wallroth) Nyman (1879: 353) . TYPE: Germany, Hercynia, C.F.W. Wallroth s.n. (PR?, not found).

Senecio paludosus var. nudiusculus Ledebour (1845: 639) , nom. illeg. ( McNeill et al. 2012, ICN Art. 53.1), non Reichenbach (1831 –1832: 245). TYPE: Latvia or Estonia, “Livonia”, C.F. Ledebour s.n. (lectotype, designated here, LE!).

Senecio paludosus var. vulgaris Ledebour (1845: 640) . TYPE: Latvia, “Curonia”, 1841, E . Lindemann s.n. (lectotype, designated by Marhold et al. (2003: 375), LE!) .

Senecio paludosus var. grandidens Ruprecht (1854: 220) . TYPE: Russia, Pskov Oblast, inter Gdow & Pskow prope Sholtscha, [58ºN 28ºE], 12 July 1853, F . J . Ruprecht s.n. (lectotype, designated here, LE!) .

Senecio paludosus var. tomentosus Evers (1896: 77) , nom. illeg. ( McNeill et al. 2012, ICN Art. 53.1), non Koch (1843: 431). TYPE: Italy, Trentino-Alto Adige, Tridetum, vallis Athesis, inter Mattarello et Aldeno, [45º59'N 11º06'E], 7 June 1895, G. Evers 8991 (lectotype, designated here, GZU-275331 image!).

Senecio paludosus var. subinteger Rouy (1903: 326) . Senecio subinteger Rouy (1903: 326) , nom. nud., pro syn. ( McNeill et al. 2012, ICN Art. 38.1). TYPE: France, Marne, la Vesle á Muizon prés Reims, [49º16'N 3º53'E], 28 July 1872, G. Rouy 344 (lectotype, designated by Marhold et al. (2003: 376), LY image!).

Senecio paludosus var. procopiani Hormuzaki (1911: 275) . 1911. TYPE: Romania, Bukovina , Dorna-Vatra , Runc hill, [47º21'N 25º20'E], 28 Sep, A. Procopianu-Procopovici s.n. (CERN?, not found).

Senecio paludosus subsp. angustifolius Holub (1962: 30) . Jacobaea paludosa subsp. angustifolia (Holub) Nordenstam & Greuter in Greuter & Raab-Straube (2006: 712). TYPE: Italy, Veneto, Venetia, flum. Mincio circa il Borghetto die Vallegio pr. Veronam, [45º21'N 10º43'E], 10 June 1886, G. Rigo s.n. (holotype, PR-616428!; isotype, B-10-0299741!).

Senecio paludosus var. fukarekii Gajić (1972: 33) . TYPE: Srbija [ Serbia], m. Vlasina , [44º14'N 19º38'E], P. Černjavski s.n. (holotype, BEO not seen).

42 • Phytotaxa 211 (1) © 2015 Magnolia Press

CALVO ET AL.

Senecio paludosus f. gymnocarpus Soó (1973: 173) . TYPE: Hungary, Pest, Ócsa , [47º17'N 19º12'E], K.R. Soó s.n. (holotype, BP not seen).

Senecio paludosus f. hungaricus Soó (1973: 173) . TYPE: Hungary, Pest, Bugyi , [47º14'N 19º10'E], K.R. Soó s.n. (holotype, DE not seen).

Stem weakly arachnoid in the upper half to entirely glabrous. Cauline leaves glabrescent to sparsely arachnoid above, glabrescent to weakly tomentose-lanate beneath. Involucral bracts glabrescent to weakly arachnoid. Achenes glabrous to covered with scattered trichomes, sometimes ± dense through the whole surface or only on the upper half. Chromosome number: 2 n =20 ( Lövkvist & Hultgård 1999: 33); 2 n =40 ( Kuzmanov et al. 1986: 72, Altınordu et al. 2014: 2208).

Iconography: — Hegi (1928: 754, fig. 460, pl. 268-4); Nyárády (1964: 569, pl. 110, fig. 2); Konechnaya (1994: 61, pl. 5, fig. 2); Hodálová (2003: 76, fig. 2A–2B); Marhold et al. (2003: 374, fig. 1–2).

Distribution and habitat: — Austria, Belarus *, Belgium, Bulgaria, Croatia, Czech Republic, Estonia, France, Germany, Great Britain, Hungary, Italy, Latvia, Lithuania *, Moldova *, Montenegro, Netherlands, Poland, Romania, Russia, Serbia, Slovakia *, Slovenia, Sweden, Switzerland, Turkey, Ukraine; marshes, banks of the rivers, edge of lakes, damp places, on silts, slimes, mud, sometimes partially submerged; elevations of 0–1300 m ( Figure 14 ).

Phenology: — Flowering from June to September.

Discussion: — Senecio paludosus subsp. angustifolius was described by Holub (1962: 30) as a taxon characterized by displaying linear to linear-lanceolate leaves, arachnoid-tomentose beneath, glabrous (rarely subarachnoid) above, and glabrous achenes. Marhold et al. (2003) confirmed the presence of this taxon in western and central Europe, and also underlined that intermediate morphological types between subsp. paludosus and subsp. angustifolius occur scattered in Netherlands, France, Germany, Austria, Czech Republic, Slovakia, and Ukraine. We observed that the populations from Italy usually display leaves very narrow with weakly tomentose-lanate indumentum beneath, and achenes glabrous. Specimens with wider leaves, densely arachnoid beneath (even weakly tomentose-lanate) and achenes glabrous, are more common in Netherlands, Belgium, France, and Switzerland. Populations from Anatolia and Bulgaria bear thicker leaves, slightly arachnoid beneath, and the

SYSTEMATICS OF SENECIO SECTION CROCISERIS

Phytotaxa 211 (1) © 2015 Magnolia Press • 43 achenes are hairy on the whole surface. Other forms characterized by the glabrescent leaves and scattered trichomes on the whole surface of the achenes are common in Russia, Sweden, Germany, Romania, northern Austria, Poland. Nonetheless, specimens with leaves arachnoid beneath and glabrous achenes also appear in Poland, and we also found intermediate forms in most of the central and eastern European countries. Therefore, no geographical pattern is observed. On this basis, we do not recognize S. paludosus subsp. angustifolius , and we include it within the variability of S. paludosus subsp. paludosus . Multiple hybridization events could be responsible of such puzzling distribution and variable morphology.

Euro+Med PlantBase (2006+, http://ww2.bgbm.org/EuroPlusMed/PTaxonDetailOccurrence.asp?NameId=700 0832&PTRefFk=7000000, accessed 18 March 2014) also records S. paludosus subsp. paludosus from Belarus, Lithuania, Moldova, and Slovakia. We have not studied material from these countries, thus, they appear in the text with an asterisk.

Selected specimens examined. AUSTRIA. Carinthia: Nittel-Kärnten, Klagenfurt-SW, Siebenhügel, Molinietum N Schleusenweg, 46º36’N, 14º16’E, 19 July 1990, G. H . Leute 9351/4 ( WU) . Styria: Stiria superior, ad lacum Gaishornsee prope pagum Gaishorn, 47º29’N, 14º32’E, July 1904, H . Fleischmann 198 ( WU) . BELGIUM. Hermalle et Herstal (Liége), bords de la Meuse, 50º41’N, 5º41’E, 13 July 1868, E . Marchal 331 ( K) . BULGARIA. In agro Bataško Polje, 41º58’N, 24º12’E, 7 Aug 1887, T . Gheorghieff s.n. ( WU) . CROATIA. Vrbovec, Berek, 45º44’N, 16º49’E, 5 Sep 1917, I . Pevalek s.n. ( WU) . ESTONIA. N shore of lake Vortsjärv in front of the camping place, 58º24’N, 26º6’E, 14 Aug 1993, R . Lampinen & T . Lampinen 18095 ( H) . FRANCE. Essonne: Seine-et-Oise, Itteville, tourbières de la Juine, 48º31’N, 2º20’E, 15 July 1926, M . Despaty 2088 ( MA). Haute-Saône: Port-sur- Saône, bords de la Saône , 47º41’N, 6º2’E, 10 Aug 1932, V . Madiot 6651 ( MA). Marne : La Chesne, étang de Bairon, étang Neuf, 49º31’N, 4º46’E, 14 Aug 1979, J . Duvigneaud 79 ( MA) . GERMANY. Bavaria: bords de la Woernitz près de Wassertrüdingen en Franconie , 49º1’N, 10º36’E, July 1848, G. A . Hauser 399 ( L). Brandenburg: Lübbenau, im Schilfbestand am Ufer des Burg-Lübbenauer, 51º51’N, 13º58’E, 21 Aug 1962, W . Hempel s.n. ( B). North Rhine-Westphalia: Niederrhein, Broich bei Kempen, 50º56’N, 6º19’E, 14 July 1931, H . Höppner 793 ( K) . GREAT BRITAIN. Seed from Cambridgeshire, 52º16’N, 0º5’E, 15 Aug 1991, T . Wells s.n. ( K) . HUNGARY. Prope pagum Sziget-Ujfalú, 46º12’N, 19º38’E, 19 June 1879, J. A . Tauscher s.n. ( MO) . ITALY. Lombardy: Bresciana in loc. paludosis ad lacum d'Iseo, 45º40’N, 10º4’E, 25 June 1871, P . Porta s.n. ( K). Trentino-Alto Adige / Südtirol: Bozen, Etschmööser unter Frangart , 46º28’N, 11º18’E, 11 July 1905, H. F . Handel-Mazzetti s.n. ( WU). Veneto: Padova , Venetia, inter Monselice et Arquà-Petrarca, 45º15’N, 11º43’E, June 1911, A . Fiori & A . Béguinot 1770 ( WU) . LATVIA. pr. Daugavpils, 55º52’N, 26º29’E, 6 Aug 2010, J . Calvo 4933 ( MA) . MONTENEGRO. Antivari, Černa Gora, 42º4’N, 19º5’E, 1894, T . Pichler s.n. ( US) . NETHERLANDS. R . Ijssel near railway-station Voorst, north-west of Zutphen, 52º9’N, 6º8’E, 18 July 1957, J. C . Lindeman 434 ( MA) . POLAND. Breslau, Oderufer bei Grüneiche, 51º4’N, 17º8’E, 8 Aug 1892, E . Hellmann 619 ( B) . ROMANIA. Suceava: Moldova, distr. Botoşani, in locis paludosis "Podetele" versus fl. Siret, 47º43’N, 26º25’E, 22 Aug 1925, G. P . Grintescu 832 ( O). Argeș: Bucovina , distr. Câmpulung, ad stationem viae ferreae Poiana Stampii, 45º23’N, 25º3’E, 25 Aug 1936, G. P . Grintescu 832c ( L). Dolj: in valle fluminis Danubii, prope pagum Ciupercenii Noi , 43º54’N, 22º54’E, 14 June 1968, G . Popescu & M . Păun 750 ( WU) . RUSSIA. Kaliningrad: Insterburg, 54º38’N, 21º49’E, 1 Aug 1890, H . Kuehn s.n. ( B). Pskov: pr. Novoye Nikol'skoye , 57º27’N, 28º39’E, 5 Aug 2010, J . Calvo 4932 ( MA). St. Petersburg: coast of gulf of Finland, Lisiy Nos , 59º59’N, 30º5’E, 30 June 2010, J . Calvo, N . Nikolaiev & A . Stanislavsky 4921 ( MA) . SERBIA. Inter Perlez et Titel, 45º12’N, 20º20’E, 9 June 1968, E . Mayer 63380 ( M) . SLOVENIA. Cerkniško jezero prope pag. Dolenje jezero, 45º46’N, 14º21’E, 17 July 1977, E . Mayer 10001 ( B) . SWEDEN. Skåne, Håslöv, 55º26’N, 13º1’E, 8 Aug 1931, O. J . Hasslow 1566 ( K). Fribourg: in latere dextro lacûs Neocomi infra pagum "Chabrey" reipublicae Valdiae, 46º55’N, 6º58’E, 25 June 1971, H . Burdet et al. 97 ( NY). Vaud: Chevroux-Dessous , La Grève, 46º53’N, 6º54’E, 14 June 1959, E . Berger 4037 ( L) . TURKEY. Bolu: am Yeniçağa-See (bei Y. zwischen Bolu u. Gerede ), 40º46’N, 32º0’E, 18 Sep 1957, G . Wagenitz & H.- J . Beug 172 ( B). UKRANIE. Chernivetska: Basarabia, distr. Hotin , in valle rivuli Rachitna , loco "Recea" dicto, 48º22’N, 26º9’E, 24 Aug 1934, E . Topa 832b ( O). Dnipropetrovsk: prov. Mohilew, praesertim circa urbem Mohilew ad Borysthenem, 48º52’N, 34º29’E, 1862, N . Downar s.n. ( LE) .

Figures

FIGURE 14. Distribution map for Senecio paludosus Linnaeus subsp. paludosus (▲).