Phytotaxa 195 (4): 279–290 ISSN 1179-3155 (print edition) www.mapress.com/phytotaxa/ PHYTOTAXA Copyright © 2015 Magnolia Press Article ISSN 1179-3163 (online edition) http://dx.doi.org/10.11646/phytotaxa.195.4.3

Rubus gayeri and Rubus slavonicus, two new species of Rubus ser. Micantes (Rosa- ceae) from Central and South-Eastern Europe

GERGELY KIRÁLY1, Bohumil Trávníček 2 & Vojtěch Žíla3 1University of West , Institute of Silviculture and Forest Protection, H-9400 Sopron, Ady E. u. 5., Hungary. E-mail: [email protected] 2Department of Botany, Palacký University in Olomouc, Faculty of Science, Svobody 26, CZ-771 46, Olomouc, Czech Republic. E-mail: [email protected] 3Mládežnická 1227, CZ-386 01 Strakonice, Czech Republic. E-mail: [email protected]

Abstract

Two new apomictic species of bramble occurring in Hungary and adjacent regions, Rubus gayeri and R. slavonicus, section Rubus, subsection Hiemales E. H. L. Krause, series Micantes Sudre, are described. Diagnostic features, pen drawings and photographs of both new species are presented; moreover, distribution maps, list of revised specimens and habitat characteristics are included as well. R. gayeri is a regional bramble species occurring on the eastern foothills of the Alps (W Hungary, SE Austria and N Slovenia); its range is of approximately 120 km diameter. Originally, it was connected with acidophilous oak-hornbeam and beech forests and forest fringes, expanding later (due to anthropogenic influences) to secondary coniferous woods of base-poor soils. R. slavonicus has a specific long-drawn range from the northwestern Balkans (Bosnia & Herzegovina) to the centre of the Pannonian Basin (Hungary) of approximately 250 km diameter. Throughout its range it typically occurs in pedunculate oak-hornbeam forests of lower altitudes with several sub-Mediterranean elements. In the northernmost isolated part of the range (N of Lake Balaton) it is found in extrazonal beech forests on basalt bedrock.

Keywords: Rubus, ser. Micantes, taxonomy, biogeography, apomixis, Central & SE Europe

Introduction

The European representatives of blackberries (Rubus Linnaeus 1753: 492 subgen. Rubus) form a complex of a few sexual diploid species and numerous agamospermic polyploids (Holub 1992, Weber 1995, 1999). Based on regional studies (Weber 1973, 1985, Matzke-Hajek 1997), the taxonomy of the subgenus is well known in central and north- western Europe, whereas first modern insights on the blackberries of south-eastern Europe (e.g. Trávníček & Zázvorka 2005, Kurtto et al. 2010) have only been published recently. Rubus subsect. Hiemales E. H. L. Krause (in Prahl et al. 1890: 57) ser. Micantes Sudre (1908: 16) is a somewhat heterogeneous, possible polyphyletic group, including species created as a result of hybridization between biotypes with and without stalked glands (Holub 1992, Weber 1995, Tomaszewski et al. 2013). The number of species in the series is approximately 60; the centre of their distribution is in central and north-western Europe (Kurtto et al. 2010). A recent revision of ser. Micantes in Hungary (Király et al. 2013) reconfirmed the occurrence of three widely distributed species (R. clusii Borbás 1885: 40, R. styriacus Halácsy 1890: 432, and R. tabanimontanus Figert 1905: 178), and one endemic regional species (R. balatonicus Borbás 1900: 414). In neighboring territories of eastern Austria and Slovenia two species of the series were recorded (R. clusii and R. styriacus); occurrences of both species in adjacent territories of Croatia were considered as doubtful (Weber & Maurer 1991, Maurer & Drescher 2000). Other parts of south-eastern Europe are practically unexplored from the point of view of modern batology (Kurtto et al. 2010), thus, although several taxa of ser. Micantes have been reported e.g. from Romania (Nyárády 1956), they are, due to the use of obsolete perspective of Sudre (1908–1913), unreliable. in the course of field studies on brambles in central and south-eastern Europe (Austria, Croatia, Hungary and Slovenia) we repeatedly observed two biotypes of Rubus ser. Micantes differing in several important features from the formerly described species of the series. Further assessments indicated that they represent hitherto unexplored and

Accepted by Federico Luebert: 7 Nov. 2014; published: 30 Jan. 2015 279 neglected species. The aim of the present study is to describe them as new apomictic species named Rubus gayeri and Rubus slavonicus.

Material and methods

Field studies were conducted between 2009 and 2013 at approximately 900 localities of Rubus in Austria, Bosnia & Herzegovina, Croatia, Hungary and Slovenia. For each locality, the geo-coordinates were determined using a Trimble Nomad GPS handheld device in WGS 84 projection. Specimens in the following herbaria were searched for records of Rubus ser. Micantes from the studied area: BP, BPU, DE, GJO, GZU, JPU, LJU, OL, PECS, SAMU, W, ZA and ZAHO (acronyms given according to Thiers 2014). The conspectus of data follows the (bio)geographical systems presented by Nikolić et al. (1998) for Croatia, Dövényi (2010) for Hungary and Perko (1998) for Slovenia, whereas for Austria and Bosnia & Herzegovina the administrative boundaries were used. The characterization of the newly described species, R. gayeri and R. slavonicus, was based on the revision of 30 specimens for each collected recently by the authors. First-year branches with well-developed leaves were examined together with the flowers and fruits of living material; abnormal and injured plants were not included in the assessments. Additional reference material for the comparative study of similar species was derived from the herbaria listed above. The concept of the terms adopted in the ecological characterization of the species follows Weber (2001).

Results and discussion

Rubus gayeri Király, Trávníček & Žíla, sp. nova

Type:—Hungary. Vas County, Szentpéterfa (Petrovo Selo), 2.6 km E of the village along the road to Ják, ”Szentpéterfai-erdő” forest, Scots pine plantations; N47.097500°; E16.523889°; 240 m, 16.9.2013, fruiting, G. Király (holotype: BP732260 and BP732261 (parts of the same specimen); isotypes: BP733730, BP733731, GJO, GZU, LJU, OL, W)

Description: Shrub, usually up to 80 cm tall. First-year stems low-arching, rooting at apex, bluntly angled, 3–7 mm in diameter. Sides ± flat or infrequently slightly convex, green or only slightly reddish when exposed to sun, with few 0.2–0.3 mm long hairs (later often glabrescent) and with 0–7(–12) stalked glands (0.3–0.5 mm long) per 1 cm length of stem side. Prickles 8–14(–18) per 5 cm length of stem, usually on angles, compressed and abruptly broadened at the base, straight or indistinctly curved, declining, (1–)2.5–6 mm long, yellowish with sometimes purplish tip. Leaves pedate, 5-foliolate, usually dark green, smooth to the touch, almost glabrous above (with few adpressed hairs on the veins), and with scattered 0.2–0.5 mm long hairs on the leaf margin; grayish-green and dense tomentose beneath, with felted hairs. Leaflets slightly imbricate, terminal ones with petiolules 17–31% as long as its lamina, ovate, slightly cordate or rounded at the base, gradually tapering to an acuminate apex 15–20 mm long. Basal leaflets ovate, (0.75– )0.9–1.1× as long as the petiole; petiolules 2–5 mm long. Indentation markedly uneven, teeth cuspidate, distinctly broader (2–4 mm) than long (1–2 mm). Petioles sparsely hairy, with many ± sessile and few stalked glands and with 14–20 curved prickles. Stipules filiform, ca. 0.5 mm broad, with sparse pilose hairs and stalked glands. Inflorescence paniculate, truncate near apex, conspicuously few-flowered, with patent branches, distal 2–8 cm leafless, below with 3-foliolate leaves; indumentum of inflorescence leaves is similar to those of the sterile stems. Inflorescence axis densely pubescent, with (5–)15–50 stalked glands per 1 cm length. Prickles 4–18 per 5 cm length of axis, slender, subulate, slightly curved or straight, declining, 2–5 mm long. Pedicels 0.5–1.5 cm long, densely pubescent, with 3–30 stalked glands; prickles 5–20, ± straight, 0.5–2 mm long. Sepals 6–9 mm long, greyish-felted with scattered stalked glands and slender pricklets, entirely reflexed after anthesis. Petals early falling, not touching each other, light pink, ± spathulate, (5–)6–7(–8) mm broad and (9–)10–13(–15) mm long, emarginate or sometimes rounded at the apex. Stamens somewhat longer than the light green styles; anthers glabrous, yellow; filaments whitish. Carpels and receptacle glabrous. Flowering VI–VII. Iconography and photos of the species are shown in Figures 1 and 2.

280 • Phytotaxa 195 (4) © 2015 Magnolia Press KIRÁLY et al. Figure 1. Drawings of Rubus gayeri: (a) inflorescence; (b) leaf; (c) detail of first-year branch with prickles; (d) margin of terminal leaflet; (e) axis of inflorescence; (f) peduncle; (g) detail of flowers; (h) petal. Del. J. Táborská.

Figure 2. Photos of Rubus gayeri: (a) first-year branch with typical leaves; (b) typical few-flowered inflorescence with patent branches (loc.: W Hungary, Szentpéterfa, locus classicus)

Rubus gayeri and Rubus slavonicus Phytotaxa 195 (4) © 2015 Magnolia Press • 281 Taxonomical remarks: Rubus gayeri is easily distinguishable from the majority of the representatives of ser. Micantes in the region (R. balatonicus, R. clusii and the newly described R. slavonicus) by the strongly different shape of leaves and by pink petals. It also differs from R. balatonicus and R. slavonicus by having reflexed sepals after anthesis, from R. clusii by the considerably lower number of stalked glands on the sterile stems. Nevertheless, R. liubensis W. Maurer 1979: 142 is separable from R. gayeri only on the basis of substantial morphological analysis (see Table 1). The main diagnostic characters of R. gayeri against R. liubensis are the higher number of prickles on the petiole, the density of stalked glands on the pedicel and on the surface of the sepal, and the glabrous ovary. R. liubensis was described as a member of ser. Rhamnifolii (Bab.) Focke (1877: 125) by Maurer (1979), but later it was transferred to ser. Discolores (P. J. Müll.) Focke (1914: 152) by Weber & Maurer (1991). However, due to its stalked glands on sterile stem, inflorescence axis and stipules, its proper position is undoubtedly in ser. Micantes.

Table 1. Main distinctive features of Rubus gayeri and Rubus liubensis Rubus gayeri Rubus liubensis First-year stem markedly bluntly angled rounded or slightly angled Number of stalked glands of first-year stem (per 1 cm of stem side) 0–7(–12) 0–1(–3)

Ratio (%) of length of petiolule and lamina of terminal leaflets 17–31 (26–)30–38

Number of prickles of petiole 14–20 9–16 Number of prickles per 5 cm length on the inflorescence axis 4–18 2–8

Number of stalked glands per 1 cm length on the inflorescence axis (5–)15–50 3–15

Number of stalked glands on the pedicel 3–30 0(–5)

Surface of sepals with scattered stalked glands without stalked glands (rarely up to 2 glands near the tip) Ovary glabrous sparsely hairy

Etymology: The name “gayeri” refers to Gyula Gáyer (1883–1932), outstanding botanist coming from western Hungary; expert in Rubus, author of the first complete Hungarian identification key of blackberries (Gáyer 1924–25). Distribution: We could not find any former collection of the species in herbaria examined, thus, we describe its range solely based on own collections and observations. Rubus gayeri is a regional bramble species with main part of the distribution area in western Hungary (“Nyugat-magyarországi peremvidék” macroregion), also occurring in south-eastern Austria and northern Slovenia. The range of the species is approx. 120 km long and 80 km broad in SE-NW direction on the eastern foothills of the Alps, its southernmost record is located near the town Lenti along the Hungarian-Slovenian borderline, whereas, the northernmost one is located near Fertőszentmiklós at the periphery of Lesser Plain (“Kisalföld”) (Figure 5a, Appendix 1). It is widespread in western Hungary, where it is abundant in Őrség and Göcsej Hills, scattered in the Kemeneshát and Sopron–Vasi-sík regions. In Austria, R. gayeri was recorded in southern Burgenland, and at a single locality south of Graz in Styria. In Slovenia it is scattered in the Goričko region. In terms of altitude, R. gayeri grows only in hilly environment and is missing in the submontane belt of the region; the recorded localities range from 143 to 380 m a.s.l. Ecology and biogeography: R. gayeri is moderately thermophilous and often strikingly suffers from heat stress and low relative air humidity in summer. It prefers nutrient-poor, acidic, semi-dry to moist or occasionally water- logged soils, it is most abundant in areas covered by tertiary clayey and gravelly sediments; whereas it is absent both from nutrient-rich soils of higher altitudes and base-rich soils of loess-covered areas. Originally, it was connected with acidophilous oak-hornbeam and beech forests and forest fringes, expanding later to secondary coniferous woods of base-poor soils (Figure 6a). Typical companion species of bramble are R. bifrons Vest 1821: 163, R. clusii, R. holosericeus Vest 1821: 163, R. radula Weihe (in Boenninghausen 1824: 152), and R. styriacus. The considerably rapid increase of coverage of Scots pine plantations in western Hungary from the 1950s has presumably played a prominent role in the migration of the species; the most abundant stands were found in this habitat type. According to our data, R. gayeri belongs to the few native brambles in the Pannonian Basin which migration and recent distribution was highly influenced by modern-day anthropogenic land-use modifications.

282 • Phytotaxa 195 (4) © 2015 Magnolia Press KIRÁLY et al. Rubus slavonicus Király, Trávníček & Žíla, sp. nova

Type:—Hungary. , Kaszó, 0.2 km W of the settlement, pedunculate oak wood; N46.320127°; E17.218524°; 172 m, 7.9.2013, fruiting, G. Király & D. Schmidt (holotype: BP732259, isotype: BP733732, BP733733, GJO, GZU, OL, W, ZA)

Description: Shrub, usually up to 80 cm tall. First-year stems low-arching, rooting at apex, bluntly angled, 3–7 mm in diameter. Sides ± flat, dull green, in sunny places suffused red-brown, with 10–30 ± patent hairs 0.2–0.6 mm long per 1 cm length of stem side and with numerous sessile glands; stalked glands (ca. 0.5 mm long) very scattered or absent. Prickles 7–15 per 5 cm length of stem, usually on angles, strongly compressed, gradually broadened at the base up to 5 mm, distinctly to strongly curved, 3–6(–7) mm long, yellowish or often reddish. Leaves palmate, 5-foliolate, usually dark green, with up to 50 appressed hairs per cm2 above when young, later often glabrescent; greyish-green beneath with dense stellate hairs. Terminal leaflets with petiolules 22–36% as long as its lamina, ovate, rounded or indistinctly cordate at the base, with a gradually tapering apex 20–25(–30) mm long. Basal leaflets ovate, with petiolules 2–6 mm long, (0.8–)0.9–1.4× as long as the petiole. Indentation regularly or often irregularly periodic, with incisions 1–3(–4) mm deep, teeth ± triangular. Petioles hairy, with several sessile glands and scattered stalked glands of different length; and with 10–22 curved prickles. Stipules 0.4–0.6 mm broad, with eglandular hairs and stalked glands. Inflorescence paniculate, its form various, conical, pyramidal or cylindrical, with erecto-patent branches; distal 5–10 cm leafless, then with 1–2 simple or divided leaves, below with 3-foliolate leaves; inflorescence leaves with often deeper indentation; their indumentum is similar to those of the sterile stems. Inflorescence axis densely pilose, with (5–)10–60(–100) stalked glands per 1 cm length. Terminal part of the inflorescence axis with few 1–3 mm long, rather slender, slightly curved, distant or indistinctly declining prickles. Lower part of the inflorescence with 3–8 prickles per 5 cm length of inflorescence axis; prickles strongly curved and declining, 3–5 mm long. Pedicels 1–2(–2.5) cm long, densely pilose, with (2–)5–20(–50) stalked glands; pricklets 7–15, ± straight, 0.5–2 mm long. Sepals 5–8 mm long, ovate-lanceolate, whitish-greyish-felted with stellate hairs; with sparse stalked glands and few slender pricklets, strikingly stellate-patent after anthesis, later often reflexed. Petals not touching each other, white, ± spathulate, 6–9 mm broad and 10–13 mm long, rounded at the apex. Stamens longer than the light green styles; anthers glabrous, yellow, filaments whitish. Ovaries sparsely pilose, rarely near glabrous. Receptacle pilose. Flowering VI–VII. Iconography and photos of the species are shown in Figures 3 and 4.

Figure 3. Drawings of Rubus slavonicus: (a) inflorescence; (b) leaf; (c) margin of terminal leaflet; (d) axis of inflorescence; (e) peduncle; (f) detail of flowers; (g) petal. Del. J. Táborská

Rubus gayeri and Rubus slavonicus Phytotaxa 195 (4) © 2015 Magnolia Press • 283 Figure 4. Photos of Rubus slavonicus: (a) First-year branch with typical leaves (loc.: S Hungary, Ötvöskónyi); (b) Inflorescence with typical stellate-patent sepals after anthesis (loc.: central Hungary, Uzsa)

Taxonomical remarks: Rubus slavonicus distinctly differs from R. clusii by the lack of stalked glands on the sterile stem, the lower number of prickles on the inflorescence axis and the position of sepals; also shape and some dimensions of leaf are (with overlaps) dissimilar. It is also easily told from R. balatonicus by the lower number of prickles on the sterile stem, and by the length and position of sepals. Nevertheless, it is rather similar to R. ambulans Matzk. 2004: 28 (described from western central Europe, with easternmost localities in Bavaria; Matzke-Hajek 2004). The main diagnostic characters of R. slavonicus against R. ambulans are the presence of stalked glands on the inflorescence axis and pedicels, the position of sepals after anthesis (patent versus reflexed) and the different serration of leaflets (periodic verus regular) (see also Table 2). Etymology: The epithet refers to the historical region “Slavonia” in north-eastern Croatia. Distribution: We recorded only two older herbarium specimens of the species (collected in the vicinity of , SW Hungary, where it has been found recently as well; these specimens in PECS were formerly misidentified as “R. gremlii Focke”), thus, we characterize its range predominantly based on own collections and observations. Rubus slavonicus is a regional bramble species with some tendency to a wide distribution, with a specific long-drawn range (approx. 250 km long and 50 km broad in N-S direction) from the northwestern Balkans to the centre of the Pannonian Basin. Its southernmost locality was found in northern Bosnia, and the northernmost ones are located near Uzsa in Transdanubian Mts (Dunántúli-középhegység), central Hungary (Figure 5b, Appendix 2). It is scattered (but locally abundant) in Belső-Somogy region (southwestern Hungary). In Croatia, it was recorded in significant number in the borderland of western Slavonia (Gornjoposavska mezoregija). Ecology and biogeography: R. slavonicus is a thermophilous and heliophilous bramble usually growing in sunny habitats (forest fringes, roadsides, clearings and young crops). It prefers nutrient- and base-rich, semi-dry to moist soils, and is most abundant in areas covered by alluvia or tertiary sandy sediments. Throughout its range it typically occurs in pedunculate oak-hornbeam forests (Figure 6b) of lower altitudes with several sub-Mediterranean elements (e.g. Euphorbia dulcis L., Lamium orvala L., Primula vulgaris Huds., Tamus communis L.). In the northernmost, isolated part of the range (Keszthely Mts north of the Lake Balaton) it is found in extrazonal beech stocks on basalt bedrock. Typical companion species of bramble in Croatia and southwestern Hungary are several biotypes of ser. Discolores and ser. Vestiti (Chaboiss.) Focke (1877: 285). In Keszthely Mts it grows together with several taxa of ser. Discolores, with R. macrophyllus Weihe & Nees 1824: 35, and with closely related taxa of ser. Micantes (R. balatonicus and R. clusii), thus, this mountains is an evident “hot-spot” of the latter group in this region.

284 • Phytotaxa 195 (4) © 2015 Magnolia Press KIRÁLY et al. Table 2. Main distinctive features of Rubus slavonicus and related species (based on own observations, in the case of R. ambulans also with respect of Matzke-Hajek 2004 and Matzke-Hajek, pers. comm.) Rubus slavonicus Rubus ambulans Rubus balatonicus Rubus clusii Number of stalked glands of first-year stem 0(–2) 0(–2) 0(–2) (3–)5–20 (per 1 cm of stem side) Number of prickles (per 5 cm of stem side) 7–15 7–15 (8–)13–25(–35) 11–25

Ratio (%) of length of petiolule and lamina (21–)25–36 (28–)30–38(–44) 24–32 (21–)25–36 of terminal leaflets Ratio (%) of length of petiole and of basal (70–)75–105(–120) (75–)80–110(–120) (65–)70–95(–110) (70–)85– leaflet 115(–120) Ratio (%) of width of basal and terminal (42–)46–65(–72) 56–70 (40–)46–64(–70) (40–)44–56(– leaflet 61) Serration of terminal leaflet, depth of periodic, 1–3(–4) regular (to indistinctly periodic, 1–3(–4) ± periodic, indentation (mm) periodic), 1.5–2.5 2–4 Number of prickles of petiole 10–22 12–17 14–28 17–27

Number of prickles per 5 cm length on the 3–8 3–8 13–30 8–12 inflorescence axis Number of stalked glands per 1 cm length on (5–)10–60(–100) 0(–1) 12–45 >25 the inflorescence axis Number of stalked glands on the pedicel (2–)5–20(–50) 0 (1–)3–20(–40) >30

Length of sepals (mm) 5–8 5–8 8–15 5–8

Position of sepals after anthesis stellate-patent reflexed erect reflexed

Ovary sparsely hairy sparsely hairy ± glabrous sparsely hairy

Figure 5. Distribution maps: (a) Rubus gayeri; (b) Rubus slavonicus

Rubus gayeri and Rubus slavonicus Phytotaxa 195 (4) © 2015 Magnolia Press • 285 Figure 6. (a) Typical habitat of Rubus gayeri: Scots pine plantation with monodominant carpet-like occurrence of the species (loc.: W Hungary, Szentpéterfa, locus classicus); (b) Typical habitat of Rubus slavonicus: Lowland pedunculate oak wood (loc.: S Hungary, Kaszó, locus classicus).

Acknowledgements

Thanks are due to Antun Alegro (Zagreb), Zoltán Barina (Budapest), János Csiky (Pécs), Andrea Dénes (Pécs), Nejc Jogan (Ljubljana), Attila V. Molnár (Debrecen), Bruno Wallnöfer (Vienna) and Kurt Zernig (Graz) for their technical help in the course of herbarium revisions, and for supply of literature sources and photographs on herbarium material. We appreciate kind comments of Günter Matzke-Hajek (Alfer) regarding to distinctive features of Rubus ambulans and constructive suggestions of the two anonymous reviewers which helped us to improve the manuscript. The study of Gergely Király was supported by project “Agrárklíma.2 VKSZ-12-1-2013-0034”, those of Bohumil Trávníček by the Czech Science Foundation (project no. 206/08/0890) and an internal grant of the Palacký University (PrF 2014/001). Richard Lansdown (Stroud) and Petra Šarhanová (Olomouc) kindly improved our English.

References

Boenninghausen, C.M.F. von (1824) Prodromus Florae Monasteriensis Westphalorum. Monasterii, Regensberg, XIV + 332 pp. http://dx.doi.org/10.5962/bhl.title.6344 Borbás, V. (1885) Clusius szedre (Rubus Clusii) [Bramble of Clusius (Rubus Clusii)]. Erdészeti Lapok 24: 401–402. Borbás, V. (1900) A Balaton flórája. A Balaton tavának és partmellékének növényföldrajza és edényes növényzete [Flora of Lake Balaton. Geobotany and vascular plants of Lake Balaton and its surroundings]. Magyar Földrajzi Társaság, Budapest, 431 pp. Dövényi, Z. (Ed.) (2010) Magyarország kistájainak katasztere [Cadastre of small regions of Hungary]. Budapest, MTA Földrajztudományi Kutatóintézet, 876 pp. Figert, E. (1905) I. Beiträge zur Kenntnis der Brombeeren in Schlesien. Allgemeine Botanische Zeitschrift 11: 177–179. Focke, W.O. (1877) Synopsis Ruborum Germaniae. Die deutschen Brombeerarten ausführlich beschrieben und erläutert. C. Ed. Müllers’s Verlagsbuchhandlung, Bremen, 434 pp. Focke, W.O. (1914) Species Ruborum. Monographiae generis Rubi Prodromus. Pars III. Bibliotheca Botanica 17(83): 225–360.

286 • Phytotaxa 195 (4) © 2015 Magnolia Press KIRÁLY et al. http://dx.doi.org/10.5962/bhl.title.15533 Gáyer, Gy. (1924) Rubus L. In: Jávorka, S. (Ed.) Magyar flóra (Flora Hungarica). Budapest, Studium, pp. 485–518. Halácsy, E. von (1890) Neue Brombeerformen aus Oesterreich. Österreichische Botanische Zeitschrift 40: 431–434. http://dx.doi.org/10.1007/bf01790570 Holub, J. (1992) A preliminary checklist of Rubus species occurring in the Czech Republic. Preslia 64: 97–132. Király, G., Trávníček, B. & Žíla, V. (2013) Revision of Rubus ser. Micantes occurring in Hungary and re-evaluation of the neglected Rubus balatonicus. Preslia 85: 505–526. Kurtto, A., Weber, H.E., Lampinen, R. & Sennikov, A.N. (Ed.) (2010) Atlas Florae Europaeae. Distribution of vascular plants in Europe 15. Rosaceae (Rubus). Helsinki: The Committee for Mapping the Flora of Europe & Societas Biologica Fennica Vanamo, 362 pp. Linnaeus, C. (1753) Species plantarum, exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. Vol 1–2. L. Salvii, Holmiae, 1200 pp. http://dx.doi.org/10.5962/bhl.title.669 Matzke-Hajek, G. (1997) Zur Evolution und Ausbreitung apomiktischer Rubus-Arten (Rosaceae) in Offenland-Ökosystemen. Bulletin of the Geobotanical Istitute ETH 63: 33–44. Matzke-Hajek, G. (2004) Was ist Rubus gremlii Focke? Berichte der Bayerischen Botanischen Gesellschaft 73/74: 17–34. Maurer, W. (1979) Die Verbreitung einiger Brombeerarten (Gattung Rubus) in der nordwestlichen Steiermark und in angrenzenden Gebieten. Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark 109: 137–150. Maurer, W. & Drescher, A. (2000) Die Verbreitung einiger Brombeerarten (Rubus subgen. Rubus) in Österreich und im angrenzenden Slowenien. Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark 130: 141–168. Nikolić, T., Bukovec, D., Šopf, J. & Jelaska, S.D. (1998) Kartiranje flore Hrvatske : Mogućnosti i standardi [Mapping of Croatian flora – possibilities and standards]. Natura Croatica Supplementum 7: 1–62. Nyárády, E.I. (1956) Rubus L. In: Săvulescu, T (Ed.) Flora Republici Populare Romȋne 4. Bucureşti, Editura Academiei Republici Populare Romȋne, pp. 276–580. Perko, D. (1998) The regionalization of Slovenia. Geografski Zbornik 38: 11–57. Prahl, P., von Fischer-Benzon, R. & Krause, E.H.L. (1890) Kritische Flora der Provinz Schleswig-Holstein, des angrenzenden Gebiets der Hansestädte Hamburg und Lübeck und des Fürstenthums Lübeck. Teil 2. Paul Toeche, Kiel, 345 pp. http://dx.doi.org/10.5962/bhl.title.12147 Sudre, H. (1908–1913) Rubi Europae vel monographia iconibus illustrata Ruborum Europae. Paris, Librairie des Sciences Naturelles, 309 pp. Thiers, B.M. (2014) Index herbariorum: a global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/ih/ (accessed 7 September 2014) Tomaszewski, D., Zieliński, J. & Gawlak, M. (2013) Foliar indumentum in central-European Rubus species (Rosaceae) and its contribution to the systematics of the group. Nordic Journal of Botany 31: 1–10. http://dx.doi.org/10.1111/j.1756-1051.2013.00116.x Trávníček, B. & Zázvorka, J. (2005) Taxonomy of Rubus ser. Discolores in the Czech Republic and adjacent regions. Preslia 77: 1–88. Vest, L.Ch. von (1821) Botanische Notizen aus Steyermark. Steyermärkische Zeitschrift (Heft 1), Joanneum, Graz, pp. 156–164. Weber, H.E. & Maurer, W. (1991) Kommentierte Checkliste der in Österreich nachgewiesenen Arten der Gattung Rubus L. (Rosaceae). Phyton (Austria) 31: 67–79. Weber, H.E. (1973) Die Gattung Rubus L. (Rosaceae) im nordwestlichen Europa. Phanerogamarum Monographs 7: 1–504. Weber, H.E. (1985) Rubi Westfalici. Die Brombeeren Westfalens und des Raumes Osnabrück (Rubus L. Subgenus Rubus). Abhandlungen des Westfälischen Museums für Naturkunde 47: 1–453. Weber, H.E. (1995) Rubus L. In: Weber, H.E. (Ed.) Gustav Hegi’s Illustrierte Flora von Mitteleuropa. 3nd ed., vol. 4/2A. Berlin & Oxford, Blackwell Wissenschafts-Verlag, pp. 284–595. Weber, H.E. (1999) Present state of taxonomy and mapping of blackberries (Rubus L.) in Europe. Acta Botanica Fennica 162: 161–168. Weber, H.E. (2001) Zeigerwerte der Rubus-Arten. Scripta Geobotanica 18: 167–174. Weihe, A. (1822–27) Rubi Germanici. Sumptibus Schoeniani, Elberfeldae, 125 pp. + 59 tab.

Appendix 1: Distribution data of Rubus gayeri

Specimens seen: AUSTRIA: (1) Deutsch Ehrensdorf, 0.4 km N of the village (N47.106861°; E16.410894°); 298 m (16.9.2013, coll. G. Király: herb. G. Király); (2) Moschendorf, 0.9 km of “Bergen Häuser” settlement (N47.051389°; E16.441667°); 235

Rubus gayeri and Rubus slavonicus Phytotaxa 195 (4) © 2015 Magnolia Press • 287 m (5.8.2011, obs. G. Király, B. Trávníček & V. Žíla, coll. B. Trávníček: OL); (3) Strem, 1 km N of the village along the road to Steinfurt (N47.060033°; E16.414292°); 210 m (16.9.2013, coll. G. Király: herb. G. Király). (4) Sankt Georgen an der Stiefing, 2.4 km N of the village (N46.896944°; E15.573056°); 305 m (27.6.2012, coll. G. Király & K. Zernig: herb. G. Király). hunGARY: (5) Apátistvánfalva, 1.8 km N of the village (N46.915°; E16.2575°); 290 m (4.8.2011, obs. G. Király, B. Trávníček & V. Žíla, coll. G Király: BP733741, herb. G. Király, B. Trávníček: OL); (6) Bajánysenye, 1.7 km N of the village (N46. 816667°; E16. 395278°); 240 m (10.9.2012, coll. G. Király: herb. G. Király); (7) Csesztreg, 2,1 km SW of the town (N46.7048°; E16.4821°); 175 m (9.7.2012, obs. G. Király, B. Trávníček & V. Žíla, coll. B. Trávníček OL, G. Király: herb. G. Király); (8) Csönge, 2,9 SE of the village (N47.335556°; E17.102778°); 165 m (13.9.2011, coll. G. Király & A. Mesterházy: herb. G. Király); (9) Csörötnek, 1.6 km S of the settlement, “Nagy-erdő” forest (N46.932778°; E16.372778°); 235 m (4.8.2011, obs. G. Király, B. Trávníček & V. Žíla, coll. B. Trávníček: OL); (10) Dénesfa, 5,2 km NW of the village (N47.494570°; E16.985690°); 143 m (15.9.2013, coll. G. Király: herb. G. Király); (11) Fertőszentmiklós, 4 km S of the village, “Csapodi-cser-erdő” forest (N47.530556°; E16.8875°); 160 m (27.9.2012, coll. G. Király: herb. G. Király); (12) Hernyék, 0.9 km W of the village (N46.651667°; E16.626111°); 210 m (30.8.2012, coll. G. Király & D. Schmidt: herb. G. Király); (13) Ivánc, 4.3 km S-SW of the village (N 46.896232°; E16.469042°); 278 m (17.6.2013, coll. G. Király: herb. G. Király); (14) Kám, pine plantations around “Jeli Arboretum” (N47.069722°; E16.898611°); 240 m (24.7.2012, coll. G. Király: herb. G. Király); (15) Kercaszomor, 1,1 km SE of the village (N46.78°; E16.362222°); 284 m (29.8.2011, coll. G. Király: herb. G. Király); (16) Kerkafalva, 1.9 km N- NE of the village (N46.788193°; E16.496188°); 227 m (18.6.2013, coll. G. Király: herb. G. Király); (17) Kerkakutas, 3,1 km S-SW of Irsapuszta settlement (N46.784167°; E16.566111°); 230 m (30.8.2012, coll. G. Király & D. Schmidt: herb. G. Király); (18) Lenti, 0.4 km S of the town (N46.611667°; E16.54°), 180 m (4.8.2012, obs. G. Király, B. Trávníček, M. Hohla & V. Žíla, coll. G. Király: herb. G. Király); (19) Nárai, 2.4 km SW of the village (N47.172222°; E16.522222°); 265 m (5.8.2011, obs. G. Király, B. Trávníček & V. Žíla, coll. B. Trávníček: OL, G. Király: herb. G. Király); (20) Nova, 3.5 km N-NW of the village (N46.719625°; E16.663048°), 244 m (18.6.2013, coll. G. Király: herb. G. Király); (21) Orfalu, ”Navrata” forest 0.6 km N of the village (N46.888056°; E16.265278°); 320 m (4.8.2011, obs. G. Király, B. Trávníček & V. Žíla, coll. B. Trávníček: OL); (22) Sorokpolány, 0.3 km SW of the village (N47.132916°; E16.659469°); 212 m (1.8.2012, obs. G. Király, B. Trávníček, M. Hohla & V. Žíla, coll. G. Király: herb. G. Király); (23) Szentgotthárd, 0.7 km S of Farkasfa settlement (N46.896667°; E16.313889°); 325 m (4.8.2011, obs. G. Király, B. Trávníček & V. Žíla, coll. B. Trávníček: OL); (24) Szentgyörgyvölgy, 2.5 km N of the village (N46.7495°; E16.4153°); 210 m (9.7.2012, obs. G. Király, B. Trávníček & V. Žíla, OL, herb. G. Király); (25) Szentpéterfa, 2.6 km E of the village, ”Szentpéterfai-erdő” forest (locus classicus); N47.097500°; E16.523889°); 240 m (5.8.2011, leg. G. Király, B. Trávníček & V. Žíla, OL, coll. G. Király: herb. G. Király; 17.6.2013, coll. G. Király: herb. G. Király); (26) Szilvágy, 2.4 km N-NE of the village (N46.744925°; E16.655446°); 250 m (18.6.2013, coll. G. Király: herb. G. Király); (27) Szőce, 2.6 km N-NW of the village (N46.918464°; E16.559047°), 247 m (17.6.2013, coll. G. Király: herb. G. Király); (28) Szőce, 4 km N of Őrimagyarósd village, “Csonkás-erdő” forest (N46.923611°; E16.5625°); 9065.3; 250 m (4.8.2011, obs. G. Király, B. Trávníček & V. Žíla, coll. B. Trávníček: OL, coll. G. Király: BP733740, herb. G. Király); (29) Türje, 3.3 km N of the village (N47.021111°; E17.071111°); 155 m (25.7.2012, coll. G. Király: herb. G. Király); (30) Vasvár, 1.6 km S of the town (N47.020278°; E16.805°); 240 m (1.9.2013, coll. G. Király: OL); (31) Zalalövő, 2.5 km S-SW of Irsapuszta settlement (N46.793056°; E16.565278°); 245 m (30.8.2012, coll. G. Király & D. Schmidt: herb. G. Király). SLOVENIA: (32) Bogojina, between Bogojina and Filovci (N46.680883°; E16.293192°); 196 m (4.8.2013, coll. G. Király & M. Hohla: herb. G. Király); (33) Hodos, at the N margin of the village (N46.839444°, E16.318611°); 280 m (10.9.2012, coll. G. Király & B. Bakan: herb. G. Király).

Recorded localities: HUNGARY: (1) Alsószölnök, near the border crossing point (N 46.9275°; E16.190278°); 250 m (20.9.2012, obs. G. Király); (2) Bajánsenye, 1,1 km S of the village (N 46.786111°; E16.380278°); 221 m (29.8.2011, obs. G. Király); (3) Bajánysenye, near the bridge of river Kerka (N46.812222°; E16.346389°); 225 m (10.9.2012, obs. G. Király); (4) Csehimindszent, 1.4 km NW from “Hosszúperesztegi-szőlőhegy” (N47.119722°; E16.978333°); 220 m (9.9.2012, obs. G. Király & A. Mesterházy); (5) Egyházasrádóc, 0.8 km N of Kisrádóc settlement (N47.116111°; E16.6325°); 220 m (21.9.2012, obs. G. Király); (6) Felsőszenterzsébet, 1.5 km W of the village (N46.763333°; E16.428333° and N46.763333°; E16.428333°); 230–250 m (24.8.2011, obs. G. Király); (7) Fertőszentmiklós, 4.6 km S of the village, “Csapodi-cser-erdő” forest (N47.530556°; E16.874167°); 169 m (27.9.2012, obs. G. Király); (8) Kercaszomor, 0.3 km NW of the village (N 46.789444°; E16.338056°); 239 m (22.8.2011, obs. G. Király); (9)

288 • Phytotaxa 195 (4) © 2015 Magnolia Press KIRÁLY et al. Magyarföld, W of the settlement (N46.7738°; E16.4116° and N46.784722°; E16.398333°); 220–260 m (9.7.2012, obs. G. Király, B. Trávníček & V. Žíla); (10) Magyarföld, S of the village (N46.765°; E16.425833° and N46.761111°; E16.418611°); 220–240 m (24.8.2011, obs. G. Király); (11) Magyarszombatfa, 0.5 km S of the village (N46.754167°; E16.344444°); 254 m (15.10.2011, obs. G. Király); (12) Magyarszombatfa, 0.6 km W of the village (N46.761389°; E16.328611°); 268 m (15.10.2011, obs. G. Király); (13) Nádasd, 2.5 km S of the village, “Nádasdi-erdő” forest (N46.9375°; E16.601111°); 250 m (30.8.2012, obs. G. Király & D. Schmidt); (14) Nagyrákos, 1–1.5 km S of the village (N46.813889°; E16.469722° and N46.821944°; E16.480556°); 255–260 m (26.9.2011, obs. G. Király); (15) Nova, 0.8 km N of Olgamajor (N46.722778°; E16.659167°); 240 m (30.8.2012, obs. G. Király & D. Schmidt); (16) Nova, 2.4 km N of the village (N46.712222°; E16.679444°); 240 m (30.8.2012, obs. G. Király & D. Schmidt); (17) Őriszentpéter, Városszer (N46.835439°; E16.424849°); 226 m (4.8.2013, obs. G. Király & M. Hohla); (18) Pankasz, 0.7 km SW of the village (N46.830556°; E16.489167°); 231 m (27.9.2011, obs. G. Király); (19) Pórszombat, 1,2 km NE of the village (N46.735°; E16.595556°); 200 m (30.8.2012, obs. G. Király & D. Schmidt); (20) Szatta, 1,1 km N of the village (N46.811944°; E16.483056°); 248 m (27.9.2011, obs. G. Király); (21) Szemenye, 0.8 km E of the village (N47.102778°; E16.930278°); 225 m (9.9.2012, obs. G. Király & A. Mesterházy); (22) Szentgyörgyvölgy, 1.8 km N of the village (N 46.748333°; E16.414722°); 224 m (24.8.2011, obs. G. Király); (23) Szilvágy, 1.5 km E of the village (N46.735556°; E16.651667°); 250 m (30.8.2012, obs. G. Király & D. Schmidt); (24) Vasszentmihály, 1,3–1.7 km N of the village (N46.983611°; E16.4025° and N46.985833°; E16.408889°); 220–235 m (21.9.2012, obs. G. Király); (25) Velemér, 0.3 km S of the village (N46.735556°; E16.365556°); 240 m (15.10.2011, obs. G. Király). SLOVENIA: (26) Bogojina, 2,1 km NE of the village (N46.689167°; E16.312778°); 260 m (10.9.2012, obs. G. Király & B. Bakan); (27) Bukovnica, 1,1 km NE of the village (N46.697778°; E16.337222°); 240 m (4.8.2013, obs. G. Király & M. Hohla); (28) Dolenci, 0.7 km E of the village (N46.855833°; E16.294722°); 260 m (10.9.2012, obs. G. Király & B. Bakan); (29) Domanjševci, 1,1 km S of the village (N46.774722°; E16.295833°); 290 m (10.9.2012, obs. G. Király & B. Bakan); (30) Grad, 0.1 km W of the castle (N46.800278°; E16.094167°); 320 m (10.9.2012, obs. G. Király & B. Bakan); (31) Križevci, 0.9 km SW of the village (N46.774722°, E16.218056°); 370 m (10.9.2012, obs. G. Király & B. Bakan); (32) Krplivnik, 0.4 km S from the settlement (N46.806111°; E16.315278°); 250 m (10.9.2012, obs. G. Király & B. Bakan); (33) Kustanovci, 0.4 km SE from the sand pit (N46.784444°; E16.193333°); 380 m (10.9.2012, obs. G. Király & B. Bakan); (34) Središče, 0,5–1.5 km S of the settlement (N46.770278°; E16.311944° and N46.756667°; E16.313889°); 230–300 m (10.9.2012, obs. G. Király & B. Bakan).

Appendix 2: Distribution data of Rubus slavonicus

Specimens seen: BOSNIA AND HERZEGOVINA: (1) Podovi, 0.5 km N of the village (N44,674114°; E16,771853°); 198 m (29.9.2013, coll. G. Király, Z. Barina and D. Pifkó: herb. G. Király). croaTIA: (2) Bjelovar, Letičani, forest fringes along the road nr. 47 (N45.937489°; E16.885974°); 177 m (3.8.2013, obs. G. Király, B. Trávníček, M. Hohla & V. Žíla, coll. B. Trávníček: OL, G. Király: herb. G. Király); (3) Kupinovac, 0.5 km SE of the village (N45.9425°; E16.8962°); 205 m (8.7.2012, obs. G. Király, B. Trávníček & V. Žíla, coll. B. Trávníček: OL, G. Király: herb. G. Király); (4) Mala Pisanica, 0.8 km N of the village (N45.7888°; E17.0112°); 155 m (8.7.2012, obs. G. Király, B. Trávníček & V. Žíla, coll. B. Trávníček: OL, G. Király: herb. G. Király); (5) Međurača, 1.5 km S of the village (N45.777257°; E16.892391°); 118 m (3.8.2013, obs. G. Király, B. Trávníček, M. Hohla & V. Žíla, coll. B. Trávníček: OL, G. Király: herb. G. Király); (6) Nova Ploščica, 0.4 km SE of the village (N45.716978°; E16.930205°); 130 m (3.8.2013, obs. G. Király, B. Trávníček, M. Hohla & V. Žíla, coll. B. Trávníček: OL, G. Király: herb. G. Király); (8) Podgarić, at the crossroads to Grad Garić (N45.639859°; E16.761828°); 207 m (3.8.2013, obs. G. Király, B. Trávníček, M. Hohla & V. Žíla, coll. B. Trávníček: OL, G. Király: herb. G. Király); (9) Trnovitički Popovac, 1 km SE of the village (N45.634798°; E16.886126°); 133 m (3.8.2013, obs. G. Király, B. Trávníček, M. Hohla & V. Žíla, coll. B. Trávníček: OL, G. Király: herb. G. Király). hunGARY: (10) Sümeg, 2.5 km SE of the town, forest fringes near to the road nr. 84 (N46.951147°; E17.307217°); 184 m (27.6.2013, coll. G. Király: herb. G. Király); (11) Uzsa, 1.6 km SW of railway station (N46.908333°; E17.3181°); 205 m (17.6.2012, coll. G. Király: herb. G. Király, BP733746; 7.7.2012, obs. G. Király, B. Trávníček & V. Žíla, coll. B. Trávníček: OL, G. Király: BP733745, herb. G. Király); (12) Uzsa, 0.8 km W-SW from railway station (N46.913889°; E17.321944°); 170 m (27.6.2013, coll. G. Király: herb. G. Király); (13) Uzsa, 0,9 W-NW of the village (N46.898115°; E17.318255°); 260 m (27.6.2013, coll. G. Király: herb. G. Király); (14) Barcs, Kuti-őrház – Halastó; (7.8.1984, coll. Zs. Petrovics as “R. gremlii”, PECS); (15) Darány, 1 km W of the settlement (N45.978946°; E17.570885°); 130 m

Rubus gayeri and Rubus slavonicus Phytotaxa 195 (4) © 2015 Magnolia Press • 289 (2.8.2013, obs. G. Király, B. Trávníček, M. Hohla & V. Žíla, coll. B. Trávníček: OL, G. Király: herb. G. Király); (16) Darány, Borókás – Csirkota; 0071.1 (28.8.1984, coll. Zs. Petrovics as “R. gremlii”, PECS); (17) Kaszó, 0.7 km NW from Kanizsaberek settlement (N46.3365°; E17.185°); 170 m (1.9.2011, coll. G. Király: herb. G. Király; 9.7.2012, obs. G. Király, B. Trávníček & V. Žíla, coll. B. Trávníček: OL, G. Király: herb. G. Király); (18) Kaszó, 0.2 km W of the settlement (locus classicus) (N46.320127°; E17.218524°); 172 m forest (1.9.2011, coll. G. Király: herb. G. Király; 9.7.2012, obs.. G. Király, B. Trávníček & V. Žíla, coll. B. Trávníček: OL, G. Király: BP733743, herb. G. Király; 7.9.2013, coll. G. Király & D. Schmidt: BP732259, BP733742, herb. G. Király); (19) Ötvöskónyi, 0.7 km SE of the village (N46.2875°; E17.383056°); 137 m (1.9.2011, coll. G. Király: BP733744, herb. G. Király); (20) , 1.3 km NW of the village (N46.516786°; E17.550919°); 147 m (17.8.2013, coll. G. Király: herb. G. Király); (21) Somogyszob, 1.5 km W of the village, “Kaszói-erdő”; (N46.295833°; E17.260556°); 155 m (1.9.2011, coll. G. Király: herb. G. Király).

290 • Phytotaxa 195 (4) © 2015 Magnolia Press KIRÁLY et al.