PHYTOLOGIA BALCANICA 10 (2-3): 201–205, Sofia, 2004 201

A contribution to the flora of East

Antoaneta Petrova

Botanical Garden, Bulgarian Academy of Sciences, P.O. Box 664, 1000 Sofia, Bulgaria, e-mail: [email protected] Received: February 5, 2004 ▷ Accepted: March 22, 2004

Abstract. New chorological data about 24 taxa are reported in the present work. Nine species are new for the floristic region of the Coast, two for the Northeast Bulgaria, four for the Balkan Range (Eastern) – three of them collected in the area of Sliven divide, one for the Toundzha Hilly Country and three for Mt . One more species is confirmed for the Balkan Range. Data are also supplied on the new localities of some rare plants, including a second locality for Cytinus clusii in the country.

Key words: Bulgaria, chorology, flora

Introduction Anthoxanthum aristatum Boiss. Balkan Range (Eastern): on the southern slopes This paper presents new data about the flora of five of the Sinite Kamuni rock massif, near to the visitors’ floristic regions in East Bulgaria: the Black Sea Coast, centre, along Haidoushka trail, etc., 16.05.2003, MH- Northeast Bulgaria, Balkan Range (Eastern), Toundzha 42, 42°42′21″ N, 26°21′08″ E, SC, SOM 158531. Forms Hilly Country and Mt Strandzha. The data have been extensive populations, occasionally dominated by it. collected during various field studies in the period A new species for the Eastern Balkan Range. 1992–2003. The names of the taxa are cited chiefly after Buglossoides incrassata (Guss.) I. M. Johnston Kozhuharov (1992a). The UTM coordinates of the lo- Black Sea Coast (Southern): in sandy places to the cations are given, as well as the geographical coordi- north of village, along the road to Perla lo- nates of some. A visual assessment of the populations cality, in the region of Stamoplo marsh, with flow- of the more rare species is provided, as well as data ers, 02.05.2002, NG-67, 42°16′47″ N, 27°45′07″ E, SC, about their habitat and plant community. The speci- SOM 157950. mens are deposed in the Herbarium of the Institute of A new floristic region for this species so far known Botany, Sofia (SOM). in Bulgaria only from the Thracian Lowland and Central Rhodopes (Andreev & Peev 1982). The newly Results and discussion established location is at a lower altitude than the for- merly reported one for the species.

Amelanchier ovalis Medik. Capsella rubella Reut. Black Sea Coast (Northern): in rocky places within Black Sea Coast (Southern): in clayey and sandy the central group of the Pobiti Kamuni phenomenon, places to the north of Primorsko village, between the Varna district, with flowers, single shrubs, 2.05.2000, two parts of the Stamoplo marsh, 25.03.2002, NG- NH-058, 43°13′28″ N, 27°42′23″ E, SC, SOM 155572. 67, SC, SOM 157936; along the road to Perla locali- A new species for the flora of the Black Sea Coast. ty, to the north of Primorsko village, 01.05.2002, NG-

13 • Phytol. Balcan. 10(2-3) • 2004 202 Petrova, A. • A contribution to the flora of E Bulgaria

67, SC, SOM 157970, local populations, but with high Cytinus clusii (Nyman) Gand. density of specimens; in a pasture near vil- Mt Strandzha: in stony places in the valley of Veleka lage, 02.06.2003, NG-85, SC, SOM 158511. river, between the villages Kosti and , on Mt Strandzha: on a street of Malko Turnovo town, shrubs of Cistus incanus L., with flowers, 12.05.1997, 04.06.2003, NG-44, SC, SOM 158507. NG-75, SC, SOM 155226. Six individuals were ob- Balkan Range (Eastern): in a pasture southwards served on an area of about 100 m2. of Duskotna village, 18.05.2003, NH-14, SC, SOM The species has been so far known only from one 158553. All specimens are with flowers and fruits. location in Mt Strandzha: Pirena locality to the north According to Anchev (1992), the species is known of Kosti village (Dimitrov & al. 1997). from the Thracian Lowland. It is included in the list of species occurring on the dunes in Slunchev Bryag Digitalis ferruginea L. (Meshinev & al. 1994), and later reported from the Black Sea Coast (Southern): in the thinner spots Eastern Rhodopes by Gussev & al. (1998). Data on the of a forest of Quercus frainetto Ten and Q. cerris L. new regions in which it occurs, as well as on the new in Perla locality, to the north of Primorsko village, localities along the Southern Black Sea Coast provide at 15 m, with flowers and fruits, 22.08.2002, NG-67, evidence of a much wider distribution in the southern 42°17′11.7″ N, 27°44′57.2″ E, SC, SOM 157972. This regions of the country. species forms small groups of individuals in differ- ent places of the forest massif between Perla and the Cephalorrhynchus tuberosus (Steven) Schchian mouth of river . Balkan Range (Eastern): in a thinned oak forest in The species is new for this floristic region and the the Sinite Kamuni rock massif, eastwards from the lift, above-mentioned locality also expands the range of its with flowers, 30.05.2003, MH-42, SC, SOM 158551. vertical distribution reported by Assenov (1995). The population was small and dispersed. The species is reported for the Sliven district by Euphorbia maculata L. Velenovsky (1891), on the basis of material collect- Mt Strandzha: in sandy places along the road to ed by Skorpil. Stojanov & al. (1967) also mentioned Malko Turnovo town, at about 0.5 km after the road Sliven district as one of the regions in which it occurs fork to the Kachoul locality, with flowers and fruits, in Bulgaria. In some later published general sources 04.06.2003, NG-44, 42°01′33″ N, 27°16′39″ E, SC. on the flora, the Eastern Balkan Range was not men- An adventitious species reported recently for the tioned for this species (Peev 1992; Assyov & al. 2002). first time from Mt Strandzha (Bancheva & al. 2002) The presently collected material confirms the occur- and so far identified for the Black Sea Coast, the rence of C. tuberosus in the Balkan Range. Danubian Plain, the Valley of Strouma River and the Sofia floristic region (Andreev 1992). The data show Cerastium glomeratum Thuill. wider distribution of the species in the region. Black Sea Coast (Southern): Perla location, with flowers and fruits, 02.05.2002, NG-67, 42°16′47″ N, Koeleria brevis Stev. 27°45′07″ E, SC, SOM 157937. Northeast Bulgaria: in a pasture near Vetrino vil- The occurrence of this species along the Black Sea lage, Varna district, 18.05.2003, NH-39, 43.284° N, Coast is confirmed. Stojanov & al. (1966) mentioned it 027.4235° E, SC, SOM 158547. as distributed in the meadows and plow-fields all over Actually, this species is widely distributed in the country, but in later sources (Petrova 1992) the Northeast Bulgaria (Varna district) in dry grassy plac- species was not reported for some of the regions. es, chiefly on calcareous stony terrains, but was not mentioned for that region by Kozhuharov (1992b). Clematis recta L. The present report documents its distribution in the Black Sea Coast (Southern): in a dune slack among region. the dunes in the region of Arkoutino, with flow- ers, single plants,17.05.1995, NG-68, 42°19′34″ N, Linum corymbolosum Rchb. 027°44′22″ E SC, SOM 155220. Black Sea Coast (Northern): in grassy places in the A new species for the flora of the Black Sea Coast, Kaliakra Reserve, with flowers and fruits, 12.06.1999, in an unusual dune habitat. PJ-20, SC, SOM 159575. Phytol. Balcan. 10(2-3) • Sofia • 2004 203

A new species for the flora of the Northern Black The species is distributed in Mt Strandzha and along Sea Coast (Petrova 1992). the Southern Black Sea Coast and is entered as rare in the Red Data Book of PR Bulgaria (Popova 1984). The Medicago constricta Durazz. location is reported here as one outlining the northern Black Sea Coast (Southern): in the dunes be- distribution limits of the species in Bulgaria. tween Arkoutino and Ropotamo River, 17.05.1995 and 10.05.1997, NG-68, 42°19′34″ N, 27°44′22″ E, SC Muscari armeniacum Leichtlin ex Baker (AP), SOM 155223, 155224. The two collections were Balkan Range (Eastern): in stony places at made from different parts of the dunes, mainly on Peschenik in the Sinite Kamuni Nature Park, with dune crests fixed with tree and shrub vegetation. M. flowers, 17.05.2003, MH-42, SV. constricta inhabited stretches under grassy vegetation. A new species for this floristic region. The populations observed were small: up to 30 plants. The species was also observed in May 2003, in a place Orchis laxiflora Lam. adjacent to a coastal trail to the mouth of Ropotamo Mt Strandzha: in a wet meadow in the valley of River, again with a small population on shrub-fixed Veleka River, near Sveti Iliya locality, westwards of Kosti dunes, at the borders of thorn bushes. village, with flowers, 03.06.2003, NG-65, 42°03′33″ N, A rare species in the Red Data Book of PR Bulgaria 27°45′57 ″ E, SC, SOM 159580, the population num- (Kozhuharov 1984), until recently known for the coun- bered about 250 flowering individuals; in a wet mead- try only from the Strouma River Valley (Southern) ow in the valley of Veleka River, near the marsh in the (Kozhuharov 1992b). Reported recently for the Black Kachoul locality, with flowers, 04.06.2003, NG-55, Sea Coast (Southern) (Velchev & Vasilev 2002) from 42° 01′22″ N, 27°37′05″ E, SC, SOM 158509. The popu- the Kavatsite region, southwards from town lation numbered about 700–800 flowering individuals. and adjacent to the mouth of Dyavolska River, to the O. elegans Heuff. of the O. laxiflora group (Delforge south of Primorsko village. The submitted data pro- 1995) is widely distributed in Bulgaria. O. laxiflora vides evidence of the wider distribution of this rare for Lam. s.str. is mainly spread in the Mediterranean. In Bulgaria Mediterranean species in the region. Bulgaria it occurs in the wet meadows of the Eastern Rhodopes (material collected by Kitanov – SO 32504; Medicago littoralis Loisel. Delipavlov – SOA 42809; Petrova, Gerasimova & Black Sea Coast (Southern): along the coastal sands Venkova – SOM 155372, SOM 155 371, SOM 155596, in the Lipite bay, to the south of Sinemorets village, SOM 155373, SOM 157596). Assyov & al. (2002) re- with fruits, 21.05.1994, NG-84, SC (AP), SOM 155221; ported O. laxiflora for the Eastern Rhodopes on the ba- on coastal meadows to the south of Sinemorets vil- sis of the observations of Petrova, and for Mt Strandzha lage, with fruits, 21.05.1994, NG 84, SC (AP), SOM on the basis of flowers given to A. Petrova by B. Milchev 155222. and U. Georgieva, collected at the Kachoul locality, re- Also seen in a forest glade southwards of spectively in 1998 and 2001. The present report con- town. A rare species in the Red Data Book of PR firms the distribution of this species in the region of Mt Bulgaria known only from that floristic region, with Strandzha, and mentions concrete locations and data one-time collections at the mouth of Veleka River, in on the numbers of the populations. the vicinities of and Sozopol towns (Bondev & Kozhuharov 1963; Kozhuharov 1984). The observed Orobanche caryophyllacea Sm. populations were small in numbers and density, but Toundzha Hilly Country: in a ravine above Aitos provide evidence of the wider distribution of the spe- town, close to a location of Astracantha aitosensis cies in the region. (Ivaniš.) Podl., with flowers, 18.05.2003, single indi- vidualss on Galium album Mill., NH-22, 42°41′43″ N, Mespilus gеrmanica L. 27°16′39″ E, SC, SOM 158561. Black Sea Coast (Southern): in a forest of Quercus A new species for the flora of the Toundzha Hilly frainetto and Q. cerris in Perla locality, to the north Country, so far known from some more westernmost of Primorsko village, 02.05.2002, NG-67, 42°17′27″ N, regions of the country: the Danubian Plain, Central 27°45′30″ E, SC (AP), SOM 157948. Single shrubs, Balkan Range, Sofia region and Znepole (Andreev very sparse in the forest. 1992). The same distribution is mentioned by 204 Petrova, A. • A contribution to the flora of E Bulgaria

Delipavlov (1995), but in the variability description O. Sesleria bielzii Schur caryophyllacea f. macroglossa (Wallr.) G. Beck. is men- Balkan Range (Eastern): in a rocky calcareous place tioned for the Eastern Balkan Range (Sliven district). in the Enyova Boulka locality in the Sinite Kamuni Nature Park, at the beginning of flowering, 17.05.2003, Poa angustifolia L. MH-52, 42°42′53″ N, 26°24′00″ E, SC, SOM 158564, Northeast Bulgaria: in a pasture near Vetrino vil- 158553. The population was relatively extensive. lage, Varna district, 18.05.2003, NH-39, 43.284° N, A new species for the Eastern Balkan Range, so far 27.4235°, SC, SOM 158547. known from the Western and Central Balkan Range, This species is widely distributed in Northeast Mt , and Mt (Assyov & al. 2002). Bulgaria, occasionally as a dominating species in some pastures and meadows, but was not mentioned for the Thymus glabrescens Willd. region by Kozhuharov (1992b). The present report Black Sea Coast (Northern): in rocky places with- documents its distribution in the region. in the Avrenska Polyana group of the Pobitite Kamuni natural phenomenon, westwards of Beloslav town, Pyracantha coccinea M. J. Roemer 02.05.1992, N- 58, SC, SOM 155917; in stony places Black Sea Coast (Southern): in the sand dunes above Taoukliman, district, with flowers and to the north of Primorsko village, with flowers, fruits, 14.06.1999, PJ-20, SC. 19.08.2002, NG-67, 42°16′58.7″ N, 27°45′08.6″ E and Мarkova (1989) reported the species at the Black 42°16′55.1″ N, 027°45′04.4″, SC, SOM 157 971. Two Sea Coast only around town, but subsequently groups of 4–6 individuals were observed at the mar- (Мarkova 1992) the Black Sea Coast was not mentioned gins of a dune slack, eastwards from the dyke zone be- among the areas of occurrence of this species. The tween the two parts of the Stamoplo marsh. The dune above-cited data confirm the species distribution for slack were overgrown with shrubs (Crataegus monogy- the Black Sea Coast. T. glabrescens was also observed in na Jacq., Prunus spinosa L., Rubus spp.), lianas (Smilax the Kaliakra Reserve; Yailata locality near exelsa L., Periploca graeca L.) and single trees of Tilia village; in two more groups of the Pobitite Kamuni phe- tomentosa Moench. nomenon (Banovska and Slunchevo southeast). All da- A threatened species in the Red Data Book of PR ta testify to the wide distribution of the species along Bulgaria (Popova 1984), a Tertiary relict. In Bulgaria the Northern Black Sea Coast. it is mainly distributed in Mt Strandzha. At the Black Sea Coast it is known only from a location in the re- Vicia laeta Ces. gion of (Gussev & Novoselski 1997), but it is re- Black Sea Coast (Northern): in grassy places be- ported for the first time from a dune habitat. tween village and Rousalka Resort, with flowers and young fruits, 9.05. 1997, PJ-20, SC, SOM Salvia verbenaca L. 155353. Black Sea Coast (Southern): in sandy places to the A rare species in the Red Data Book of PR Bulgaria north of Primorsko village, along the road to Perla (Kozhuharov 1984) known from the Black Sea Coast locality, at 5 m, 02.05.2002, NG-67, 42°16′47″ N, (Southern), Mt Strandzha, Strouma River Valley 27°45′07″ E, SC, SOM 157932. The population num- (Southern), Thracian Lowland, Toundzha Hilly bered about 70 plants. Country (Kozhuharov 1992b), Eastern Rhodopes Mt Strandzha: in a forest glade westwards of the (Dimitrov & Pavlova 2000) and West Frontier Mts road to Ahtopol town – Veleka River, 18.05.1994, NG- (Dimitrov & Sidjimova 2003). 75, SC, SOM 158914. A new species for the flora of the Northern Black These are new floristic regions for the species en- Sea Coast. tered in the Red Data Book of PR Bulgaria as rare (Koeva 1984). It is so far known from the regions of Viola canina L. subsp. canina. the Danubian Plain, Forebalkan, Thracian Lowland, Black Sea Coast (Southern): in an oak forest to the Eastern Rhodopes and Toundzha Hilly Country north of village, at an altitude of 50 m, with (Assyov & al. 2002). The newly identified localities flowers, 22.03.1994, NG-84, SC, SOM 159576. were at a lower altitude than the one so far reported A new species for the Black Sea Coast (Southern). for the species. According to Delipavlov (1979) and Anchev (1992), Phytol. Balcan. 10(2-3) • Sofia • 2004 205

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