identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
039C87A68D3FFFF66E944BB7A7A02395.text	039C87A68D3FFFF66E944BB7A7A02395.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Pilosella riloensis Szelag & Vladimirov 2025	<div><p>Pilosella riloensis Szeląg &amp; Vladimirov, sp. nov. (Figs. 1–2)</p><p>Type: ― BULGARIA. Rila Mountains, Ribnite ezera glacial valley, grassy places between loose Pinus mugo thickets, ca 150 m west of the hut, 2250 m a.s.l., 13 August 2019, Z. Szeląg (holotype KRAM; isotypes SOM, Herb. Hierac. Z. Szeląg) .</p><p>Paratypes: ― BULGARIA. Rila Mountains, along a tourist road from Yastrebets hut to Musala hut, grassy places amongst thickets of Pinus mugo, 2330 m a.s.l., 3 August 2018, V. Vladimirov &amp; Z. Szeląg (SOM, Herb. Hierac. Z. Szeląg).</p><p>Description: ―Phyllopodous. Monocephalous, or with two capitula on erect peduncles up to 15 cm long. Stolons absent. Stem up to 20–25 cm high, in the lower third with dense stellate hairs, and sparse, pale trichomes up to 10 mm long; in middle part with dense stellate hairs, scattered, black in the lower half trichomes up to 5 mm long, and few black glandular hairs 0.2–0.4 mm long; in the upper third with dense stellate hairs, numerous black (with grey apex) simple trichomes up to 8 mm long, and scattered black glandular hairs 0.3–0.5 mm long. Peduncles with dense stellate hairs, numerous, dark grey, simple trichomes up to 8 mm long, and numerous to dense black glandular hairs 0.3–0.5 mm long. Rosette leaves 5–10, up to 12 cm long and up to 1.5 cm wide, lanceolate, entire, subacute at apex (the outer leaves shorter and rounded at apex); on upper surface pale green with numerous pale, simple trichomes 4–5 mm long, and sparse to scattered stellate hairs; on lower surface with protruding pale midrib, and with dense stellate hairs, only on margins and occasionally on midrib with sparse pale, simple trichomes 2–3 mm long. Cauline leaves usually two, up to 4 cm long and up to 0.5 cm wide, lanceolate, sessile, acute at apex, with an indumentum like the rosette leaves. Involucres 10–11 mm long and 10–12 mm wide, globose at base, with very dense indumentum. Involucral bracts acute at apex, up to 1.8 mm wide at base, with dense, dark grey, black-based simple trichomes 5–7 mm long, dense stellate hairs, and scattered dark glandular hairs 0.3 mm long. Ligules yellow, with or without pale red stripes, flat, glabrous at apex. Styles pure yellow. Achenes light brown, 1.8–2.2 mm long. Pappus white. Pollen absent. Flowering: August.</p><p>Ploidy level and mode of reproduction: ―2n ~ 3x ~ 27, agamospermous.</p><p>Distribution and habitats: ―Endemic to the Rila Mountains, currently known from two localities in the core of the mountains but additional localities are to be expected. In 2019, its population in the type locality comprised more than two hundred flowering plants growing in a few clusters, on grassy places amongst the loose thickets of Pinus mugo, at 2250–2270 m a.s.l. (Fig. 3). In 2018, the second population of Pilosella riloensis along a tourist road from Yastrebets hut to Musala hut seemed to be slightly smaller.</p><p>Affinity: ― Pilosella riloensis is triploid whereas its supposed parental species P. kalinensis and P. sericochrota are diploids (Pavlova 1999; Vladimirov &amp; Szeląg 2001; Szeląg &amp; Vladimirov 2025). The intermediate morphological position of P. riloensis is summarized as follows:</p><p>Nomenclatural changes: ― Pilosella pseudopilosella (Tenore) Soják (1971: 217), originally described as Hieracium pseudopilosella (Tenore 1811 –1815 [suppl. 2]: 71), is the collective species which comprises 8 subspecies in the Mediterranean area (Zahn 1923). The nominal taxon occurs in Italy. In Bulgaria, it is represented by H. pseudopilosella subsp. sericochrotum Zahn in Ascherson &amp; Graebner (1922: 60), characterized by long, thin stolons and dense glandular hairs on peduncles. As this name is unavailable in the genus Pilosella Hill (1756: 441), following the accepted taxonomic concept to recognize Hieracium Linnaeus (1753: 799) and Pilosella as separate genera (Schultz &amp; Schultz-Bipontinus 1862; Schou 2001; Tyler 2001; Sennikov 2003), we propose a new generic combination, also elevating Hieracium pseudopilosella subsp. sericochrotum to species rank within Pilosella . The name is lectotypified from specimens collected by Johan Wagner in the Rila Mountains and examined by Zahn (1922).</p></div>	https://treatment.plazi.org/id/039C87A68D3FFFF66E944BB7A7A02395	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Szeląg, Zbigniew;Vladimirov, Vladimir	Szeląg, Zbigniew, Vladimirov, Vladimir (2025): Pilosella riloensis (Asteraceae), a new hybridogenous species and nomenclatural notes on P. pseudopilosella in Bulgaria. Phytotaxa 704 (2): 203-207, DOI: 10.11646/phytotaxa.704.2.8, URL: https://doi.org/10.11646/phytotaxa.704.2.8
039C87A68D3DFFF76E9448C6A7B62157.text	039C87A68D3DFFF76E9448C6A7B62157.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Pilosella sericochrota (Zahn) Szelag & Vladimirov	<div><p>Pilosella sericochrota (Zahn) Szeląg &amp; Vladimirov, stat. et comb. nov.</p><p>Basionym:― Hieracium pseudopilosella subsp. sericochrotum Zahn in Ascherson &amp; Graebner (1922: 60).</p><p>Type:― BULGARIA. Plantae Rumeliae orientalis, exssicatae curante Dre de Degen. In graminosis regionis alpinis vallis Maritzae superioris sub monte Musala, Rhodopes centralis, 30.07.1892, J. Wagner (lectotype BRNM 10983/36, designated here).</p><p>Distribution and habitats: ― Pilosella sericochrota is a high-mountain species and prefers habitats on siliceous (mainly granite) bedrock, above 2000 m a.s.l., and is frequent in the Pirin Mountains and Rila Mountains. It is likely that P. sericochrota is endemic to Bulgaria because its occurrence in thermophilous vegetation on Mt. Chortiatis (Χορτιάτης) (only 1201 m a.s.l.) near Thessaloniki in Greece as reported by Zahn (1923) seems very unlikely. Furthermore, this locality is attributed to Imre Friváldszky, an eminent Hungarian entomologist, who organized the expeditions to the Balkan Peninsula but did not participate in these expeditions himself (cf. Szeląg &amp; Somlyay 2009).</p></div>	https://treatment.plazi.org/id/039C87A68D3DFFF76E9448C6A7B62157	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Szeląg, Zbigniew;Vladimirov, Vladimir	Szeląg, Zbigniew, Vladimirov, Vladimir (2025): Pilosella riloensis (Asteraceae), a new hybridogenous species and nomenclatural notes on P. pseudopilosella in Bulgaria. Phytotaxa 704 (2): 203-207, DOI: 10.11646/phytotaxa.704.2.8, URL: https://doi.org/10.11646/phytotaxa.704.2.8
