Bolanthus turcicus Koç & Hamzaoğlu, PhytoKeys

Yildizbaş, Avni & Koç, Murat, 2025, The taxonomic revision of genus Bolanthus (Caryophyllaceae) in Türkiye, Phytotaxa 696 (1), pp. 28-54 : 46

Bolanthus turcicus Koç & Hamzaoğlu, PhytoKeys 52: 82 (2015) .

Type:— [ Turkey B4 Aksaray] Aksaray province, Hasan Mountain above Karkın town, 1950 m, volcanic stony slopes and alpine steppe, 18 July 2014, Hamzaoğlu 7110 & Koç (holotype GAZI!; isotypes: GAZI!, ANK!, Dept of Bozok Univ. !) .

Description ( Figs. 12–13 ): — Perennial herbs. Stems prostrate, 1–8, 9–18 cm, base 0.8–1.2 mm diameter, loose branched, dense mixed eglandular and glandular hairs, nodes 5–9, internodes 5–10 mm. Leaves linear, 5–8 × 0.5–0.7 mm, dense mixed eglandular and glandular hairs, prominent 3-nerved, greenish, not adpressed to stem; terminal acute; sheaths membrabous, 1–1.3 mm, dense mixed eglandular and glandular hairs. Inflorescence in apex and side loose clusters, dense mixed eglandular and glandular hairs; flowers pedicellate, in each clusters 5–10. Bracts subulate, 3–5 × 0.7–0.9 mm, almost as long as inflorescence, dense mixed eglandular and glandular hairs; margins membranous, ciliate, ciliates 0.1–0.15 mm; terminal acute. Pedicels 1–2 mm, dense mixed eglandular and glandular hairs. Calyx tubulate, dense mixed eglandular and glandular hairs, 3.5–4.5 × 0.8–1.2 mm; calyx teeth narrowly triangular, 1–1.5 mm tall, margins ciliate, terminal acute. Petals oblanceolate, 3.3–4.5 × 0.8–1.2 mm, almost as long as sepals, limb white, petal nerves dark pink; terminal emarginate; base cuneate. Stamens 10, filament 3.5–4.5 mm tall. Styles 2, 4–5 mm tall. Capsule oblong, 4–4.5 × 1–1.4 mm, 2–4-seeded, usually as much as sepals. Seeds comma shaped 0.8–1.1 × 0.6–0.8 mm, brown, side and ridge surface, granular.

Phenology: June–July, 1950–2760 m, volcanic stony slopes.

General Distribution: Endemic. Irano-Turanian element.

Distribution for Türkiye: Central Anatolia region.

Notes:— The taxon was firstly defined with the name Bolanthus turcicus by Koç and Hamzaoğlu in 2015 ( Koç & Hamzaoğlu 2015). Unlike the other taxa of Bolanthus which are distributed generally in the Mediterranean region, the taxon is distributed in the Central Anatolian Region and grows on volcanic soils. The taxon differes from the other taxa of the Bolanthus in terms of having long internodes, loose, creeping stem structure, petals rearly exceesing the sepals and bracts surrounding the calyx. Also it has been recommended to be placed in the EN B1a category ( IUCN 2017). Its distribution in Türkiye was given in Figure 13 .

Specimens examined: — TÜRKİYE. B4 Aksaray: above Karkın village, Hasan mountain, around Karbeyaz hotel, subalpine step, 38˚09ˈ39” N, 34˚09ˈ 53” E, 1950m, 18 July 2014, Hamzaoğlu 7110 & Koç (Bozok Univ. Herb.) ; Aksaray: Karkın town, above Karbeyaz hotel, south of Hasan mountain , 2760 m, 07 August 2015, Koç 2226 & Hamzaoğlu (Bozok Univ. Herb.) .

Figures

FIGURE 12. Bolanthus turcicus (Koç 2226 & Hamzaoğlu).A—habit, B—inflorescence, C—flower, D—petal, E—capsule.

FIGURE 13. Distribution of taxa B. huber-morathii (D), B. mevlanae (●) and B. turcicus (■) in Türkiye.