taxonID	type	description	language	source
E649D304FFE8FF8CFF50C292FB79EC9F.taxon	discussion	The new species is related to D. paucijugum, D. aromaticum, and D. chryseum and differs from them in the stem height, shape, and diameter, branching, shape of the terminal leaf lobes, shape of the bracteoles, shape and size of the mericarps, and shape of the stylopodium.	en	Lyskov, Dmitry, Zarre, Shahin, Samigullin, Tahir, Kljuykov, Eugene (2021): Dichoropetalum viarium (Apiaceae), a new species from Lorestan Province, Western Iran. Phytotaxa 525 (1): 15-25, DOI: 10.11646/phytotaxa.525.1.2
E649D304FFE8FF8CFF50C292FB79EC9F.taxon	materials_examined	Type: — IRAN. Lorestan Province: 2 km NE from Sepid Dasht, rocky outcrops, alt. 1200 m, 33.226967 ° N, 48.917366 ° E, 18 June 2018, Lyskov 115 - IR- 18 (MW, holotype mounted on 2 cross-labelled sheets barcodes: MW 0595736, MW 0595738).	en	Lyskov, Dmitry, Zarre, Shahin, Samigullin, Tahir, Kljuykov, Eugene (2021): Dichoropetalum viarium (Apiaceae), a new species from Lorestan Province, Western Iran. Phytotaxa 525 (1): 15-25, DOI: 10.11646/phytotaxa.525.1.2
E649D304FFE8FF8CFF50C292FB79EC9F.taxon	description	Perennial monocarpic herbaceous plant with vertical taproot 15 – 20 mm ∅, glabrous, green-brownish (Figs. 2 – 3, 5). Stems 80 – 130 cm, 7 – 15 mm ∅ at base, solitary, erect, solid, covered with soft remains of sheaths and older leaves, rounded at base, slightly angular, in middle part slightly grooved, in upper part rounded, branched from base, foliaceous; internodes short, their number up to 15. Inflorescence patulent, paniculate, branches in upper part approximate or opposite, lateral branches exceeding central umbel. Basal leaves multiple, petioles up to 4.5 cm, flattened, sheath narrow; leaf blades 11 – 15 cm long 3 – 4 cm wide lanceolate of linear-lanceolate, bipinnate, primary segments sessile, rhombic in outline, coarsely toothed, cuneate at base; terminal lobes 4 – 7 mm long, obovate or lanceolate, cuneate at base, notched on top. Cauline leaves simplified, pinnate, with linear-lanceolate or lanceolate lobes 1 – 1.5 cm long; uppermost leaves with simple linear leaf blades. Central umbel slightly larger than lateral umbels, 7 – 9 cm ∅, 5 – 8 - rayed; rays spaced, tiny, slightly unequal, 3.5 – 5 cm long, bracts missing. Umbellules with 13 – 15 flowers, peduncles slightly unequal and thickened, nearly orbicular, 2 – 3.5 mm long. Number of bracteoles 4 – 6, linear-lanceolate, in upper part narrowed, glabrous, herbaceous, green-brownish. Mericarps homomorphic (Fig. 4), strongly dorsally compressed, 5.5 – 6.5 (7) mm long, 2.5 – 3.5 mm wide, elongate-elliptic, only primary ribs present; ribs unequal, marginal ribs thickened, enlarged, dorsal ribs filiform, all ribs with straight, entire margins. Calyx teeth missing, carpophore bifurcated to base, stylopodia low conical, lobate, styles decurved, about 1 mm long; commissure broad; secretory ducts between ribs solitary, number of commissural secretory ducts 3 – 4, sometimes these ducts obscure; endosperm flat at commissural side.	en	Lyskov, Dmitry, Zarre, Shahin, Samigullin, Tahir, Kljuykov, Eugene (2021): Dichoropetalum viarium (Apiaceae), a new species from Lorestan Province, Western Iran. Phytotaxa 525 (1): 15-25, DOI: 10.11646/phytotaxa.525.1.2
E649D304FFE8FF8CFF50C292FB79EC9F.taxon	materials_examined	Paratypes:  IRAN, Lorestan Province, 1 km N from Sepid Dasht, dry rocky slope, alt. 1000, 33.226269 ° N, 48.886078 ° E, 30 June 2019, Lyskov 34 - IR- 19 (TARI); Lorestan Province: 4 km NEE from Sepid Dasht, dry rocks, alt. 1300, 33.226685 ° N, 48.919480 ° E, 30 June 2019, Lyskov 166 - IR- 19 (MW barcode MW 0595735).	en	Lyskov, Dmitry, Zarre, Shahin, Samigullin, Tahir, Kljuykov, Eugene (2021): Dichoropetalum viarium (Apiaceae), a new species from Lorestan Province, Western Iran. Phytotaxa 525 (1): 15-25, DOI: 10.11646/phytotaxa.525.1.2
E649D304FFE8FF8CFF50C292FB79EC9F.taxon	etymology	Etymology: — The specific epithet refers to a place where the new species was found, the rocky outcrops above the road.	en	Lyskov, Dmitry, Zarre, Shahin, Samigullin, Tahir, Kljuykov, Eugene (2021): Dichoropetalum viarium (Apiaceae), a new species from Lorestan Province, Western Iran. Phytotaxa 525 (1): 15-25, DOI: 10.11646/phytotaxa.525.1.2
E649D304FFE8FF8CFF50C292FB79EC9F.taxon	biology_ecology	Phenology: — Flowering probably in May and June; fruiting in June and July.	en	Lyskov, Dmitry, Zarre, Shahin, Samigullin, Tahir, Kljuykov, Eugene (2021): Dichoropetalum viarium (Apiaceae), a new species from Lorestan Province, Western Iran. Phytotaxa 525 (1): 15-25, DOI: 10.11646/phytotaxa.525.1.2
E649D304FFE8FF8CFF50C292FB79EC9F.taxon	distribution	Distribution: — The species is only known from the type locality in Iran, Lorestan Province.	en	Lyskov, Dmitry, Zarre, Shahin, Samigullin, Tahir, Kljuykov, Eugene (2021): Dichoropetalum viarium (Apiaceae), a new species from Lorestan Province, Western Iran. Phytotaxa 525 (1): 15-25, DOI: 10.11646/phytotaxa.525.1.2
