Swertia patnitopiansis, a new species of Gentianaceae from North-Western Himalaya, India Author Singh, Bikarma text Phytotaxa 2021 2021-05-05 498 4 273 280 http://dx.doi.org/10.11646/phytotaxa.498.4.5 journal article 4441 10.11646/phytotaxa.498.4.5 29631e62-f1ea-4d49-b249-147251696b97 1179-3163 5424347 Swertia patnitopiansis Bikarma Singh , sp. nov . ( Figs. 1–3 ) Diagnosis The new species shows some morphological similarities with S. cordata , but differs from the later by its biennial habit (vs. annual), plant height 10–20 cm (vs. 30–70 cm ), 1 or 2 branches (vs. 8–25), leaf base rounded, obtuse or cuneate, 4–12 × 3–10 mm (vs. base cordate, 14–56 × 8–33 mm ), 3–6 flowered inflorescence (vs. 8–12 flowered), 4–5 mm diam. pure white flowers (vs. 7–10 mm diam. yellowish-white), nectaries globose, fimbriate (vs. orbicular or rhomboid, membranous dentate) and polyhedral seeds with minutely thorny seed coats (vs. ellipsoid to globose, winged) ( Table1 ). Type: — INDIA . Himalaya Region : Jammu and Kashmir UT, Jammu Province , Udhampur District , Patnitop Hill proper, 33.08°N , 75.33°E , elev. 2202 m , 16 October 2014 , Bikarma Singh 52757 ( holotype : RRLH!, isotype RRLH!) .