Taxonomic revision of Burmeistera (Campanulaceae-Lobelioideae) in Colombia Author González, Favio 0000-0001-5716-9278 Universidad Nacional de Colombia, Facultad de Ciencias, Instituto de Ciencias Naturales, Sede Bogotá fagonzalezg @ unal. edu. co; https: // orcid. org / 0000 - 0001 - 5716 - 9278 fagonzalezg@unal.edu.co text Phytotaxa 2023 2023-09-19 615 1 1 113 http://dx.doi.org/10.11646/phytotaxa.615.1.1 journal article 10.11646/phytotaxa.615.1.1 1179-3163 8389205 28. Burmeistera longifolia Gleason, Bull. Torrey Bot. Club 52: 97. 1925 . Type :— COLOMBIA . Córdoba : “In silva prope cascada Chorron, ad meridiem Antizalez”, 7–11 Feb 1922 (fl), 2400‒2700 m , F . Pennell 4399 ( holotype : NY ! [ NY00467995 ]). Figs. 13F–G , 14 . Subshrubs up to 2 m tall. Stem puberulous. Petiole 5–8 mm long, puberulous; blade narrowly ovate, 6–11 × 1.8–3.6 cm , not falcate, glabrescent above, puberulous beneath, base cuneate to obtuse, apex acuminate, margin subentire to slightly toothed, with 1 or 2 marginal or slightly extramarginal hydathodes per cm, evenly distributed mainly along the distal half, secondary veins 6 or 7 pairs, intramarginal vein lacking. Subtending leaves reduced to 2.8 cm long. Peduncle 5–7 cm , glabrous, ebracteolate. Hypanthium obconic, 5–8 × 4–5 mm , puberulous. Calyx lobes oblong, 1.5–3.5 × 1–2 mm , patent to ascending, puberulous, basally spaced by sinuses 0.8‒1.2 mm wide, margin with one or two crenations per side, apex obtuse. Corolla yellowish-green, puberulous; tube 15–20 mm long, 3‒4 mm diameter at its mid-level, slightly inflated proximally; lobes oblong to broadly ovate, falcate, dorsal lobes 12–13 × 3.8–4.0 mm, lateral lobes 7.6–8.0 × 5–6 mm , ventral lobe 7.6–8.0 × 3.0– 3.2 mm . Synandrium 3.6–4.1 cm long, exserted up to 2 cm ; filament tube 3.2–3.6 cm long, glabrescent; anther tube 4–5 mm long, sparsely puberulous at sutures, apex evenly villous, including the ebarbate ventral anthers. Berries subglobose, 2–3 × 1.5–2.6 cm , glabrous, greenish. Phenology: — Burmeistera longifolia has been collected with flowers and fruits in February, March, April, July, September and December. Distribution, ecology and conservation status: — Burmeistera longifolia is restricted to few localities of the northern ridges of the Western and Central cordilleras of Colombia , in the departments of Antioquia and Córdoba , at elevations between 1700 and 2700 m . Following the IUCN´s (2022) criteria [B1(EOO) and B2(AOO), conditions (a) and (b), and C2(a)(i)], B. longifolia qualifies as Critically Endangered. Note: — Burmeistera longifolia is similar to B. betancurii (see distinctive traits under the latter). Additional specimens examined:— Antioquia . Guatapé , vereda Santa Rita, 1850 m, 6 Dec 1984 (fl, fr), L . Albert et al. 4935 ( HUA ); Guatapé , vereda Santa Rita, 1850 m, 14 Mar 1985 (fl, fr), L . Albert et al. 4974 ( HUA ); Guatapé , vereda Santa Rita, 1850 m, 25 Apr 1985 (fl, fr), L . Albert et al. 5078 ( HUA ); Frontino , 2 km adelante del aeropuerto, 1700 m , 9 Jul 1984 (fl, fr), G . Lozano et al. 3956 ( COL ); Frontino , km 17 of road Nutibara-Murrí , 06°45´N , 76°24´W , 1750 m , 24 Sep 1987 (fl, fr), J . Zarucchi et al. 5727 ( HUA ) .