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 23. Burmeistera hippobromoides Lammers, Novon 12: 210. 2002 . Type :— COLOMBIA . Valle del Cauca : Yatacué , campamento CVC en Anchicayá , 03°40´N , 76°50´W , selva húmeda premontana madura, 700‒900 m , 25 Feb 1983 (fl, fr), A . Gentry, A . Juncosa & F . Gómez 40746 ( holotype : MO ! [ MO277258 ]; isotype: COL ! [ COL000062123 ]). Figs. 13A–D , 14 . Upright herbs or shrubs up to 2 m tall. Stem puberulous. Petiole 1.0– 2.5 cm long, puberulous; blade obovate to narrowly obovate, 12–20 (–25) × 3.8–6.0 (–11.0) cm, glabrous above, puberulous beneath, base attenuated, symmetric, apex acute, margin subentire to slightly crenate, with 1 or 2 intramarginal hydathodes per centimeter, secondary veins 10 to 14 per side, intramarginal vein present. Peduncle 3.5–9.5 cm long, glabrous to sparsely puberulous, ebracteolate. Hypanthium obconic, 8–9 × 5–6 mm , puberulous. Calyx lobes narrowly to very narrowly ovate, 9–16 × 2–4 mm , ascending, puberulous, basally spaced by sinuses 1 mm wide, margin entire, with 2 to 4 marginal teeth per side, apex rounded to acute. Corolla uniformly green, finely puberulous; tube 6.0– 6.7 cm long, ca. 5 mm basal and mid-level diameter, not inflated; lobes falcate, oblong-triangular, apex acuminate, dorsal lobes 20–25 × 4–5 mm , lateral lobes 15–18 × 3–4 mm , ventral lobe 10–12 × 4–5 mm . Synandrium 6.5–8.6 cm long, exserted up to 1.2 cm ; filament tube 6.0– 7.7 cm long, glabrescent; anther tube 5–9 mm long, glabrous, ventral anthers barbate, with an apical tuft of trichomes up to 2 mm long. Berries globose, 1.0– 1.2 cm diameter, crowned by the persistent calyx lobes. Phenology: — Burmeistera hippobromoides sets flowers and fruits in February, July and December. Distribution, ecology and conservation status: — Burmeistera hippobromoides is endemic to the western slopes of the Colombian Western Cordillera, in the department of Valle del Cauca . The species occurs in rain forests at elevations between 400 and 900 m . Following the IUCN´s (2022) criteria [B1(EOO) and B2(AOO), conditions (a) and (b), and C2(a)(i)], it qualifies as Critically Endangered, due to its limited range of distribution, its low number of individuals, and the severe destruction of its habitat. Notes: — Burmeistera hippobromoides is easily recognizable by its corolla tube not inflated, narrow and straight, 8.6–9.2 cm long, 2 to 3 times longer than in any other species of the genus. Additional specimens examined:— Valle del Cauca . Río Anchicayá , cerca de la planta hidroeléctrica, Yatacué , campamento CVC en Anchicayá , 400‒500 m , 15 Dec 1981 (fl), A . Gentry 35676 ( COL ); Yatacué , Alto Anchicayá , near CVC hydroelectric plant, headquarters valle of Río Dagua (tributary of Anchicayá), ca 3°38´N , 76°45´W , 710‒ 880 m , 17 Jul 1984 (fr), A . Gentry et al. 48262 ( CUVC ) .