22. Burmeistera glabrata (Kunth) Hook. f. ex B. D. Jacks., Index Kew. 1: 361. 1893.

Lobelia glabrata Kunth, Nov. Gen. Spec. 3: 307, tab. 270. 1818. Siphocampylus glabratus (Kunth) G. Don, Gen. Syst. 3: 702. 1834. Centropogon glabratus (Kunth) Planch. & Oerst., Vindensk. Meddel. Dansk Naturth. Foren. 1857: 157 . 1857. Type:— COLOMBIA. Cundinamarca: “Crescit prope Santa Fe de Bogota, 1360 hex.”, Bonpland s.n. (holotype: P! [P00671027]). Figs. 10L–O, 12.

Herbs to upright shrubs up to 5 m tall. Stem glabrous except for the young parts that are puberulous. Petiole 1.3–3 cm long, glabrous to glabrescent; blade elliptic to sometimes obovate or oblong, (6.0–)8.5–16.0(–19.0) × 2.5–7.0 cm, glabrescent above, glabrescent or puberulous especially along the veins beneath, base cuneate to rounded, often asymmetric, apex acute to acuminate, margin subentire to slightly toothed, with 1 to 4 extramarginal hydathodes per cm, these more pronounced in the distal half, secondary veins 6 to 10 per side, intramarginal vein present, discontinuous. Peduncle (5–) 6–14 cm long, glabrous, ebracteolate. Hypanthium subglobose to urceolate, 5.0–8.5 × 5–8 mm, glabrous to sparsely puberulous. Calyx lobes ovate to elliptic (length:width ratio 2:1 to 3:1), 10–18 × 4–12 mm, ascending, glabrous, basally spaced by sinuses up to 1 mm wide, margin subentire, with 3 or 4 marginal teeth per side, apex obtuse. Corolla green, occasionally suffused with purple, glabrescent; tube 1.0– 1.7 cm long, 3–5 mm in diameter at its mid-level and distal diameter, inflated proximally; lobes oblong-triangular, falcate, apex obtuse to shortly acuminate; dorsal lobes 12–14 × 2.8–3.1 mm, lateral lobes 8–12 × 5.0– 5.2 mm, ventral lobe 7–10 × 6.8–7.1 mm. Synandrium 2.1–3.0 cm long, exserted up to 1.8 cm; filament tube 1.7–2.2 cm long, puberulous or sometimes glabrescent in post-anthesis; anther tube 4.5–8.0 mm long, sparsely villous at the apex, ventral anthers barbate, with a loose tuft of white, villous trichomes at pre-anthesis, ebarbate at anthesis. Berries globose to ovoid, 1.5–3.5 × 1.5–2.5 cm, inflated, glabrescent, yellowish-green to white suffused with purple.

Phenology: — Burmeistera glabrata sets flowers and fruits throughout the year.

Distribution, ecology and conservation status: — Burmeistera glabrata occurs in the Andes of Colombia and N Ecuador (Carchi and Esmeraldas). In Colombia, the species inhabits edges of cloud forests at elevations between 1300 and 3200 in the Eastern Cordillera (departments of Boyacá, Caquetá, Cundinamarca and Meta), and the southern Andes (departments of Cauca, Huila, Nariño and Putumayo). Following the IUCN (2022) Guidelines, this species qualifies for the Near Threatened (NT) category.

Notes: — Burmeistera glabrata is similar to B. pomifera and B. tomentosa, from which it differs by the glabrous peduncle, the glabrescent corolla, and the synandrium exserted up to 1.8 cm (versus the glabrescent to puberulous peduncle, the hirtellous or puberulous (rarely glabrescent) corolla, and the synandrium exserted up to 1.2 and 1.5 cm in the remaining two species, respectively).

Vernacular name: —“Tapaculo” (Tipaz et al. 1039).

Additional specimens examined:— Boyacá. Cordillera Oriental, vertiente oriental, hoya del río Cusiana, debajo de Vado Hondo, km 302, sitio La Sabana, 2000 m, 24–28 Feb 1954 (fl, fr), J. Idrobo et al. 1593 (COL) ; Arcabuco, quebrada Chorro Grande on north side of Arcabuco range along road between Duitama and Charalá, c 2730 m, 29 Aug 1953 (fr), J. Langenheim 3615 (COL). Caquetá. Belén de los Andaquíes, camino Andaquí, 1°42´38.8´´N, 75°54´5´´W, 1500–1800 m, 8 Mar 2016 (fl, fr), N. Castaño et al. 7438 (COAH) ; Cordillera Oriental, vertiente oriental, quebrada del Río Hacha, debajo de Gabinete, 2100‒2250 m, 23 Mar 1940, J. Cuatrecasas 8567 A (COL). Cauca. Santa Rosa, San Juan de Villalobos, San Juan, 1°29´50.81´´N, 76°22´34.28´´W, 1670 m, 09 Dec 2018 (fl, fr), L. León et al. 358 (COL). Cundinamarca. SW of Sibaté and San Miguel, between km 33‒34, 2700 m, 27 Apr 1972 (fl, fr), F. Barclay et al. 3350 (COL) ; Gutiérrez, vereda El Cedral, 4°16´29.2´´‒ 4°16´40.3´´N, 74°0´32.89´´‒ 74°0´35.1´´W, 2653‒2673 m, 18 Jan 2017 (fl), C. Garzón et al. 12 (COL); Sibaté, Alto de San Miguel, El Peñón, ca. 2700 m, 14 Sep 2010 (fl, fr), F. González et al. 4366 (COL) ; Muchindote valley, east side of Quebrada Negra, 13 km N of Gachetá, 2800 m, 4 Jul 1944 (fl), M. Grant 9597 (COL, NY) ; Sibaté, Alto de San Miguel, 2700 m, 20 Jul 1965 (fr), G. Huertas et al. 6210 (COL) ; Núñez, 2450 m, 16 Nov 1988 (fl, fr), E. Linares et al. 2665 (COL) ; Cabrera, vereda Núñez, 2400‒2500 m, 21 Aug 1985 (fl, fr), G. Morales et al. 417 (COL) ; San Francisco, hacienda “La Laja”, finca de D. Rivera, 2790 m, 30 Jan 2005, C. Parra et al. 659 (COL) ; El Peñón, SW of Sibaté, 2800‒2900 m, 13 Oct 1917 (fl, fr), F. Pennell 2392 (NY, Y) ; Junín, Reserva Ecológica Carpanta, A. Repizzo et al. 180 (COL) ; San Miguel, 2800 m, 11 Oct 1948 (fl, fr), M. Schneider 668 (COL) ; Gutiérrez, 2700‒2800 m, 2 Apr 1950 (fl), M. Schneider 951 (S); “neihe Bogota, bei San Francisco”, 25 Nov 1964 (fl), “ Herb. W. Schwabe” s.n. (B); Alto de San Miguel, along road SW of Sibaté toward Fusagasugá, between carretera km 19‒24, ca. 4º35´N, 74º20´W´, 2300‒2450 m, 4 Jun 1986 (fl, fr), B. Stein et al. 3138 (NY) ; Bojacá, vereda de San Antonio, “La Merced”, 2600‒2700 m, 19 Mar 1964 (fl, fr), J. Torres et al. 73 (COL) ; sur de Santandercito, laguna de Catarnica, 2000 m, 13 Sep 1958 (fl, fr), L. Uribe 3200 (COL, NY) ; . Huila. Trail from Finca Meremberg to Paramillo Arrabal, Finca La Candelaria, 2370 m, W of Volcán Puracé, 2°16´N, 76°15´W, 4 Apr 1986 (fl, fr), A. Gentry et al. 54019 (CUVC) ; San José de Isnos, vereda El Mármol, Parque Natural Nacional de Puracé, 2600 m, 21 Jul 1980 (fl, fr), G. Lozano 3310 (COL) ; San José de Isnos, vereda El Mármol, Parque Natural Nacional de Puracé, 2800 m, 24 Jul 1980 (fl, fr), G. Lozano 3427 (COL) ; Cerro de Paramillo, 2500 m, 12 Oct 1993 (fr), C. Orozco et al. 2788 (COL). Meta. El Calvario, Inspección de Polícía San Francisco, vereda San Isidro, 2400 m, 7 Mar 1981 (fl), L. Camargo et al. 7940 (COL) ; Quetame, inspección de policía de Guayabetal, carretera al Calvario, 2000‒2450 m, 11 Jun 1979 (fl, fr), G. Lozano 4053 (COL). Nariño. Puerres, ca. estación de rebombeo de Ecopetrol, 2900‒3200 m, 1–3 Mar 2011 (fl, fr), J. Garzón et al. 509 (COL). Putumayo. Valle de Sibundoy, NW Sibundoy, 2500 m, 5 Nov 1962 (fl, fr), M. Bristol 334 (AMES, COL, GH); Valle del Sibundoy, 2.5 km SE Colón, 2200 m, 16 Jul 1963 (fl, fr), M. Bristol 1222 (GH) ; Mocoa, 23 May 1935 (fl, fr), H. García 4619 (COL).