Burmeistera nigropilosa J.L. Luteyn ex Garzón & F.González, Caldasia, 2012

González, Favio, 2023, Taxonomic revision of Burmeistera (Campanulaceae-Lobelioideae) in Colombia, Phytotaxa 615 (1), pp. 1-113 : 69

36. Burmeistera nigropilosa J.L. Luteyn ex Garzón & F.González, Caldasia 34: 314. 2012.

Type:— COLOMBIA. Antioquia: Frontino, corregimiento Nutibara, región de Murrí, Alto de Cuevas , ca. 6°45´N, 75°20´W, 1500‒1880 m, 16–18 Oct 1987 (fl, fr), J. L. Luteyn, S. Sylva, A. Brant & G. Martínez 11700 (holotype: HUA!; isotypes: COL!, NY!). Figs. 17 , 18G, H .

Upright, terrestrial herbs or shrubs up to 1 m tall, occasionally slightly scandent. Stem densely hirtellous, covered by dark or hyaline indumentum. Petiole (0.5–)1.0– 2.5 cm long, densely hirtellous; blade ovate, elliptic or, rarely, narrowly obovate, (7–)8–14(–22) × (4–)5–7(–8) cm, bullate, sparsely hirtellous above, densely hirtellous with dark or hyaline trichomes beneath, base slightly asymmetric, cuneate, apex acute to acuminate, margin subentire to slightly toothed, with 20 to 40 minute (<2 mm long) teeth per side, hydathodes one or two per cm, marginal to intramarginal, secondary veins 9 to 11 per side, higher order veins reticulate, intramarginal vein lacking. Peduncle (3–) 4–6 cm long densely hirtellous, with two filiform bracteoles, 4–6 mm long each. Hypanthium subglobose, 5–7 × 5–6 mm, densely hirtellous. Calyx lobes lanceolate, (11–)13–16 × 1–3 mm, patent, hirtellous, basally spaced by sinuses 1‒2 mm wide, margin subentire or with 3 or 4 teeth per side. Corolla green-yellow externally, white-green internally, hirtellous with dark or hyaline trichomes; tube 1.1–1.5 cm long, 3–4 mm in diameter at its mid-level, slightly inflated proximally and distally, lobes ovate, falcate, apex acute, dorsal lobes 10–11 × 3–4 mm, lateral lobes 5–7 × 2–4 mm, ventral lobe 4–5 × 4 mm. Synandrium 2.1–2.6 cm long, exserted up to 5–6 mm; filament tube 1.8–2.1 cm long, glabrous; anther tube 3‒5 mm long, hirtellous, ventral anthers sparsely puberulous, barbate, with an apical tuft of white woolly trichomes up to 2 mm long. Berries globose, 0.7–1.0 × 0.7‒1.0 cm, not inflated, densely hirtellous, green.

Phenology: — Burmeistera nigropilosa sets flowers and fruits throughout most of the year.

Distribution, ecology and conservation status: — Burmeistera nigropilosa is known from the Western and Central cordilleras, in the departments of Antioquia, Chocó, Córdoba and Valle del Cauca. It occurs in the understory stratum of cloud, low montane forests, and in disturbed oak forests, at elevations between 800 and 2700 m. Following the IUCN (2022) Guidelines, this species qualifies for the Near Threatened (NT) category.

Notes: — Burmeistera nigropilosa is closely related to B. bullatifolia (see differential traits under the latter).

Additional specimens examined:— Antioquia. Frontino, road to Murrí, 15 km W of Nutibara, Alto de Cuevas , ca. 1 km S of road, 06°45´N, 76°23´W, 1850 m, 17 Oct 1987 (fl, fr), A. Brant et al. 1341 ( COL, HUA) ; Frontino, PNN Las Orquídeas, camino de la finca Guaduala al alto de Carauta , 6°30´N, 76°30´W, 1750 m, 2 Dec 1986 (fl, fr), R. Callejas et al. 3005 ( HUA, NY) ; Frontino, corregimiento de Nutibara-La Blanquita, Alto de Cuevas, finca El Palmar , 6°40´N, 76°24´W, 1970‒2080 m, 13 Feb 1991 (fl, fr), R. Callejas et al. 9857 ( HUA) ; PNN Las Orquídeas, sector Venados , 6°33´N, 76°19´W, 800 m, 3 Apr 1988 (fl, fr), A. Cogollo et al. 3016 ( JAUM) ; Frontino, corregimiento de Nutibara, vereda Alto de Cuevas , quebrada del Oso, 1900‒2000 m, 23 Apr 1991 (fl, fr), R. Fonnegra et al. 3529 ( HUA) ; Frontino, corregimiento Nutibara, Nutibara-La Blanquita road, region of Murrí , Alto de Cuevas, 6°45´N, 72°20´W, 1700‒1800, 19 Apr 1988 (fl, fr), J. L. Luteyn et al. 11992 ( HUA, MEDEL, NY), 12071 ( HUA, NY) ; Frontino, corregimiento Nutibara, Nutibara-La Blanquita road, region of Murrí , Alto de Cuevas, ca. 9‒18 km W of Nutibara, 6°45´N, 72°20´W, 1450‒2130, 6–10 Apr 1989 (fl, fr), J. L. Luteyn et al. 12469 ( HUA, NY) ; Urrao, road between Urrao and Caicedo , 18 km NE of Urrao, 6°23´N, 76°03´W, 2570 m, 27 Feb 1989 (fl), J. MacDougal et al. 4280 ( HUA) ; Salgar, Cerro Plateado, camino al Cerro Plateado , 6°01´N, 76°03´W, 1800‒2200 m, 31 Mar 2004 (fl, fr), J. Marrugo et al. 1092 ( MEDEL), 1095 ( MEDEL) ; Frontino, corregimiento Nutibara, cuenca alta del Río Cuevas , finca de Tulio Álvarez, 2000 m, 14 Jul 1987 (fl, fr), D. Sánchez et al. 1399 ( COL, MEDEL, NY) ; Frontino , corregimiento Nutibara , cuenca alta del Río Cuevas , finca de Emilio Osorio, 1780 m, 23 Sep 1987 (fl, fr), D. Sánchez et al. 1564 ( COL, MEDEL) ; Frontino , km 17 of road Nutibara-La Blanquita , region of Murrí , 06°45´N, 76°24´W, 1860 m, 3 Nov 1988 (fl), J. Zarucchi et al. 7086 ( COL). Chocó. Carretera Ansermanuevo-San José del Palmar , límite con el Valle del Cauca, Alto Galápago, 2100 m, 27 Aug 1976 (fl), E. Forero et al. 2180 ( COL) ; Emisora La Sirena, 3 km W of La Mansa at top of Cordillera Occidental , 2300‒2400 m, 16 Jan 1979 (fl), A. Gentry et al. 24199 ( COL). Córdoba. Cascada Chorrón, south of Antizales (sphalm pro Antezales), 2400‒2700 m, 25 Feb 1918 (fl), F. Pennell 4398 ( NY). Valle del Cauca. Along Cali-Buenaventura Hwy at km 29, disturbed virgin cloud forest, 3°28´N, 76°39´W, 12 Feb 1990 (fl, fr), T. Croat et al. 70507 ( CUVC) ; El Cairo, Cerro del Inglés , 2000 m, 29 May 2008 (fl), J. Garzón et al. 459 ( COL) ; El Cairo, corregimiento Boquerón, vereda Las Amarillas , Serranía de Los Paraguas , ca. 4°45´N, 76°20´W, along road to and beyond Cerro del Inglés , 17‒23 km W of El Cairo, 1750‒2050 m, 13 May 1988 (fl, fr), J. L. Luteyn et al. 12305 ( CUVC, NY) ; El Cairo, corregimiento Boquerón, vereda Las Amarillas , Serranía de Los Paraguas, Cerro del Inglés, ca. 4°45´N, 76°20´W, 2000‒2200 m, 14 May 1988 (fl), J. L. Luteyn et al. 12319 ( CUVC, NY) ; La Cumbre, vereda Chicoral Alto, above Dapa , ca. 3°39´N, 76°35´W, 1940‒2000 m, 22 Apr 1989 (fl, fr), J. L. Luteyn et al. 12617 ( CUVC, NY) ; El Cairo, corregimiento Boquerón, vereda Las Amarillas , Serranía de Los Paraguas , ca. 21‒25 km beyond El Cairo, ca. 4°45´N, 76°20´W, 1850‒2000 m, 25 Apr 1989 (fl), J. L. Luteyn et al. 12635 ( CUVC, NY) ; Cali, km 18 carretera arriba de la vía que de Cali va a Buenaventura , 1800 m, 7 Feb 1989 (fl, fr), N. Paz 160 ( CUVC) ; El Cairo, Cerro del Inglés, Cordillera Occidental , Serranía de Los Paraguas , a 1 hora en jeep de El Cairo , 2330 m, 1 Jan 1987 (fl), P. Silverstone et al. 2840 ( CUVC) ; El Cairo, Cerro del Inglés ( Cordillera Occidental , Serranía de Los Paraguas , a 1 hora en jeep de El Cairo , 2260 m, 5 Jan 1987 (fl), P. Silverstone et al. 2992 ( CUVC, NY).

Figures

FIGURE 17. Distribution of Burmeistera microphylla, B. minutiflora, B. multiflora, B. multipinnatisecta, B. mutisiana and B. nigropilosa.

FIGURE 18. A–D. Burmeistera minutiflora (González et al. 945, type), leaves and young berry (A), leaves and flower (B), flower at side (C) and frontal (D) view. E, F. B. multiflora (Luteyn et al. 10674), corymbiform flowering portion of the branch (E), and flower (F). G, H. B. nigropilosa (Luteyn et al. 11700, type), leaves and flower. I, J. B. pinnatisecta (González et al. 2859), flowering (I) and fruit-bearing (J) branches. Photo credits: A–D, M.F. González; E–H, J.L. Luteyn; I, J, F. González. Scale bars: 1 cm in A, E, G, I, J; 5 mm in B, F, H; 2 mm in C, D.