Burmeistera killipii Gleason, Bull. Torrey Bot.

González, Favio, 2023, Taxonomic revision of Burmeistera (Campanulaceae-Lobelioideae) in Colombia, Phytotaxa 615 (1), pp. 1-113 : 58

26. Burmeistera killipii Gleason, Bull. Torrey Bot. Club 52: 99. 1925.

Type:— COLOMBIA. Cauca: La Gallera, Micay valley , 2200‒2500 m, 01 Jul 1922 (fl), E. Killip 7980 (holotype: NY! [ NY00467994 ]; isotypes: GH! [ GH00033085 ], PH! [ PH 00010888], US! [ US 00146944]). Figs. 14 , 15F .

Climbing herbs up to 1.2 m tall. Stem hispidous-strigose. Petiole 2–11 mm long, hispidous-strigose; blade broadly ovate, 2.0–4.6 × 1.7–3.5 cm, bullate, glabrous, usually strigose and with venation imprinted above, puberulous along venation beneath, base slightly cordate, apex obtuse or sometimes acute to acuminate, margin subentire, serrulate, with 1 or 2 marginal or extramarginal hydathodes per cm, secondary veins 4 to 6 per side, impressed above, prominent beneath, intramarginal vein lacking. Peduncle 2.3–5.0 cm long, glabrous to hispidous-strigose, ebracteolate. Hypanthium globose to campanulate, 4–7 × 4–5 mm, hispidous-strigose, usually warty. Calyx lobes narrowly ovate, 4–7 × 1.5–2.5 mm, strongly reflexed, glabrous, warty on both sides, margin subentire, apex acute to obtuse. Corolla green suffused with purple, glabrous, usually warty above and beneath; tube 1.2–1.8 cm long, 3–4 mm diameter at its mid- and distal portion, slightly inflated proximally; lobes ovate, slightly falcate, apex acuminate, dorsal lobes 11–15 × 5‒6 mm, lateral lobes 10–14 × 4–7 mm, ventral lobe 8–10 × 5–6 mm. Synandrium 4.2–5.0 cm long, exserted up to 3 cm; filament tube 3.8–4.5 cm long, glabrous, warty; anther tube 4–5 mm long, usually warty, glabrous, ventral anthers barbate during pre-anthesis, later ebarbate. Berries obovoid to oblate, 1.2–1.5 × 1.2–1.8 cm, glabrous, not inflated but spongy, white with purple calyx lobes.

Phenology: — Burmeistera killipii sets flowers and fruits from March to August.

Distribution, ecology and conservation status: — Burmeistera killipii is restricted to cloud forests of the Western Cordillera, in the the department of Cauca ( Colombia), at elevations between 1320 and 3000 m. The hummingbird Eriocnemis mirabilis has been reported as a floral visitor of this species in the specimen Olives et al. (MDMOP-10). Following the IUCN´s (2022) criteria [B1(EOO) and B2(AOO), conditions (a) and (b), and C2(a)(i)], B. killipii qualifies as Critically Endangered.

Notes: — Burmeistera killipii is closely related to B. loejtnantii , from southern Colombia and Ecuador. The species differs by the hispidous-strigose indumentum of stems, petiole, peduncle, hypanthium and calyx lobes; the leaf blade bullate with margin subentire, not toothed, apex obtuse (rarely acute to acuminate), and 4 to 6 secondary veins per side; the peduncle 2.3–5.0 cm long; the calyx lobes strongly reflexed; the corolla warty above and beneath, with dorsal lobes 11–15 × 5–6 mm, lateral lobes 10–14 × 4–7 mm, and ventral lobe 8–10 × 5–6 mm; the synandrium warty, exserted up to 3 cm long; and the berries not inflated (versus the stems, peduncle, and calyx lobes glabrescent to puberulous (not strigose); hypanthium glabrous; petiole glabrescent to slightly strigose; the leaf blade not bullate, with margin subentire, toothed, apex acute to acuminate, and 5 to 8 secondary veins per side; the peduncle 1.5–1.8 cm long; the calyx lobes ascending; the corolla smooth above and beneath, with dorsal lobes 8–10 × 3–4 mm, lateral lobes 7–8 × 3–4 mm, and ventral lobe 6–7 × 2.5–3.5 mm; the synandrium smooth, exserted up to 1.4 cm long; and the berries inflated in B. loejtnantii ).

Additional specimens examined:— Cauca. Parque Natural Nacional Munchique, por Uribe , 7 May 1984 (fl, fr), L. Albert et al. 4446 ( HUA) ; El Tambo, vereda La Romelia, PNN Munchique, camino de la casa de visitantes a La Gallera , 2500 m, 22–24 Aug 2011 (fr), J. Garzón et al. 600 ( COL) ; El Tambo, Vereda La Romelia, PNN Munchique, Quebrada Charco Azul , 2570 m, 20 Jul 1993 (fl, fr), F. González et al. 2865 ( COL) ; El Tambo, La Romelia, PNN Munchique, 2600‒2800 m, 5 Aug 1980 (fl, fr), G. Lozano et al. 3657 ( COL) ; PNN Munchique, km 42‒47 NE of Uribe, 2560‒ 2350 m, 24 Apr 1979 (fl, fr), J. L. Luteyn et al. 7396 ( NY) ; PNN Munchique, kms 42‒47 NE of Uribe, 2650‒ 2350 m, 24 Apr 1979 (fl), J. L. Luteyn 7419 ( NY) ; PNN Munchique, 1‒12 km into park beyond its entrance, 2100‒2440 m, ca. 2º40´N, 76º50´W, 7 May 1984 (fl), J. L. Luteyn 10239 ( NY) ; El Tambo, PNN Munchique, Charguayaco, 1320 m, 3 Apr 1999 (fl), M. Olives et al. 10 ( COL) ; Mount El Trueno , 2700‒3000 m, 29–30 Jul 1922, F. Pennell 7527 ( GH, NY, Y) ; W slope of Cordillera Occidental, PNN Munchique, km 42 to km 58 of Uribe-La Gallera road, c. 2°38´N, 76°54´W, 2000‒2500 m, 27 Mar 1986 (fl), B. Stein 3775 ( NY) ; El Tambo, vereda La Romelia, PNN Munchique, entrada al refugio del Inderena , 2640 m, 20 Jul 1993 (fl, fr), M. Velayos et al. 6852 ( COL, MA) ; El Tambo, vereda La Romelia, PNN Munchique, Quebrada Charco Azul, 2570 m, 20 Jul 1993 (fl, fr), M. Velayos et al. 6963 ( COL, MA, PSO).

Figures

FIGURE 14. Distribution of Burmeistera hippobromoides, B. ibaguensis, B. kalbreyeri, B. killipii, B. loejtnantii, B. longifolia, B. luteynii and B. marginata.

FIGURE 15. A–C. Burmeistera ibaguensis (Pedraza et al. 2087), leaves, flowers and berry. D, E. B. kalbreyeri, leaves, flowers and berries (González et al. 4591). F. B. killipii (González et al. 2865), leaves and flowers. G. B. luteynii, leaves, flower and berry (González et al. 800). Photo credits: A–C, P. Pedraza; D–F. F. González; G. M. González. Scale bars: 1 cm in A, D–G; 5 mm in B, C.