Doselia lopezii (Hunz.) A. Orejuela & Saerkinen, 2022

Orejuela, Andres, Villanueva, Boris, Orozco, Clara Ines, Knapp, Sandra & Saerkinen, Tiina, 2022, Monograph of Doselia (Solanaceae), a new hemiepiphytic genus endemic to the northern Andes, PhytoKeys 202, pp. 73-96 : 73

4. Doselia lopezii (Hunz.) A. Orejuela & Saerkinen comb. nov.

Figs 1F-H , 7

Markea lopezii Hunz., Lorentzia 5: 9. 1985. Type. Colombia. Valle: Cuenca del Rio Cali, cercanías de Peñas Blancas, 10-11 Jan 1963 (fl), M. López-Figueiras 8208 (holotype [two sheets]: US! [00385918, acc. # 2451166; 00385936, acc. # 24511165]).

Type.

Based on Markea lopezii Hunz.

Description.

Hemipiphytic liana with adventitious roots. Stems sparsely pubescent with simple, uniseriate 4-8-celled, hyaline ochre trichomes 0.5-1.2 mm long, with deciduous apex and a persistent multicellular base giving the surface a tuberculate appearance, stems glabrescent with age. Leaves tightly clustered towards the branch tips, (7-)10-22 cm long, 4-9.8 cm wide, elliptic to broadly elliptic, sparsely pubescent with simple uniseriate 4-7-celled hyaline trichomes 0.8-1.2 mm long on both sides; major veins 4-6 pairs, slightly raised abaxially; base cuneate, slightly asymmetric; margins entire; apex acute to acuminate; petiole (7-)10-19(-25) mm long, densely pubescent with simple trichomes as on the leaves. Inflorescence axillary, simple, ebracteate, 7-35(-50) cm long, ~2-5-flowered, densely pubescent with simple, uniseriate trichomes like those on stems; peduncle 6-24(-39) cm long; pedicels 0.8-1.7(-3.0) cm long, distally winged and thickened. Calyx 3.8-5.6 cm long, 1.4-1.9 cm wide, green, sometimes tinged with purple, densely pubescent with simple, uniseriate trichomes like those on leaves; tube 8-9 mm long; lobes flat, 3.5-4.4 cm long, 1.2-1.4 cm wide, long-triangular, apically long-acuminate, green or green with purple margins, sparsely pubescent with simple uniseriate trichomes on the abaxial side. Corolla 8-11 cm long, the inner corolla diameter 2.5-2.8 cm, hypocrateriform; tube 7-10 cm long, orange and tinged with purple in the throat internally, glabrous; lobes 3.2-3.9 cm long, 3.7-4.1 cm wide, triangular, orange, spreading to slightly reflexed at anthesis, the margins flat and entire, the apex acute, glabrous or with a few minute trichomes along the veins. Stamens 7-8.6 cm long, partially exserted beyond the mouth of corolla tube; filaments 5.3-6.1 cm long, adnate at 1.0-1.3 cm from the base of the corolla tube, purple-tinged, densely pubescent with simple 6-10-celled uniseriate trichomes at the insertion point; anthers 1.9-2.2 cm long, 1.4-1.8 mm wide. Ovary ca. 7.5 mm long, ca. 2.9 mm wide, yellow, glabrous; style 7.9-8.8 cm long, glabrous; stigma clavate. Fruit 2.7-3.2 cm long, 1.5-3.3 cm wide, light green; fruiting calyx persistent, accrescent and fully covering the fruit, the lobes 3-3.3 cm long, 1.2-1.4 cm wide. Seeds numerous, 2.2-2.7 mm long, 1-1.3 mm wide, ochre when fresh, brown when dry, the testa reticulate, the testal cells rectangular in outline. Chromosome number not known.

Distribution

(Fig. 2 ). Doselia lopezii is endemic to the pre-montane forests of the Colombian Andes in the departments of Antioquia, Caldas, Valle del Cauca and Risaralda.

Ecology.

Mid-elevation moist forests from 1,700 to 2,100 m elevation.

Preliminary conservation status

( IUCN 2022). Doselia lopezii is classified as vulnerable (VU) according to the B1a criterion with an EOO of ca. 6,000 km2. The area where it is distributed is severely fragmented and the species is known from fewer than ten localities..

Discussion.

Doselia lopezii is the type species of the genus and the easiest species to recognise on account of its showy flowers with large orange corollas (Table 2 ; Fig. 1F, G ). Doselia lopezii has anomalous and apparently unique pollen in the genus with prominent spiny supratectal processes ( Persson et al. 1994). Preliminary observations in D. huilensis ( Orejuela et al. 2014) and specimens of D. epifita examined by Hunziker (1997, as M. lopezii ) indicate that the pollen of these two species lack these spiny supratectal processes.

Specimens examined.

Colombia. Antioquia: Medellín- Puerto Triunfo, Cocorna, ca. 5 km E of Cocorna Peaje, Quebrada El Biadal , 6°N, 75°10'W, 1,830 m, 23 Nov 1983 (fl), Juncosa 1400 (JAUM); Pulperies 6000, Jul 1880 (fl), Kalbreyer 1638 (K, MO). Caldas: Municipio Samaná, corregimiento Florencia, Vereda San Vicente, sector río Claro - Sierra Morena, Parque Nacional Natural Selva de Florencia , 5°31'21"N, 75°3'40"W, 1,840 m, 2 Oct 2012 (fl), Betancur et al. 16698 (COL). Risaralda: Municipio de Pueblo Rico , en cercanías de los límites con el PNN Tatamá, Reserva Santuario-Tatamá, 5°11'03.1"N, 76°01'16.5"W, 1821 m, 18 Mar 2022 (fl), Orejuela et al. 3849 (JBB). Valle del Cauca: Finca Torremolinos, km 22, carretera entre Cali y Buenaventura, cordillera occidental, vertiente occidental, 1,800 m, 13 Oct 1982 (fl), Albert de Escobar et al. 2678 (HUA); km 18, vía Cali-Buenaventura, chemin lateral, 1,920 m, 8 Mar 1997 (fl), Billiet & Jadin 6904 (MO); Estación Microondas Tokio, 8 km W of Queremal (along old road to Buenaventura ), 2°27'00"N, 76°45'00"W, 26 Sep 1980 (fl), Croat 50164 (MO); Hoya del rio Digua , Quebrada del San Juan , subiendo a Paragüita desde Queremal , 3°32'09"N, 76°42'42"W, 1,570-1,740 m, 17 Mar 1947 (fl), Cuatrecasas 23830 (F); Hacienda Tokio, wet montane forest behind microwave tower ca. 10 km S of Queremal, 3°30'00"N, 76°42'00"W, 2,000 m, 26 Feb 1983 (fl), Gentry et al. 40820 (MO); La Cumbre, vereda La Sofía, corregimiento de Bitaco, Cerro de Yumbillo , cordillera occidental, vertiente occidental, 1,850 m, 6 Dec 1988 (fl), Klimkiewicz & Cabrera 275 (CUVC); Cuenca del rio Cali , cercanías de Peñas Blancas, 3°26'10"N, 76°38'28"W, 10 Jan 1963 (fl), López-Filgueiras 8208 (US) ; La Cumbre, corregimiento de Bitaco, vereda Chicoral , 3°33'56"N, 76°35'3"W, 2,020 m, 23 Jul 2003 (fl), Mendoza et al. 15275 (FMB); km 18, vía Cali-Buenaventura, vereda Dapa, Finca Zíngara, 1,800 m, 6 Nov 2009 (fl), Orejuela 59 (COL); vía Cali-Dagua, km 23, Reserva Privada El Refugio, 4 Nov 2011 (fl), Orejuela & Calderón-Sáenz 170 (COL); Vía Cali-Dagua, km 23, Reserva Privada El Refugio, 3°32'02"N, 76°36'56"W, 1,870 m, 13 Feb 2014 (fl), Orejuela et al. 727 (COL, JBB) .

Figures

Figure 1. Doselia A. Orejuela & Saerkinen A pseudoverticillate leaves in D. epifita B infundibuliform cream-purplish corolla of D. epifita C infundibuliform greenish-white corolla with subtle purple veins of D. galilensis D tubular-campanulate yellowish-green corolla of D. huilensis with strong purple-tinged reticulation along major and minor veins E developing fruit in D. huilensis F hypocrateriform orange corollas in D. lopezii G pendent long flowering branches in D. lopezii with clustered leaves and orange corollas in frontal view H developing fruit in D. lopezii with a nectariferous disc at the base (Vouchers: A Orozco et al. 3876 (COL), B no voucher, C Corrales et al. 917 (JBB, TOLI), D Coral 34 (HEEA), E Orejuela & Velez-Puerta 112 (COL) F Orejuela et al. 727 (JBB) G no voucher H Orejuela & Calderon 170 (COL): photos by Alistair Hay, Andreas Kay, Andres Orejuela, Boris Villanueva, Brayan Coral, and Eduardo Calderon.

Figure 2. Geographic distribution of Doselia, including D. galilensis (green triangles).

Figure 7. Doselia lopezii A branch with clustered leaves and an inflorescence axis B trichomes on leaves C trichomes on the calyx D trichomes at the filament insertion point E flower at anthesis F dissected corolla showing partially exserted stamens G stamen in lateral view H detail of a stamen showing the insertion of the filament I detail of the stigma J fruit with an accrescent calyx with two calyx lobes removed (A-I Lopez Filgueiras 8208: Drawing by Nidia Flury, first published in Hunziker (1985), reproduced with permission, the original drawing was edited by Omar Bernal and the fruit drawn by Humberto Mendoza).