Selkirkia trianae (Wedd.) Holstein & Weigend, 2016
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publication ID |
https://doi.org/ 10.11646/phytotaxa.270.4.1 |
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persistent identifier |
https://treatment.plazi.org/id/BB2887A7-FFD4-FFF3-F8B6-F903FA5EFB41 |
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treatment provided by |
Felipe |
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scientific name |
Selkirkia trianae (Wedd.) Holstein & Weigend |
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2. Selkirkia trianae (Wedd.) Holstein & Weigend , comb. nov.
Basionym: Cynoglossum trianaeum Wedd., Chlor. andina 2(11) (1859: 90). Original citation: “ Nouvelle-Grenade, Cordillères de la province d’Antioquia, 3000 m.” Lectotype [designated by Brand (1921: 136)]:— COLOMBIA. Antioquia, 2390 m, J.J. Triana 2141 (B destroyed). Neotype (designated here):— COLOMBIA. Antioquia: Municipio Rio Negro, Eneal, 2380 m, February 1852, J.J. Triana 173
(COL000004064!, isoneotypes BM001191576!, K!). The nr. “3784” mentioned by Hilger et al. (2015) is not a collection number,
but instead is apparently the herbarium number.
Description: —Perennial herb or subshrub, 30–50 cm, diffusely branched, decumbent to ascending, with long flagelliform stolons from basal parts (20–50cm). Old portions with withered, brown leaves, living stems basally up to 5 mm thick.Stems loosely pilose. Leaves oblanceolate to elliptical, 6–18 × 1.5–5.5 cm, somewhat basally crowded, cauline leaves widely decurrent onto indistinct petiole, apex acute, apiculate. Lamina adaxially pubescent with simple conical trichomes (0.2– 0.5 mm), glabrescent; abaxially as on adaxial side but indumentum persisting, margin remotely beset with up to 1 mm long trichomes. Middle vein of leaf conspicuous, secondary veins indistinct.Inflorescences terminal, overtopped with vegetative shoot originating from axil of uppermost foliage leaf. Flowers in initially dense, later elongated ebracteate thyrsoids with monochasial branches, subtended by frondulose bracts. Petioles strigose with up to 0.7 mm long acroscopically appressed trichomes, 4–7 mm, postflorally elongating. Calyx strigose but shorter than on petiole, tube 1–1.5 mm, lobes 1.5–2 mm, ovate-acuminate. Corolla hypocrateriform, 7–11 mm in diam., tube 2.5 mm long, subcircular with rounded apex, 2.5–4.5 mm long; blue to purple with white papillose faucal scales at the throat. Stamens 5, epipetalous, included in corolla tube. Pollen unknown. Style protruding from mouth of tube, stigma indistinctly 2-lobed. Nutlets (1–)4, 6–8 × 4–6 mm, ovate-acuminate in outline, dorsiventrally compressed, smooth, abaxially and on sides densely beset with barbed glochidia with narrow stalks, adaxially glabrous. Cicatrix ovate-acuminate,> ½ of adaxial nutlet surface. ( Figs 2B View FIGURE 2 , 3A–C View FIGURE 3 )
Note: —As the lectotype by Brand has been destroyed, and no Triana material was found in P (nor seen in BR nor M) where Weddell’s main material is housed ( Stafleu & Cowan 1976 –1988), we choose the only Triana specimen of S. trianae in COL as the neotype.
Habitat and distribution: — Selkirkia trianae ranges from central Colombia to central Ecuador at elevations from ca. 2500 to 3500 m. It grows in the undergrowth of dense, primary cloud forests.
Conservation status: —The species has not been assessed so far. Based on the IUCN-criteria (http://jr.iucnredlist. org/documents/redlist_cats_crit_en.pdf, accessed 28.08.2015) the data are clearly deficient for a confident threat assessment. Selkirkia trianae is subject to dramatic habitat loss due to deforestation—all five known Ecuadorean localities searched by one of the authors (MW) in 2005 had been converted to pastures and the plant was not encountered. Land conversion probably poses a dramatic threat to the species and it must be considered as endangered at least in Ecuador.
Specimens examined:— COLOMBIA. Cauca: Western slopes of Sotará Volcano, 2900‒3200 m, Anon. 6204 (K). Near Pasto, 10000 ft., 1895, R.B. White s.n. (K). Cordillera Central, Puracé, in páramo, 3450 m, February 1938, K. von Sneidern 1903 (S). Macizo Colombiano, páramo de Las Papas, El Boquerón, 3200‒3510 m, 7‒27 September 1958, J.M. Idrobo et al. 3208 (COL000111659). Macizo Colombiano, páramo de Las Papas, entre El Boquerón y La Hoyola, 3200‒3510 m, 7‒27 September 1958, J.M. Idrobo et al. 3914 (COL000111660). Mpio. de Puracé, Parque Nacional Natural de Puracé, 3050 m, 4 October 1984, G. Lozano et al. 4482 (COL000111662). Mpio. de Inzá, vereda Río Sucio, Jardín Botánico las Delicias, km 62, 2700‒2800 m, 31 March 2003, E.L. Muñoz et al. 1184 (COL000220635). Meta: Cerro Nevado del Sumapaz, Quebrada El Buque, 3400 m, 14 January 1973, A.M. Cleef 7846 (COL000111663). Nariño: [Cuchilla El] Tábano, 2 May 1876, E. André 2952 (K). In vicinib. Pasto, 2 May 1876, E. André 2952 (K). Páramo del Tábano, alto de la Cordillera, entre Pasto y El Encano, vertiente occidental, 3200 m, 11 January 1941, J. Cuatrecasas 11905 (COL000111664). Road to Laguna La Cocha, ca. 10 km E of Pasto, 01°12’ N 77°10’ W, 3000 m, 10 January 1981, A. Gentry et al. 30415 (COL000113339). Putumayo: Páramo de San Antonio, road from Pasio to Sibundoy, 9300‒9600 ft., 13 March 1953, R.E. Schultes & I. Cabrera 18858 (GH). Valle de Sibundoy, 12 km N of Sibundoy, Mirador, 2900 m, 21 April 1964, P. Juajibioy Chindoy 294 (COL000111665, GH). San Agustín: Casapamba, And. Past., 24 May 1876, E. André 2952 (K). Tolima: Prov. de Mariquita, forêts du Tolima, 2000 toises [~ 4000 m], January 1843, J.J. Linden 913 (BM, BR, F, K, P04083276, W0065327, W1889-8438). Páramo de San Antonio, 2830‒2930 m, 13 March 1933, R.E. Schultes & I. Cabrera 18858 (GH). Fresno, La Esperanza, 10000 ft., 9 August 1939, J. Hanbury- Tracy 571 (K). Unclear: Quindío, páramo Sagunta, hic Tolima, December, J. Goudot s.n. (P04083220). [without detailed locality], W. Purdie 1049 (K, K, K). Páramo of Ruiz, March 1846, [unreadable] in Herb. Purdie (K). [without detailed locality], F.C. Lehmann s.n. (K). [without detailed locality], M. Schneider 398 (S). ECUADOR. Cotopaxi: Road Quevedo–Latacunga, Zumbagua, 3200–3800 m, 2 May 1968, G. Harling et al. 8910 (GB, W2003-145). Around Pilaló, 00°57’ S 79°02’ W, 2400 m, 7 June 1968, L. Holm-Nielsen & S. Jeppesen 1528 (AAU, S). Latacunga-Quevedo road, ca. 12 km above Pilalo, secondary forest, 3300 m, 00°58’ S 78°58’ W, 28 May 1979, B. LØjtnant & U. Molau 13891 (AAU, GB). Road Pilaló to Zumbahua, 15 km above Pilaló, elfin forest, 3350 m, 00°59’ S 78°58’ W, 28 July 1980, L. Holm-Nielsen & F. Quintana 24599 (AAU). Imbabura: Lago San Marcos, Cayamba, 11200 ft., 3 December 1961, P.C.D. Cazalet & T.D. Pennington 5499 (B, K). Vía Nueva América-Tambo-Palmira-María Acosta, 3300‒3400 m, 30 December 1979, J. Jaramillo et al. 1749 (AAU). Morona-Santiago: Santiago-Zamora, north and northeastfacing slopes bordering Río Tintas, southeast of el Pan, 2985‒3050 m, 12 July 1943, J.A. Steyermark 53532 (F, F). E of El Pan, Selva de Campañas, 2600‒2800 m, 16 July 1943, M. Acosta Solís 5008 (F). Trail Alao to Huamboya, eastern slopes around La Magdalena, montane rain forest, 01°47’ S 78°24’ W, 3550‒3700 m, 7 May 1982, B. Øllgard et al. 38309 (AAU). Ibid., same date, B. Øllgard et al. 38322B (AAU). Pica Sevilla de Oro Méndez, colleciones entre Sevilla de Oro y Páramo del Castilllo en vegetación dominante de Escallonia , pajín, helechos arboreos, Desfontania, etc., 3550 m, 29 December 1983, J. Jaramillo et al. 6144 (W2014-14936). Napo: Salcedo (San Miguel) to Salcedo- Napo road, km 56, 3000 m, 5 February 1977, J.D. Boeke 909 (AAU, S). Km 40‒46 from Carmelo on road towards La Bonita, primary cloud forest, 00°34’ N 77°30’ W, 2200‒2350 m, 11 April 1979, B. LØjtnant et al. 12251 (AAU). S side of Cerro Sumaco, cloud forest, 2900‒3050 m, 00°36’ S 77°39’ W, 1‒2 May 1979, B. LØjtnant & U. Molau 13127 (AAU, GB). San Miguel (Salcedo) to Puerto Nuevo (Napo), km 61 from Salcedo at the bridge over Río Anatenario, cloud forest, 2800‒2850 m, 00°58’ S 78°15’ W, 27 May 1979, B. LØjtnant & U. Molau 13796 (AAU). Laguna San Marcos, slopes S and SW of the lake, with elfin forest dominated by Escallonia , 3400‒3500 m, 00°07’ N 77°58’ W, 8 July 1980, B. Øllgard et al. 34112 (AAU, K). Upper slopes of Guagra Urcu, cataract with waterfall, moist scrub forest, 2750 m, 00°28’ S 77°43’ W, 26 September 1980, L. Holm-Nielsen et al. 27201 (AAU). Sibundoy, ca. 10 km E of Santa Barbara close to Colombian border, mist forest, 2400 m, 00°33’ N 77°30’ W, 29 December 1986, L.P. Kvist et al. 60239 (AAU). Chimborazo: [Tunguragua], Valle de Pangor, in sylvis sabulosis, October 1858, R. Spruce 5553 (BM0000778750, K000202183, K000202184, K000202185, W1889-8452, W1889-223072). Pichincha: Quito, Anon. s.n. (W1889-8455). Pichincha, 8000 ft., G.K.W.H. Karsten s.n. (W0065328). Wood on the western declivity of Pichincha near the farm of Chiguilpe [Chigüipe?], 1836, W. Jameson 73 (K). Pichincha, 9000 ft., W. Jameson 184 (K). In declivitale occidentali montis Pichincha, locis humidis sylvaticis, 8000 ft., W. Jameson 528 (BM, P04054071). Oya Cachi, 3200 m, 26 October 1945, M. Acosta Solís 11098 (F). Salvador (below San Juan), rivulet shore, 2500 m, 3 May 1955, E. Asplund 16193 (NY02316462 n.v., S, S). Road Chillagallo to Chiriboga, km 32, secondary cloud forest, 2700 m, 7 June 1967, B. Sparre 16876 (AAU). Old road Quito-Santo Domingo de los Colorados, 6‒11 km W of San Juan de Chiriboga, 00°15’ S 78°45’ W, 2800‒3300 m, 20 May 1982, J.L. Luteyn & B.B. Boom 8464 (AAU, NY02316460 n.v.). Cayambe‒Olmedo‒Laguna San Marcos, around the lake, 3300 m, 00°07’ N 7°57’ W, 2 January 1988, P.M. JØrgensen 61995 (AAU). Sucumbíos: Napo-Pastaza, near Santa Bárbara, wet ground, ca. 2700 m, 15 July 1955, E. Asplund 16919 (B, K, NY02316461 n.v., S). Tungarahua: Ostcordillera, Nordseite des Berges, 10 November 1933, E. Heinrichs 531 (B, B, M). Vicinity of Patate, hacienda Leito, wet forest, 2800 m, 5 August 1939, E. Asplund 8084 (S). Cordillera de Llanganates, near junction of Río Golpe and Río Sangarinas (Desaguadero) “Bajada de San Antonio”, 16 November 1939, E. Asplund 9750 (S). Unclear: Ravines of Pillzhum [in the border region of Azuay and Cañar, near Azogues], 12000 ft., W. Jameson s.n. (K).
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