Polylepis canoi, W. Mend. Revista

3. POLYLEPIS CANOI W.Mend. View in CoL

Revista Peru. Biol. 12(1): 104. 2005.

TYPE: PERU. Cusco. La Convención , Cordillera del Vilcabamba , 30 km caminando de la hacienda Luisiana y del R´ıo Apurimac , 3400 m, 17 Jul 1968, T. R. Dudley 11180 (holotype: MO!; isotypes: NA, F!) .

Trees 4–7 m tall. Leaves strongly congested at the branch tips, imparipinnate with 3–4(5) pairs of leaflets, obtrullate in outline, (4.0–)7.9–9.4 X (4.2–) 6.7–7.5 cm; rachises densely sericeous, points of leaflet attachment with a tuft of long, straight yellowish hairs, with ferruginous resin at leaflet insertion; stipular sheaths apically acute with spurs, glabrous in both surfaces; leaflets obovate in outline, second pair from the terminal leaflet the largest, one of this pair (2.4–)3.4–3.9 X (0.8–) 1.1–1.5 cm; margin entire to slightly serrate, coriaceous, apically slightly emarginate, basally unequally cordate; upper leaflet surfaces glabrous or with sparse sericeous hairs; lower leaflet surfaces densely sericeous with yellowish hairs 1.3–1.7 mm. long. Inflorescences pendent, 8.2–14.5 cm long, bearing 12–17(26) flowers; floral bracts 7.0– 15.8 mm long, narrowly triangular, densely sericeous on the outer surface; rachises sericeous. Flowers 7.8–11.2 mm diam; sepals 3–4, ovate, green, densely sericeous outside; stamens 13–15, anthers orbicular, with a dense tuft of straight white hairs on the upper half; styles fimbriate, 2.4–3.8 mm long. Fruits turbinate, with variable numbers and placement of flattened spines, densely sericeous; 5.2 X 7.5 mm including spines.

Distribution and Habitat — Polylepis canoi is distributed from the central-southeastern Peruvian Andes to the central Bolivian Andes. The species occurs in wet Andean forest at 3300–4275 m elevation. It co-occurs with P. argentea and P. pauta in Peru, and with P. lanata In Bolivia ( Fig. 2 View FIG ).

Conservation Status —The EOO is estimated as 97,613 km 2 and AOO as 68 km 2. The species is known from 14 locations among Peru and Bolivia. Polylepis canoi would therefore be assigned a conservation status of Near Threatened (NT). A decline in AOO, extent and quality of habitat, number of locations, and number of individuals would therefore be critical for this species.

Notes —This species was treated as endemic to Peru by Mendoza (2005) when he described the species. Based on the specimens seen by us, we revise its distribution to extend to Bolivia. The specimens from Puno ( Peru), and La Paz and Cochabamba ( Bolivia), were previously determined as P. sericea (e.g. Kessler 1995a). Furthermore, the specimen cited by Schmidt-Lebuhn et al. (2006) as first record of P. pauta for Bolivia is here re-identified as P. canoi .

Polylepis canoi seems morphologically closest to P. ochreata and P. sericea . However, it has obovate and larger (2.4–3.9 X 0.8–1.5 cm) leaflets than the other two species, which have elliptic and smaller (1.8–2.7 X 0.5–1.0 cm) leaflets. Additionally, P. canoi has longer hairs (1.3–1.7 mm) than the other two species (0.7–1.2 mm).

Additional Specimens Examined — Peru. — CUSCO: La Convención. Usually on eastern slopes c. 30 km walking distance NE from Hacienda Luisiana and the Apurimac River , 12°30’S 073°30’W, 19 Jul 1968, T. R. Dudley 11221 ( F, USM) GoogleMaps .— JUNÍN: Jauja. Distrito Molinos. Comunidad Curimarca, Jucha , 11°33’S 075°18’W, 10 Nov 2016, F. N. Ames M. & H. R. Quispe M. s.n. ( Z) GoogleMaps ; Satipo. Junin / Cusco Prov. Satipo? La Convencion. Cordillera Vilcabamba. R´ıo Ene , slope near summit of divide, 11°39’S 073°40’W, 07 Jun 1997, B. Boyle et al.4151 ( USM) GoogleMaps ; Distrito de Pampa Hermosa. Comunidad de Toldopampa, Tasta , 11°26’S 074°53’W, 04 Oct 2016, F. N. Ames M. & H. R. Quispe M. s.n. ( Z) GoogleMaps . PUNO: Huancasayani, on road to Limbani just east of Abra Aricoma , 14°13’S 069°42’W, 28 Mar 1987, D. Boertmann 129 ( AAU) GoogleMaps ; Huancasayani between Abra Aricoma and Limbani, roadside and cultivated areas near houses, 14°13’S 069°42’W, 28 Mar 1987, J. S. Brandbyge 511 ( AAU) GoogleMaps .— Bolivia. — COCHABAMBA: Chapare. Mayka Mayu, I. Hensen 2248 ( BOLV, LPB, MO, TEX) ; Maycamayu , ca. 60 km N Sacaba, 17°12’S 065°58’W, 11 Aug 1991, M. Kessler), 2874 ( GOET), 2875 ( GOET), 2877 ( GOET), 2878 ( AAU), 2879 ( GOET, MO), 2880 ( GOET) GoogleMaps . — LA PAZ: Bautista Saavedra, Area Natural de Manejo Integrado Apolobamba , bajada de Waricunca , más allá de Chaka , por el antiguo camino Sorapata-Apolo , 14°53 ' 19"S 068°47 ' 04"W, 28 Mar 2009, A. F. Fuentes & H. Huaylla 13589 ( BOLV, LPB, MA, MO, USZ) GoogleMaps ; Area Natural de Manejo Integrado Apolobamba, sector Chaka, bosque continuo al SE del campamento cerca de la cueva, por el antiguo camino Laji Sorapata-Apolo , 14°53 ' 32"S 068°47 ' 12"W, 30 Mar 2009, A. F. Fuentes & H. Huaylla 13634 ( LPB, MO, QCA, USZ), 13639 ( BOLV, LPB, MO, QCA, USZ) ; Área Natural de Manejo Integrado Apolobamba . Bajada de Wuaricunca, más allá de Chaka , por el antiguo camino Hilo-Hilo - Apolo , 14°53 ' 11"S 068°47 ' 04"W, 06 Apr 2009, A. F. Fuentes & S. Achá 13897 ( BOLV, LPB, MA, MO, QCA, USZ) GoogleMaps ; Chaka Machay (Laji), 14°53’S 068°47’W, 14 Sep 2002, F. Zenteno 1507 ( LPB) GoogleMaps ; Área Natural de Manejo Integrado Apolobamba, Hilo Hilo, Juchuy Quenua ~ a medio d´ıa de Laji Sorapata., 14°54 ' 52"S 068°48 ' 08"W, 16 Apr 2009, I. Loza et al. 757 ( LPB, MO), 775 ( BOLV, LPB, MA, MO, USZ), 788 ( LPB, MO, QCA, USZ) ; Area Natural de Manejo Integrado Madidi, Hilo Hilo. Sobre el r´ıo Tumamayu en la localidad de Laji Sorapata, 14°53 ' 14"S 068°51 ' 52"W, 10 Apr 2009, I. Loza et al. 635 A ( LPB, MA, MO), 645 ( LPB, MO, QCA, USZ) ; Franz Tamayo. Bosque de Que ~ nuari, 14°54 ' 31"S 069°01 ' 07"W, 28 Sep 2006, A. Palabral et al. 489 ( LPB) ; Área Natural de Manejo Integrado Apolobamba, Keara bajo, 14°42 ' 09"S 069°04 ' 35"W, 21 Nov 2007, A. Araujo M. & F. Canqui 4078 ( LPB, MO) ; Parque Nacional Madidi, Puina Viejo, ca. 3 km rio abajo por camino al W del rio. Matorrales y pajonales de sustitución del bosque de ceja de monte inferior pluvial, 14°34 ' 58"S 069°06 ' 24"W, 21 Jun 2005, A. F. Fuentes et al. 8549 ( LPB, MO) ; Parque Nacional Madidi, entre Queara y Mojos, sector Mosquito , pajonales secundarios del bosque de yungas en ceja de monte inferior pluvial, en partes manchas de bosques, área muy húmeda en partes con suelos encharcados, 14°39 ' 37"S 068°57 ' 54"W, 26 Feb 2008, A. F. Fuentes & J. Quisbert 12028 ( BOLV, LPB, MO, QCA, USZ) ; Parque Nacional Madidi, Hilo Hilo, arriba de la mina Kanupata en la localidad de Laji Sorapata, 14°52 ' 28"S 068°51 ' 15"W, 11 Apr 2009, I. Loza, A. T. Fernández C et al. 671 ( BOLV, HSB, LPB, MA, MO, NY, QCA, USZ) ; Área Natural de Manejo Integrado Apolobamba, Hilo Hilo, Chaka , sobre la senda hacia Amantala , 14°53 ' 16"S 068°47 ' 16"W, 16 Aug 2009, L. Cayola et al. 3417 ( BOLV, LPB, MA, MO, USZ) ; Senda Pelechuco-Mojo, sector Tambo Quemado, a media hora del campamento siguiendo senda Pelechuco Moxos , 14°41 ' 03"S 068°58 ' 22"W, 01 May 2003, N. Paniagua Z. et al. 5710 ( LPB, MA, MO) GoogleMaps ; Larecaja. Bosque de la localidad de Hirola, pasando Lipichi , 15°26 ' 41"S 068°10 ' 57"W, 05 Nov 2008, A. Palabral et al. 705 ( LPB) ; Murillo. 8 km after Palca on the road to Iquico , 10 Nov. 1967, B. S. Vuilleumier 342 ( MO) .