TABLE 1. Morphological differences between P. yanesha, P in A new species of Polylepis (Rosaceae) from the Oxapampa-Asháninka-Yánesha Biosphere Reserve, Perú

TABLE 1. Morphological differences between P. yanesha, P. rocio-rojasii, and P. pampabella. CharactersPolylepis yaneshaPolylepis rocio-rojasiiPolylepis pampabellaRhytidomesShort, thin, papyraceous, dark brown to reddish brownLong, thick, dark brown to reddish brownLong, thin, orange to dark brownLeavesObovateSimple triangularOrbicular, obovatePetioles0.7–1.0 cm long, lanuginose with sparse filiform glandular trichomes of golden-yellowish resin and a 2 mm long tuft of hairs at the insertion of the petiole to the twig0.7–1.2 cm long, lanuginose, without glandular trichomes, with a tuft of hairs 2.4–2.7 m long at the insertion of the petiole to the twig0.5–1.5 cm long, sericeous with glandular reddish-yellow resin trichomes, with a tuft of hairs 2.0–3.0 mm long, at the insertion of the petiole to the twigStipular sheath3.0 × 0.8 cm with 2 persistent spurs, covered by sericeous indumentum 2.5–3.0 mm long on the external surface2.2–2.3 × 0.4–0.5 cm with 2 deciduous spurs, covered by sericeous indumentum 3.0–4.0 mm long on both sides1.5–1.8 cm long with 2 spurs, covered by sericeous indumentum on the external surfaceLeafletsImparipinnate with 1 pair, oblong-elliptic, adaxial surface sparsely lanuginose dark green, secondary venation inconspicuous, abaxial surface densely lanuginose with glandular filiform hairs of golden-yellowish resin, tridentate emarginate apex. Central, 2.9–4.0 × 0.6–0.8 cm, base obtuse, symmetrical. Lateral, 2.4–3.4 × 0.6–0.8 cm sessile, bases asymmetricalImparipinnate with 1 pair, oblong-elliptic to obovate-elliptic, adaxial surface sparsely lanuginose dark green, secondary venation strongly printed conspicuous, abaxial surface densely lanuginose without glandular trichomes, apex emarginate. Central 3.5–4.5 × 0.8– 1.3 cm, base obtuse, symmetrical. Lateral, 3.0–4.5 × 0.8–1.0 cm, sessile, bases asymmetricalImparipinnate with 1–2 pairs, oblong-lanceolate, adaxial surface glabrescent, light olive green, with inconspicuous secondary venation, abaxial surface densely sericeous without glandular trichomes, apex emarginate. Central 2.8–4.9 × 0.4–1.0 cm, base attenuated, symmetrical. Lateral, 2.3–4.5 × 0.4–0.9 cm, sessile, asymmetric bases strongly auriculateInflorescence4.0–8.0 cm long, lanuginose, semi-pendulous, rigid, with 5–8 flowers6.0–7.0 cm long, lanuginose, rigid pendulous, with 6–12 flowers8.0–14.0 cm long, sericeous, pendulous, with 6–13 flowersFloral bract5–8, concave-cymbiform, 8.2–8.3 × 1.2–1.3 mm, densely lanuginose on the outer surface6–12, ovate-elliptic, acuminate, 7.0–9.0 × 2.2–2.7 mm, densely sericeous on the outer surface6–13, narrowly triangular, 0.8–1.7 × 0.2–0.3 cm slightly sericeous to glabrescent on the outer surfaceSepals3–4, mostly 4, concave cymbiform, densely lanuginose on the outer surface3–4, ovoid triangle, erect, concave, densely lanuginose on the outer surface3-4, rarely 5 ovate, green, densely sericeous on the outer surfaceAndroecium18–19 stamens6–18 stamens17–24 stamensGynoeciumStyle 1.8–2.0 mm in lengthStyle 1.7–1.8 mm in lengthStyle 1.5–2.8 mm in lengthFruitsRounded-ovoid 3.0–3.2 × 3.3–3.5 mm to cylindrical 4.0–4.2 × 1.7–1.8 mm, densely lanuginose, with 7–8 short spines, with blunt apexRounded-ovoid, 3–3.5 × 2.8–3.2 mm, densely lanuginose, with 1–7 short spines with blunt apex.Turbinate, 2.5–6.5 × 4.5–10.0 mm, densely sericeous with 10–15 long pointed spinesDivergence of lateral leaflets (°) in mature leaves30–45°75–90°65–85°