Passiflora chachapoyensis T. Boza & P. M. Jørgensen, 2025

Espinoza, Tatiana Erika Boza, Macdougal, John M. & Jørgensen, Peter Møller, 2025, Five New Species of Passiflora (subgenus Decaloba, Passifloraceae) from Peru, Phytotaxa 716 (2), pp. 72-86 : 79-81

4. Passiflora chachapoyensis T. Boza & P. M. Jørgensen , sp. nov.

TYPE: Peru. Amazonas: Distr. Chachapoyas, remnants of forest a few km past Molinopampa , 06°12’S, 76°40’W, 2450 m, 13 Apr. 2001, H. Van der Werff, R. Vásquez, B. Gray, & R. Rojas 17007A ( holotype, MO- 04838344 ! barcode MO-1103150 ) . Figure 6 .

Diagnosis:—Differs from all other species of Passiflora in Peru by the combination of bilobed leaves densely hirsutepubescent abaxially, with the angle between the veins of the lateral lobes of the leaf 28–48° and laminar nectary glands present, bracts at least 1 mm wide, and the outer corona 11–12.3 mm long.

Vine, densely to sparsely puberulent throughout. Stems striate. Stipules (3.1–)4.0–4.5(–6.1) × (0.2–) 0.4–0.5 mm, linear to linear triangular, more or less falcate, very sparsely pubescent abaxially; petioles (13.4–)14.6–16.7(–18.5) mm long, glandless; laminas (3.8–)6.1–7.1(–8.6) × (4.0–)4.4–5.3(–6.0) cm, entire, very broadly obovate to broadly obovate, cordate at the base, densely hirsute abaxially, trichomes 0.2–0.3 mm long, sparsely hirsute adaxially, trichomes 0.2 mm long; 3-lobed, the lateral lobes acuminate to acute, central lobe cusp-like; the angle between the lateral lobes veins (28–)33–38(–48)º, with 4–10 ocellate glands 0.6–0.9(–1.1) mm diam. in lines between the primary veins only, 4 glands located at the base between primary veins, each primary vein ending in a distinct mucro. Peduncles (8.5–)14.7– 21.8(–30.2) mm long, in pairs, bracts (3.6–)4.4–5.3(–6.6) × (1.0–) 1.1–1.2 mm, linear, scattered along the peduncle; floral stipe (1.9–)2.1–2.4(–2.9) mm long to 7.5 mm long in fruit. Flowers 4.7–4.8 cm diam., greenish-white or pale yellow-green; sepals (11.4–)16.3–18.1(–21.8) × (3.8–)5.1–5.7(–7.0) mm, hirsute outside, obtuse apex; petals 10.1– 11.2 × 3.7–3.8 mm, linear to narrowly elliptic, acute apex, white, base purple; coronal filaments in 2 series; filaments of outer row 11.0– 12.3 mm long, filiform, truncate, color unknown; filaments of the inner row (2.0–)2.4–2.7(–3.5) mm long, capillary, slightly clavate at apex; operculum (2.3–)2.9–3.2(–3.8) mm long, membranous, plicate, crenate; androgynophore 7.3–8.1(–8.8) mm long; filaments (5.4–)5.9–6.4(–6.6) mm long; anthers (5.1–)5.3–5.5(–5.6) × (1.4–)1.6–1.8(–2.3) mm; ovary 3.6–5.1(–6.4) × 2.3–3.7 mm, ovoid, densely hirsute; styles (4.9–)5.7–7.0(–8.4) × (0.2–)0.4– 0.5(–0.8) mm; stigma (1.7–)2.1–2.4(–2.7) mm diam., capitate. Fruit (immature) ca. 22.0 × 13.4 mm, ellipsoid, densely hirsute, mature size unknown but color at maturity “dark blue” ( Weigend 98/412); aril unknown, seeds 3.0–3.6 × 2.4–2.6 mm, transversely sulcate with smooth ridges with 7–9 sulci, acute at the base.

Etymology. This new species is named after the Chachapoyas district in northern Peru, where it grows.

Distribution and Habitat. Passiflora chachapoyensis is endemic to cloud forest at 2400–2500 m elevation in northern Peru, where it has been collected three times.

Conservation status. The species is only known from two populations in Chachapoyas ( Amazonas). The AOO is estimated as 4 km 2. Based on this restricted distribution and habitat, P. chachapoyensis is assigned a conservation status of “Endangered” [EN B2a].

Phenology. Flowers observed in April and June, fruits have been found in June.

Discussion. Passiflora chachapoyensis is one of the few passifloras in Peru with bilobed leaves that are densely hirsute beneath and can be distinguished by the characters described in the diagnosis. Passiflora cisnana Harms (1894: 5) , though not closely related ( Boza et al. 2018), is similar in leaf shape, both having pubescent broadly obovate leaves with cordate base, but it can be distinguished from the new species by the absence of laminar nectaries and floral bracts.

Paratypes: PERU. Amazonas: Prov. Mendoza , road Chachapoyas to Mendoza , 40–42 km E of Chachapoyas, 2400–2500 m, 5 Jun. 1988, M. Weigend et al. 98/412 ( F- 2211490 , M-0007958 [barcode], USM- 172620 ); M. Weigend et al. 98/441 ( F- 2209984 , M- 0007957 [barcode]) .

Figures

FIGURE 6. Passiflora chachapoyensis T. Boza & P. M. Jørgensen. A. Habit. B. Leaves. C. Flower. D. Node showing stipule and bracts of developing buds. E. Flower, longitudinal section. F. Outer and inner coronal filaments. (A, B right, C, F from van der Werff 17007A. B left, D from Weigend 98/441. B mid, G from Weigend 98/412)