Justicia pozuzoensis Wassh.

5.Justicia pozuzoensisWassh., Monogr. Syst. Bot. Missouri Bot. Gard. 45: 1253.1993. (Wasshausen 1993: 1253) Jacobinia weberbaueri Lindau, Notizbl. Bot. Gart. Berlin-Dahlem 8: 246. 1922. (Lindau 1922: 246) Type. PERU. Pasco, Prov. Pozuzo, A. Weberbauer 6749 (presumed holotype B †, isotypes F- 0040507 F, GH- 00094055, MOL- 00005726, MOL- 00005727, MOL- 00005728, US- 02882985). Type. Based on Jacobinia weberbaueri. Description. Subshrub to 2 m in height, stems bifariously puberulent. Leaves subsessile or shortly petiolate, lamina 5–10 × 2–3.5 cm, ovate, acuminate, base subcordate, rounded to cuneate, glabrous except ciliolate margin, both surfaces with cystoliths; petioles 0–7 mm long. Inflorescence of solitary or (rarely) branched terminal lax spikes up to 15 cm long, occasionally also arising in the upper leaf axils, the flowers solitary, up to 15 mm apart; bracts 6 × 0.5 mm, puberulent, sterile below; calyx 4 - lobed, lobes 12–15 × 1.5 mm, pubescent below, glabrous apically; corolla 4–4.9 cm long, orange, puberulent, tube subcylindrical 3 mm wide at base, widened to 6 mm above, upper lip 21 × 10 mm, bilobed, lower lip 19 × 9 mm, 3 - lobed, lobes emarginate; filaments c. 22 mm long, anther thecae 2 mm long, superposed, muticous; pollen prolate, 37.5–45 × 25–30 μm, 2 - aperturate, colporate, two irregular rows of 6–9 insulae on either side of the aperture, the outer row partially peninsulae (Fig. 48 C); ovary 2.5 mm high, glabrous. Capsule 18–20 × 5–6 mm, glabrous, clavate, the base sterile, 4 - seeded; seeds c. 3 mm, rounded, verruculose. Illustration. Figs 6, 7. Phenology. Flowers from May to August. Habitat. Steep forested slopes and roadsides, c. 600 to 1800 m. Distribution. A rare species endemic to central Peru. Most records are from near Pozuzo. Fig. 55. Material examined. Peru • [Huánuco]: Prov. Pachitea, Dist. Chaglla, Yanano [9°50'S, 75°54'W approx.], 6000 ft, 13–16 May 1923, J. F. MacBride 3722 (F, US). • Junín: Prov. Chanchamayo, San Ramón, Between Lourdes de Oxabamba and Nueva Italia, 11°3"36.5"S, 75°24'18.2"W, 1120 m, 3 Aug. 2023, R. Villanueva et al. 925 (HOXA); • ibid., carretera a la Promisoria, pasando Lourdes, 11°3"59.4"S, 75°24'08.7"W, 22 March 2022, C. Reynel 22-049 (MOL); • ibid., 28 March 2022, C. Reynel 22-112 (MOL). • Pasco: Prov. Oxapampa, Dist. Pozuzo, the type; • ibid., Huacabamba – Pozuzo, Cañón de Huacabamba, below Río Tunqui, 10°10'S, 75°35'W, 1000–1500 m, 30 June 1985, R. Foster et al. 10367 (F, MOL, USM, US); • ibid., Dist. Pozuzo, 2000 ft, 20–22 June 1923, J. F. Macbride 4700 (F, US); • ibid., Dist. Huancabamba, 10°05'42"S, 75°55'8"W. 1777 m, Xue-Jun Ge et al. 497 (USM); • ibid., Xue-Jun Ge et al. 503 (USM). Conservation. This species was assessed as EN, B 1 ab (iii) following IUCN (2024) guidelines (León 2006). However, this categorization is likely to have been premature as fewer records were known at the time and no evaluation of the populations or habitats was carried out.