Justicia tenuiflora Ruiz & Pav.

Villanueva-Espinoza, Rosa, Deng, Yunfei, Scotland, Robert & Wood, John R. I., 2025, Preliminary notes on Justicia (Acanthaceae) in Peru, PhytoKeys 258, pp. 1-123 : 1-123

30. Justicia tenuiflora Ruiz & Pav. , Fl. Peruv. Prodr. 1: 9. 1798. ( Ruiz and Pavón 1798: 9)

Rhytiglossa tenuiflora (Ruiz & Pav.) Nees, Prodr. [A. P. de Candolle] 11: 340. ( Nees 1847 b: 340).

Ecbolium tenuiflorum (Ruiz & Pav.) Kuntze, Revis. Gen. Pl. 2: 981. 1891. ( Kuntze 1891: 981).

Jacobinia tenuistachys Rusby, Mem. Torrey Bot. Club 6 (1): 105. 1896. ( Rusby 1896: 105) Type. BOLIVIA. La Paz, [Larecaja], Guanay – Tipuani, M. Bang 1441 (holotype NY- 00312097, isotypes BM- 000617658, BM- 000617659, C- 10004935, CAS- 0003066, CM- 2079, CORD- 00005098, E, F- 0047399 F, GH- 00094054, GH- 00249355, K- 000529470, LD- 1688024, M- 0186467, M- 0186468, MICH- 1104048, MIN- 1001467, MO- 1587290, NY- 00038826, PH- 00016185, PH- 00016186, PH- 00016187, PUL- 00000304, S- 05-386, US- 01095038, US- 01095039), W 1893-0005428, W- 1893-0005430).

Justicia tenuistachys (Rusby) Wassh. & J. R. I. Wood, Kew Bull. 58 (4): 818. 2003. ( Wasshausen and Wood 2003: 818), syn. nov.

Beloperone baenitzii H. Winkl., Repert. Spec. Nov. Regni Veg. 7: 113. 1909 ( Winkler 1909: 113) Type. BOLIVIA, Larecaja, Charopampa bei Mapiri, Buchtien 1409 (presumed holotype B †, photo of holotype F 0 BN 008922, isotype US- 00137217).

Justicia baenitzii (H. Winkl.) C. Ezcurra, Bol. Soc. Argent. Bot. 25: 348. 1988. ( Ezcurra 1988: 348).

Beloperone viridissima Rusby , Mem. New York Bot. Garden 7: 367. 1927. ( Rusby 1927: 367). Type. BOLIVIA. Vic. Huachi, head of Beni River, 1800 ft, 13 Aug. 2021, C. E. White 550 (holotype NY- 00311814, isotypes BKL- 00000005, GH- 00093742, K- 000529469, MICH- 1104018, NY- 00311815, US- 00137240).

Type.

Peru • [Huánuco], Cuchero [San Juan de Cochero] , [9°30'S, 75°51'W, 1886 m], Ruiz & Pavon s. n. (lectotype MA 815548 , designated here, isolectotype MA 815547 ) .

Description.

Perennial subshrub to 80 cm in height. Leaves shortly petiolate, lamina mostly 8–18 × 4–8 cm, oblong-elliptic, acuminate, base cuneate, glabrous or nearly so. Inflorescence a terminal panicle c. 15–20 cm long, composed of lax branched spikes; bracts and bracteoles deltoid, 1–2 mm long; calyx subequally 5 - lobed, subglabrous to densely, but shortly glandular hirtellous, lobes 4–6 × 0.25 mm, subulate; corolla 4–4.5 cm long, red, hirtellous, the tube 2–2.5 cm long, the lips 1.3–2 cm long; thecae narrowly ellipsoid, 2 × 0.5 mm, one distinctly smaller, weakly superposed, lacking basal appendages; pollen prolate 38–40 × 22–23 μm, 2 - aperturate, colporate, 1 row of c. 6–7 poorly developed insulae on either side of the aperture (Fig. 50 F ). Capsule 12–13 × 2–3 mm, clavate, glandular-hirtellous; 4 - seeded; seeds tuberculate.

Illustration.

Fig. 28 .

Phenology.

Flowering from May to October.

Habitat.

Tropical rainforest in the Andean foothills, very tolerant of shade, often near streams. Locally common, 600–1200 m approx.

Distribution.

Moist eastern slopes of the Andes from northern Argentina through Bolivia to San Martin and Loreto, but apparently much more common in Huánuco than elsewhere in Peru. Its local abundance in central Peru parallels to some extent the distribution of Justicia warmingii . Fig. 62 .

Material examined.

Peru. July 1854, Lechler 3153 (K) . • Huánuco: [Prov. Chinchao], Pampayacu [9°33'28"S, 75°54'35"W], mouth of Río Chinchao, July 1923, J. F. Macbride 5102 ( US). Prov. Huamalíes , Monzón , 950 m, 8 Sept. 1954, F. Woytkowski 1562 ( MOL). Prov. Leoncio Prado, right margin of Río Monzón , near Cueva de Las Lechuzas [9°18'46.92"S, 76°00'00.71"W], 700–800 m, 18 July 1948, R. Ferreyra 4237 ( MO, US, USM) ; • ibid., trail S of Puerto Cayumba [9°29'41"S, 75°57'9"W], 25 km S of Tingo María, 20 June 1982, D. C. Wasshausen & O. Tovar 1279 (K, US) ; • ibid., confluence of Monzón and Huallaga rivers, near Tingo María , 700 m, 25 Oct. 1938, H. E. Stork & O. B. Horton 9503 (K) ; • ibid., entre Tingo Maria y Monzón , 700–750 m, 20 Aug. 1967, R. Ferreyra 16993 ( MO, US, USM) ; • ibid., Dist. Luyando, Hacienda Shapajilla, cerca de Tingo María , 600–700 m, 10 Aug. 1946, R. Ferreyra 878 ( USM) ; • ibid., Tulumayo, near Tingo María , 650–700 m, R. Ferreyra 2182 ( US) ; • ibid., Dist. Mariano Damaso, Bella Durmiente , cerca de Cueva de las Lechuzas, 700 m, 10 Oct. 1959, R. Ferreyra 13806 ( USM) ; • ibid., Dist. Monzón, confluencia con el Río Huallaga, cerca Tingo María , 700 m, 23 Sept. 1954, R. Ferreyra 10233 ( US, USM) ; • ibid., Dist. Rupa-Rupa, Río Bella , 7 km de Tingo María, 6 Aug. 1946, J. Soukup 3097 ( US) ; • ibid., along Río Monzón on trail to Cueva de las Lechuzas , 650 m, 18 June 1982, D. C. Wasshausen & O. Tovar 1259 (K, MO, US) ; • ibid., along Río Monzón, Jacintillo [9°19'6"S, 76°0'38"W], 680–700 m, 18 July 1978, J. Schunke Vigo 10374 ( MO, US) ; • ibid., Calpar Bella, cueva de los Hauriños. margen izquierda del Río Monzón , 700–900 m, 2 July 1976, J. Schunke Vigo 9488 ( AAU, F, MO, US), J. Schunke Vigo 9489 ( USM). Prov. Pachitea , Dist. Chaglla , rumbo a caserío Montevideo , 9°28'51"S, 75°53'13"W, 1810 m, 9 Aug. 2023, R. Villanueva et al. 988 ( HOXA) . • Madre de dios: Prov. Tahuamanu, cerca del Río Yaverija , a 2 km de Iñapari, 23 May 1978, F. Encarnación 1147 ( US) . • Puno: Prov. Carabaya, Dist. San Gabán [13°28'48"S, 70°25'12"W], 900 m, 12 June 1982, D. C. Wasshausen & A. Salas 1245 (K, US). Prov. Sandia , Dist. Sagrario [13°55'01.2"S, 69°40'58.8"W], 1000–1300 m, 26 May 1942, R. D. Metcalf 30631 p. p. ( MO) . • San Martín: Prov. Tocache [Mariscal Cáceres], Dist. Tocache Nuevo, Quebrada de Santa Rosa de Cachiyacu carretera a Progreso , [8°31'5"S, 76°25'W], 500–700 m, 19 July 1974, J. Schunke Vigo 7572 ( MO, US, USM) ; • ibid., Dist. Uchiza, Cerro de Santa Cruz , al este del puente, carretera marginal, 700–800 m, 3 Aug. 1974, J. Schunke Vigo 8010 (F, MO, US, USM) . • Ucayali: Prov. Coronel Portillo, Dist. Iparia, falda dentro las cuencas de los Ríos Arapo y Manegene , afluentes del Río Ucayali , 1100 m, 22 Aug. 2010, J. G. Graham 5952 ( MOL, US, USM). Prov. Padre Abad, Dist. Padre Abad, carretera antigua a Pucallpa, 1200–1300 m, 9 May 1978, J. Schunke Vigo 10142 ( U, US) ; • ibid., cumbre de la Divisoria, entre Ucayali y Huánuco, cabecera del Río Yurac, afluente del Río Aguaytía , 9°11'03"S, 75°47'47"W, 1500–1600, 7 June 2007, J. G. Graham & J. Schunke Vigo 4185 ( MOL, US, USM) ; • ibid., Catarata Santa Rosa , 9°09'40"S, 75°45'39"W, 882 m, 8 Aug. 2023, R. Villanueva et al. 975 ( HOXA) ; • ibid., Boquerón Padre Abad , 9°03'58"S, 75°40'45"W, 450–500 m, 5 Sept. 2019, I. Azevedo et al. 281 ( IBSC) .

Note.

Variable in the indumentum and length of the sepals. Sepals are narrowly lanceolate with a fine attenuate apex. In younger specimens, the sepals may be only 3–4 mm long but in more mature specimens, they can reach 7 mm. In some specimens the sepals are completely glabrous, but younger specimens are often with sessile glands, these becoming stipitate and mixed with eglandular hairs in some more mature specimens.

Figures

Figure 28. Photographs of Justicia tenuiflora (Villanueva 975) by Rosa Villanueva.

Figure 50. Pollen images A Justicia radicans (Azevedo 147) B J. angustituba (Campos & Diaz 2380) C J. reginaldii (Ferreyra 7070) D J. baguensis (Van der Werff 14633) E J. cajamarcensis (Woytkowski 5671) F J. tenuiflora (Azevedo 281). Scale bars: 10 μm.

Figure 62. Distribution of Justicia dryadum (red circles), J. tenuiflora (green triangles) and J. warmingii (blue squares) in Peru.