Justicia aphelandroides (Mildbr.) Wassh.

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

publication ID	https://doi.org/10.3897/phytokeys.258.144435
DOI	https://doi.org/10.5281/zenodo.15676471
persistent identifier	https://treatment.plazi.org/id/1E2EECFE-5D2B-5E90-9D6A-E6CE32090839
treatment provided by	PhytoKeys by Pensoft
scientific name	Justicia aphelandroides (Mildbr.) Wassh.
status

Treatment

13. Justicia aphelandroides (Mildbr.) Wassh. View in CoL , Monogr. Syst. Bot. Missouri Bot. Gard 45: 1253. 1993. ( Wasshausen 1993: 1253)

Jacobinia aphelandroides Mildbr. View in CoL , Notizbl. Bot. Gart. Berlin-Dahlem 9: 989. 1926. ( Mildbraed 1926: 989) Type. PERU. Upper Marañón, Tessmann 4222 (holotype B †, photo of holotype F 0 BN 008903 View Materials , isotype MO- 3345889, not seen).

Type.

Based on Jacobinia aphelandroides Mildbr.

Description.

Herb 2 m high, stems stout, glabrous. Leaves petiolate, lamina 20–25 × 5–7 cm, narrowly obovate, apex shortly acuminate, gradually tapered to a cuneate base, margin entire; petioles 1–1.5 cm. Inflorescence of simple terminal spikes c. 7 cm long; peduncles 5 cm; bracts 7–8 × 4 mm (c. twice as long as broad), ovate, finely acuminate; bracteoles similar but smaller, 6 × 2.5 mm; calyx subequally 5 - lobed to 2 mm above base, lobes 8.5–9.5 × 1.5 mm, minutely puberulent; corolla pink, papillate, tube 3.5–4 cm long, lips subequal, 2.2–2.5 cm long, upper lip lanceolate, emarginate, lower lip 3 - lobed, lobes c. 2 mm long, lanceolate; pollen prolate-perprolate, 63–74 × 29–39 μm, 2 - aperturate, colporate, ≈ 3 rows of solid insulae on either side of aperture (Fig. 49 E View Figure 49 ). Capsule and seeds not seen.

Phenology.

Found in flower October.

Habitat.

Lowland, rainforests, 160– 275 m.

Distribution.

Endemic to Amazonas region. Fig. 57 View Figure 57 .

Material examined.

Peru • Amazonas: Prov. Bagua, Río Marañón, mouth of Río Santiago , 250–275 m, 14–15 Oct. 1962, J. J. Wurdack 2245 (F, K, USM) .

Notes.

Similar to Justicia elegantissima (Lindau) Wassh. but the calyx lobes subequal and much shorter.

Only known from two collections, the most recent in 1962. Further exploration in the Río Santiago zone is needed to confirm the continued presence of this species as the surroundings of the Santiago river have been degraded by illegal mining.