Peperomia emarginulata C.DC. DC. Prodr. 185. 16(1): 433. 1869.

Pino Infante, Guillermo Eloy, Samain, Marie-Stephanie, Alban Castillo, Joaquina Adelaida & Alomia Collazos, Luis Enrique Aaron, 2023, Species of Peperomia (Piperaceae) from the Sana River Valley, Peru, PhytoKeys 225, pp. 1-40 : 1

4. Peperomia emarginulata C.DC. DC. Prodr. 185. 16(1): 433. 1869.

Fig. 6A-F

Type.

Peru, dept. [ Huánuco], Casapí, In Peruvia, sylvis Andium occident. [In Perú, western Andes forests], Mathews 1687 (lectotype: K, designated by Mathieu and Callejas (2006: 351; isolectotype: E, K!)) .

Distribution and habitat.

Plants are reported from Ecuador and Peru, in montane forests from 300 to 1500 m.

Notes.

We compared the three species with features closer to our findings (Table 2 ) The plants we found are in the range of all three, but according to this table, it matches P. emarginulata . Peperomia angularis and Peperomia caucana from Colombia should be reviewed in the future to prove if they are conspecific with P. emarginulata . Peperomia garcia - barrigana Trel. & Yunck. and P. gabinetensis Trel. & Yunck. also show similarities that deserve further analysis, being mostly different in size. Some specimens in herbaria were also determined as P. glabella (Sw.) A. Dietr., a widely distributed species, very close to this group, that is relatively small.

This species belongs to Peperomia subg. Micropiper (Miq.) Miq. ( Frenzke et al. 2015).

Specimens examined.

Peru. Dept. Cajamarca, prov. Santa Cruz, dist. Catache: El Papayo, El Espinal, Monteseco, 600 m, [06°51'31.7"S, 79°06'46.8"W], 18 Jul 1984, A. Sagástegui, E. García & S. Leyva 12354 (HUT, F 1960604, MO 3226489); Monteseco, 3 km NE, 1800 m, [06°50'42.3"S, 79°06'17.1"W], 5 May 1987, J. Santisteban C. & J. Guevara B. 013 (HUT, F 1994832). Same place: 13 May 1987, J. Santisteban C. & J. Guevara B. 055 ( HUT 24750 , F 1995336). Path in Monteseco Forest, 1350 m. [06°51'17.8"S, 79°06'33.3"W], 10 Oct 1993, S. Leiva et al. 911 (HAO, F 2142594); Road from Cayaltí to La Florida, 549 m, 06°51'23.2"S, 79°09'31.1"W, 1 Mar 2009, G.Mathieu & L. Symmank 161 (USM 255771); Road from El Espinal to La Florida, 519 m, 06°51'13.5"S, 79°09'45"W, 28 Aug 2022, G. Pino et al. 3623 (USM 330876); Same road, 527 m, 06°51'16"S, 79°09'44"W, 28 Aug 2022, G. Pino et al. 3627 (USM 330877); Idem, 536 m, 06°51'18.6"S, 79°09'41.6"W, 28 Aug 2022, G. Pino et al. 3632 (USM 330880); Prov. San Miguel, dist. Niepos: Road from Naranjo to La Florida, 1316 m, 06°53'08.6"S, 79°06'45.8"W, Jul 26 2020, G. Pino & L.E. Alomía 3218 (USM 330868); Same road, 1291, 06°53'08.7"S, 79°06'49.1"W, Jul 26 2020, G. Pino & L.E. Alomía 3219; Same road, 1265 m, 06°53'04.6"S, 79°06'51.2"W, Jul 26 2020, G. Pino & L.E. Alomía 3220; Idem, 1213 m, 06°52'54.2"S, 79°06'51.9"W, Jul 26 2020, G. Pino & L.E. Alomía 3221; Idem, 1210 m, 06°52'53.6"S, 79°06'51.0"W, Jul 26 2020, G. Pino & L.E. Alomía 3222; Idem, 1176 m, 06°52'49.2"S, 79°06'52.5"W, Jul 26 2020, G. Pino & L.E. Alomía 3223; Idem, 1130 m, 06°52'44.1"S, 79°07'00.0"W, Jul 26 2020, G. Pino & L.E. Alomía 3224; Idem, 1118 m, 06°52'42.0"S, 79°07'01.1"W, Jul 26 2020, G. Pino & L.E. Alomía 3225; Idem, 1067 m, 06°52'32.9"S, 79°07'10.4"W, Jul 26 2020, G. Pino & L.E. Alomía 3226; Road from La Florida to Niepos, 1297 m, 06°53'6.9"S, 79°06'47.6"W, 28 Aug 2022, G. Pino et al. 3642 (USM 330885).

Figures

Figure 6. Peperomia emarginulata C. DC A colony growing on fallen Guadua angustifolia leaves B exposed plant growing on a rock C plant ex-situ showing 4 - angled stems and inflorescences D detail of the leaves E terminal umbella with spadices F spadices at the beginning of anthesis G mature spadix with seeds.