Arenaria stuebelii Hieron., Botanische Jahrbuecher fuer Systematik, Pflanzengeschichte und Pflanzengeographie 21(3): 307. 1895.

Montesinos-Tubee, Daniel B. & Iamonico, Duilio, 2023, Neotypification for five names linked to Arenaria (Caryophyllaceae) for the endemic flora of Peru and Bolivia, PhytoKeys 230, pp. 131-144 : 131

Arenaria stuebelii Hieron., Botanische Jahrbuecher fuer Systematik, Pflanzengeschichte und Pflanzengeographie 21(3): 307. 1895.

Neotype

(designated here). Bolivia. Hernando Siles: Azero, Nov-Dec 1845, M.H. Weddell 3691 (P-05139758!, Fig. 6 , http://mediaphoto.mnhn.fr/media/1441409343048mmKRKfSJcLXpH0CF).

Hieronymus (1895: 307) provided a detailed description of Arenaria stuebelii , citing the following syntype (Art. 9.6 of ICN): "Bolivia: crescit locis aridis Puna dictis supra Taca in valle Yungas, ubi floret mense dicembri (coll. boliv. n. 48d)". We have been unable to locate a specimen collected by M.A. Stüebel (the botanists who Hieronymus dedicated the species) and numbered as 48d at B (where Stüebel’s herbarium and type are preserved; HUH-Index of Botanists 2013c), since they were mostly destroyed during the II World War. After an exhaustive investigation of different plant material collected near locus classicus, we here decide to designate a specimen from P (barcode P-05139758) as the neotype of the name Arenaria stuebelii .

Description.

Herb with numerous stems branching from the taproot, 10-30 cm long, ascending and covered with minute trichomes varying from 0.1-0.2 mm long; leaves linear to narrowly linear-lanceolate, acute or acuminate, pubescent on the adaxial and abaxial sides, lamina ca. 8 mm × 1 mm; flowers with long pedicels, puberulent or scarious; sepals ovate, with scarious margins, 3-4 mm long × 2 mm wide; petals white, ovate-oblong, obtuse, 6-7 mm long × 3 mm wide; seeds globose, flattened, black, smooth and shiny.

Specimens examined.

Bolivia. Tarija: Arce, Municipio Padcaya, Reserva Nacional de flora y fauna Tariquía, 2457 m, 27 Apr 2005, M. Serrano et al. 6327 (MO-5956858!); Franz Tamayo: Parque Nacional Madidi, 2810 m., 23 Jun 2005, A. Fuentes & E. Cuevas 8622 (MO-5956863!) ; La Paz: Sud Yungas, Chulumani , 1972 m, 27 jun 2007, D. Ibañez & R. Hurtado 603 (B-100720358!) ; La Paz: Sud Yungas, Yanacachi a la Chojlla, 2100 m, 7 Sep 1987, E. Vargas & R. Seidel 496 (B-100720356!) .

Figures

Figure 6. Neotype of Arenaria stuebelii Hieron. (M. H. Weddell 3691, P 05139758).