Hierochloe redolens var. redolens

4.1. Hierochloe redolens var. redolens View in CoL .

Melica magellanica Desrousseaux View in CoL in Lamarck (1797: 72). Holotype: P00661598 digital image! Hierochloe magellanica (Desrousseaux) Hooker (1846: 92) View in CoL . Hierochloe redolens var. magellanica (Hooker) Macloskie (1904: 167) View in CoL .

Hierochloe arenaria Steudel (1855: 416) View in CoL . Syntype: S05-11189 digital image!.

Hierochloe moorei De Paula (1974: 393) View in CoL . Holotype: BAB00000235 digital image!.

Hierochloe sorianoi De Paula (1974: 396) View in CoL . Holotype: BAA00000184 digital image!.

Description: Caespitose plants; stems (25)40–100(300) cm; nodes in the culm glabrous. Leaf-blades 15–55 cm × 5–12 mm, flat, deeply ridged, scabrous adaxially and glabrous abaxially. Panicle (5)7–20(25) × 0.7–5 cm, open, lanceolate, without spikelets in the lower third. Pedicels shorter than the spikelets, pubescent. Spikelets 6.5–14 mm, cuneate. Glumes lanceolate. Glumes longer than the spikelet. Lower glume 5–12 mm, 1-veined; upper glume 4–14 mm, 3- veined. Lemma of male florets 5.5–10 mm, elliptic or oblong, membranaceous, scaberulous, ciliolate on margins, obtuse. Awn 2-6-mm, subapically inserted. Lemma of apical female floret membranaceous, glabrous in the lower part and scabrous in the upper part. Muticous or awned, but awn always shorter than 1 mm.

Leaf anatomy: Stomata 20–50 μm, in the adaxial surface. Hooks present. Leaf section closed with 20–40 quadrangular ribs.

Habitat: Wet meadows, 0–3850 m a.s.l. ( De Paula 1975, Sede 2012).

Distribution: Disjunct distribution in South America. From Venezuela to Peru and from central Chile and Argentina to Falkland Islands. Tropical-alpine at low latitudes ( De Paula 1975, Sede 2012).

Genome size and DNA-ploidy levels: 2C = 18.34–20.42 pg, 6 x.

Phenology: October–April.

Specimens examined:— ARGENTINA. Tierra del Fuego, Antártida e Islas del Atlántico Sur: Tierra del Fuego: Herberton: Moat, 28 December 2008, P. Catalán s.n. (SANT-76647, SANT-76649). Tierra del Fuego: Lake Roca, 3 January 2009, P. Catalán s.n. (SANT-76648). Tierra del Fuego, 1774 (C-10017002).— CHILE. Magallanes and Chilean Antarctica Region: Lago Roca, 3 January 2009, P. Catalán s.n. (SANT-65929). Porvenir: Cape Boqueron, slope at the edge of the road, 29 m, S 53º 28.150’ W 070º 14.122’, 19 January 2014, E. Sahuquillo & M. Pimentel s.n. (SANT-73533). Cameron: Cape Cameron: Inutil Bay, shrub and coastal pasture on cliff, 28 m, S 53º 39.500’ W 069º 44.476’, 19 January 2014, E. Sahuquillo & M. Pimentel s.n. (SANT-73534). Cameron: Cape Cameron, pasture grazed by cattle near the cliff, 25 m, S 53º 39.245’ W 069º 42.729’, 19 January 2014, E. Sahuquillo & M. Pimentel s.n. (SANT-73532). Torres del Paine N.P.: above Lake Grey, Nothofagus pumilio open forest with Escallonia, Gaultheria, Berberis , etc. shrubs, 56 m, S 51º 07.460’ W 073º 07.785’, 21 January 2014, E. Sahuquillo & M. Pimentel s.n. (SANT- 73535).— PERU. Department of Ancash: Yungay Prov.: Huascaran N.P., between Lake Llanganuco and Portachuelo, grassland with a few scattered shrubs, 4420–4620 m, S 9º 03’ W 77º 36’, 16 August 1984, D.N. Smith s.n. (US- 3097904). Department of Cajamarca Province: Cajamarca Province: road from Cajamarca to Bambamarca, on side road to Chugur ( 101 km from Cajamarca), grass paramo with scattered patches of scrub forest, 3550 m, 20 March 1988, S.A. Renvoize, S. Laegaard & I. Sánchez Vega s.n. (US-3480791).