Hierochloe redolens Roemer & Schultes 1817

• Main Authors: Lema-Suárez, Irene, Sahuquillo, Elvira, Pimentel, Manuel
• Format: Other/Unknown Material
• Language: unknown
• Published: 2021
• Subjects: Biodiversity; Taxonomy; Plantae; Tracheophyta; Liliopsida; Poales; Poaceae; Hierochloe; Hierochloe redolens; Argentina; Lemma; Antarc*; Antarctica; Antártida; Tierra del Fuego
• Online Access: https://zenodo.org/record/5481264; https://doi.org/10.5281/zenodo.5481264

4. Hierochloe redolens (Vahl 1791: 102) Roemer & Schultes (1817: 514). Basionym: Holcus redolens Vahl (1791: 102). Type:— ARGENTINA. Tierra del Fuego, Antártida e Islas del Atlántico Sur: Habitat in Tierra del Fuego. Vahl (1791) (holotype: C10017002 digital image!). Homotypic names: Avena redolens (Vahl) Persoon (1805: 100), Torresia redolens (Vahl) Roemer & Schultes (1817: 516), Hierochloe antarctica var. redolens (Vahl) Brongniart (1829 [1833]: 144), Anthoxanthum redolens (Vahl) P. Royen (1979: 1185). Description: Stems (25)40–200(300) cm. Robust, 3–5 nodes.Ligules triangular or obtuse.Leaf-blades flat or convolute, glabrous, pubescent, scaberulous or scabrous; apex acuminate. Panicle spiciform, slightly contracted or open, linear or lanceolate, interrupted or not, narrowing to the apex. Rhachis glabrous, pubescent, scaberulous or scabrous. Spikelets 5–14 mm long, usually cuneate or, in some species, oblong, without rhachilla extension. Glumes lanceolate or ovate, 1-keeled, 1- or 3-veined, with apex acute or obtuse. Glumes shorter, equal or larger than the florets. Lemma of male florets, membranaceous or papyraceous, 5-veined, awned, with awns apically or subapically inserted. Lemma of apical female floret ovate, unkeeled, 5-veined; muticous, mucronated or awned. Leaf anatomy: Leaf surface with long cells type I3 and short cells S5. Stomata in the adaxial or in both surfaces. Hooks sometimes present but usually scarce. Cilia absent. Bulliform cells present or absent. Leaf section open, with quadrangular ribs or alternate quadrangular and triangular ribs. Median vascular bundle sheath complete and midrib not differentiated. Subepidermal sclerenchyma discontinuous adaxially and continuous or discontinuous abaxially, concurring with the vascular bundles. Genome size and DNA-ploidy levels: 2C = 13.28 pg, 4 x (one specimen of H. redolens var. spicata); 2C = 16.89–20.42 pg, 6 x, and 2C = 27.04–27.43 pg, 12 x (three specimens of H. redolens var. altissima). Habitat: Sandy soils in coastal areas and riverbanks ...