Salicornia Linnaeus 1753
Creators: name: Alonso, M. Ángeles
name: Crespo, Manuel B.
name: Freitag, Helmut
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Salicornia

description: Key to the South American species of Salicornia:— The key below is based on that by Alonso & Crespo (2008), to which the new species has been added:
1. Plants densely pulvinate, up to 5 cm high and 25 cm in diameter. Leaves carinate. Inflorescence globose, ca. 1.5–2 × 2 mm. Seeds with short, thick papillalike hairs only near micropylar area ........................................................................................... S. pulvinata
− Plants erect to prostrate, never pulvinate, higher and large. Leaves not carinate. Inflorescence longer than wide, ca. 5–150 × 1.5–5 mm. Seeds covered with long, spreading or appressed hairs at least on the edges, or rarely papillate..............................................2
2. Stems mostly erect or ascending, up to 80(–150) cm high, not rooting at nodes (occasionally with some weak roots at basal nodes). Inflorescence ca. 10–150 mm long.....................................................................................................................................................3
− Stems prostrate or procumbent, up to 15 cm high, rooting at nodes. Inflorescence ca. 5–20(–40) mm long....................................4
3. Inflorescence ca. 50–150 × 1–3(–4) mm; terminal spike solitary, rarely with a few lateral ones. Seeds with appressed straight hairs, mostly on the edges ........................................................................................................................................................... S. ambigua
− Inflorescence ca. 10–40(–60) × 3–4 mm; terminal spike usually accompanied with many shorter lateral ones. Seeds covered all over with long, spreading, hooked or curved hairs ................................................................................................................... S. neei
4. Stems clearly suffruticose. Roots thick. Seed testa covered with appressed hairs, mostly on the edges............................. S. andina
− Stems very weakly suffruticose, delicate, creeping. Roots thin and fragile. Seed testa covered all over with spreading, erect hairs.............................................................................................................................................................................................................5
5. Inflorescence 8–14(–16) × (3–) 4–5 mm wide. Seeds 1.3 × 0.9 mm; hairs on testa straight or slightly curved, many of them bifid .. ..................................................................................................................................................................................... S. magellanica
− Inflorescence (8–)16–30(–40) × (2–)2.5–3(–4) mm. Seeds 0.9 × 0.7 mm; hairs on testa straight and simple, accompanied with some papillae .................................................................................................................................................................. S. cuscoensis
description: Published as part of Alonso, M. Ángeles, Crespo, Manuel B. & Freitag, Helmut, 2017, Salicornia cuscoensis (Amaranthaceae / Chenopodiaceae), a new species from Peru (South America), pp. 254-262 in Phytotaxa 319 (3) on page 258, DOI: 10.11646/phytotaxa.319.3.4, http://zenodo.org/record/13699286