Carex haleakalensis Jim. Mejias, Larridon, Roalson & Garcia-Moro 2026, sp. nov.

作者：Pablo García‐Moro, RAÚL LOIS, Kerry A. Ford, Isabel Larridon, Germinal Rouhan, Eric H. Roalson, Pedro Jiménez‐Mejías · 发表于：Zenodo (CERN European Organization for Nuclear Research) · 年份：2026 · DOI：10.5281/zenodo.21474133 · 研究领域：Botany, Ecology, and Taxonomy Studies、Plant Ecology and Taxonomy Studies、Plant Taxonomy and Phylogenetics

Carex haleakalensis Jim. Mejías, Larridon, Roalson & García-Moro sp. nov. Figs 5 C, 6 C Holotype. Hawaii • East Maui, Kalapawili ridge above NE end of Haleakala Crater, 19 Jul 1969, J. Henrickson & R. Vogl 3894 (US 3090900! barcode 00436681; isotype: NY 03091289!). Diagnosis. Similar to C. delacosta Kunze, from which it can be distinguished by its smaller utricles and spikes (see identification key). Etymology. This species is named after the geographic area where it is found — the grass-dominated ridges around and radiating from the rim of Haleakalā Crater at the summit of East Maui. Description. Plants caespitose, with short rhizomes. Fertile culms 12–43 cm long, 0.7–1.1 mm wide, erect to slightly curved, shorter to longer than leaves, rarely flat to acutely trigonous, smooth. Leaves 10–26 cm long, the widest ones 2.3–4.0 mm wide, the uppermost leaf 1.5–2.7 mm wide, coriaceous to subcoriaceous, section flat to C-shaped, occasionally slightly M-shaped, the margins antrorsely scabrid. Inflorescence a solitary, androgynous spike, 3.0– 5.6 cm × 2.5–3.0 mm, bractless or occasionally the lowermost glume developing into a setaceous bract up to half-length of the spike, never surpassing it, long-oblong to linear, densely flowered, with ca. 20–30 pistillate flowers, ripe utricles adpressed to ascendant; staminate portion 3.6–10.0 mm long. Pistillate glumes from the middle part of the spike 4.0–4.8 × 1.8–2.5 mm, with 2.0– 2.8 mm from base to the widest point, 1.2–2.0 mm wide at half-...