Phlegmariurus watsonianus ­­­ (Maxon) B. Øllgaard (2012b: 20)

Øllgaard, Benjamin & Testo, Weston, 2021, The Lycopodiaceae of Panamá, Phytotaxa 526 (1), pp. 1-66 : 44-45

0.­­­ Phlegmariurus watsonianus ­­­ (Maxon) B. Øllgaard (2012b: 20) . Fig. 19A

Lycopodium watsonianum Maxon (1912: 3) .— Huperzia watsoniana (Maxon) B. Øllgaard (1992: 701) . Type:— PANAMÁ, Chiriquí, Upper Caldera River, near Camp I, Holcombs Trail, above El Boquete, 1600 m, Mar. 1911, Maxon 5712 ( US 676223 holotype).

Flaccidly pendulous, slender, at least up to 35 cm long. Shoots homophyllous or almost so, equally thick throughout, 5–10 mm in diam. incl. leaves in basal divisions, sometimes tapering to ca 5 mm. Stems excl. leaves 0.5–0.8 mm thick. Leaves borne in alternating, irregular whorls of 3–4, these 1–1.5 mm apart, spreading to ascending, or rarely loosely appressed in terminal divisions, usually twisted at the lamina base, straight to slightly upward curved, linear to linearsubulate, with distinctly widened, subauriculate, usually strongly revolute, often overlapping lamina bases, 4–6 (–9) × 0.4–0.6 mm just above the auriculate base, usually ca. 0.3 mm wide in the middle, with obscure to prominent vein, with the auricles irregularly toothed. Sporangia 0.7–1 mm wide.

­­­ Distribution:— El Salvador to Panamá.

­­­ Habitats:—Epiphytic in humid forest, 1900–2500 m elev.

­­­ Notes: Closely related to Phlegmariurus sarmentosus (Spring) Trevisan (Andes) , but smaller in all parts.

­­­ Specimens­­­studied:— Bocas­­­del­­­Toro: Headwaters of Río Colubre, 2400–2500 m, Gómez et al. 22401 (MO). Valle de Silencio, Forest, Antonio 1652 (MEXU, MO, PMA). Chiriquí: Above Guadalupe, ca 2 km N of Cerro Punta, 2200 m, Maas & Dressler 4895 (U, Z). Parque Internacional La Amistad, bajada hacia la cascada, Araúz & Villareal 775 (PMA). Above Cerro Punta, ca 2 mi E of Guadalupe, along Río Chiriquí Viejo, McAlpin 1450 (F, MO). Bugaba, Cerro Punta, 2200 m, van der Werff & Herrera 6452 (MO). Cerro Punta, Florpan, RA 2969 (PMA). Vicinity of Bajo Chorro, 1900 m, Woodson & Schery 690 (AAU, GH, MO, US).