Urostachys wilsonii (Underw. & F.E.Lloyd) Herter, Repert., 2020

Øllgaard, Benjamin, Boudrie, Michel & Cremers, Georges, 2020, The Lycopodiaceae of Guyana, Suriname, and French Guiana, Phytotaxa 433 (2), pp. 101-134 : 125-126

14. Phlegmariurus wilsonii (Underw. & F.E.Lloyd) B.Øllg., Rodriguésia 63(2): 481. 2012.— Lycopodium wilsonii Underw. & F.E.Lloyd, Bull. Torrey Bot. Club 33: 111. 1906.— Urostachys wilsonii (Underw. & F.E.Lloyd) Herter, Repert. Spec. Nov. Regni Veg. 19: 163. 1923.— Huperzia wilsonii (Underw. & F.E.Lloyd) B.Øllg., Opera Bot. 92: 170. 1987.—Type: PUERTO RICO, Luquillo Mountains, Wilson 271 (holotype NY). Note: According to the protologue, the type is Wilson 271, but Wilson 153 (NY [126956]) is annotated by the author as sp. nov. and fits the description, while Wilson 271 (NY) is Phlegmariurus dichotomous and is not annotated as sp. nov. Fig. 13 .

Lycopodium andinum Herter, Bot. Jahrb. 43: Beibl. 98: 49. 1909, non Rosenst. 1908.— Lycopodium lindavianum Herter, Hedwigia 49: 90. 1909.— Urostachys lindavianus (Herter) Nessel, Bärlappgewächse 146. 1939.— Huperzia lindaviana (Herter) Holub, Folia Geobot. Phytotax. 20: 74. 1985.—Type: ECUADOR: In territorio rei publ. Ecuador, Herb. Drake, Fraser s.n. (lectotype P [P00559252]; isolectotype G); designated by Øllgaard (1988: 97).

Lycopodium trichodendron Herter, Bot. Jahrb. 43: Beibl. 98: 49. 1909.— Urostachys trichodendron (Herter) Herter, Repert. Spec. Nov. Regni Veg. 19: 163. 1909.—Types: GUADELOUPE: L’Herminier s.n. (lectotype P! [P00559253]), designated by Herter (1923: 163). Remaining syntypes:—GUADELOUPE: L’Herminier 103 (P! [P00559254], US [00135544]-fragm.). PUERTO RICO: Sierra de Luquillo, 13 July 1885, Sintenis 1543 (B, P [P00559256, P00559257, P00559258]. COLOMBIA: Schmidtchen s.n. (B), Lehmann 8908 (B).

Lycopodium stamineum Maxon, Smithsonian Misc. Coll. 56 (29): 2, pl. 2. 1912.— Urostachys stamineus (Maxon) Nessel, Bärlappgewächse 148. 1939. Type:— PANAMA. Chiriquí: Above El Boquete, ca 1750 m, Maxon 5636 (holotype US [00135540]).

Lycopodium arcanum Maxon , in Yuncker, Field. Mus. Publ. Bot. 17: 310, pl. 3. 1938. Type:— HONDURAS. Comayagua, above El Achote, above plains of Siguatepeque, 1800 m, Yuncker, Dawson & Youse 6149 (holotype US [00135505]).

Urostachys mandiocanus (Raddi) Herter var. filifolius Herter, Revista Sudamer.Bot. 10: 124. 1953. Type:— ECUADOR. Morona-Santiago: Eastern slope of eastern cordillera, bank of Palora river, 1500 m, Rimbach 125 (holotype US [00135597]).

Plants erect, arcuate-spreading to pendulous, to 20(–30) cm long. Shoots homophyllous, 15–25(–30) mm in diam. incl. leaves, equally thick throughout, or tapering to 10–15 mm distally. Stems excl. leaves (1–)1.5–2(–3) mm thick at the base, ridged by decurrent leaf bases, pale green to stramineous, often with bright red spots on leaf bases. Leaves uniform throughout, borne in irregular, alternating whorls of 6–7 in basal divisions, upwards often in whorls of 4–5, perpendicularly spreading to ascending, straight to upward curved, usually not twisted at the base, linear to filiform, (6–)10–17 × 0.3–0.5 mm, quickly narrowed to ca 0.2 mm wide due to involution, adaxially canaliculate to involute, sometimes with recurved margins. Distal leaves in old plants sometimes gradually reduced to 6(–4) mm long. Decurrent leaf bases usually not wider than lamina base, often bright red. Sporangia 1–1.5 mm wide.

Distribution: —Southern Mexico to Panamá, Greater and Lesser Antilles, Colombia, Trinidad, Venezuela (AM- AR-BO), Suriname, Ecuador, Peru, Bolivia, Brazil.

Habitats: —Epiphytic (rarely terrestrial) in mid-altitude and montane forest, 700–1400 m elev.

Specimens examined:— SURINAME: Emmaketen mountains, Zuidlijn, 2 km van splitsing, 700 m, 4 Aug 1959, Daniels & Jonker 825 (U).

Figures

FIGURE 13. Phlegmariurus wilsonii—(Colombia, Juncosa 2502, AAU). A. Growth habit.A1. Fertile terminal division.