Phlegmariurus killipii (Herter) B.Øllg., Rodriguésia

Øllgaard, Benjamin, Boudrie, Michel & Cremers, Georges, 2020, The Lycopodiaceae of Guyana, Suriname, and French Guiana, Phytotaxa 433 (2), pp. 101-134 : 119-120

7. Phlegmariurus killipii (Herter) B.Øllg., Rodriguésia 63(2): 480. 2012. — Urostachys killipii Herter, Revista Sudamer. Bot. 10: 128. 1953 (publ. 1954).— Lycopodium killipii (Herter) C.V.Morton, Amer. Fern J. 54: 72. 1964.— Huperzia killipii (Herter) B.Øllg., Opera Bot. 92: 169. 1987.—Type: COLOMBIA: El Valle, La Cumbre, 1600–2100 m, Killip 11587 (holotype US [00135588]; isotype GH [GH00056286]). Fig. 10B .

Plants flaccidly pendulous, slender, at least to 50 cm long, at least to 10 times dichotomous. Shoots nearly homophyllous to gradually heterophyllous, tapering from ca. 10–18 mm in diam. incl. leaves at the base, to 3–5(–7) mm in terminal divisions, sometimes only slightly tapering. Stems excl. leaves 1–1.5 mm thick at the base, tapering to 0.5–0.8 mm upward. Leaves uniform throughout or gradually modified, borne in irregular, alternating whorls of 3(–4), these 1–3 mm apart, in terminal divisions sometimes subdecussate. Leaves of basal divisions spreading to ascending or loosely appressed, sometimes twisted at the base, linear-oblanceolate to elliptic, narrowly cuneate, acute to short-acute, 8– 11(–12) × (1–)1.2–1.8(–2.5) mm wide, almost flat or with slightly revolute margins, softly to firmly herbaceous, with smooth margins. Leaves of distal divisions conform or gradually shorter, narrower and more appressed, or abaxially convex, with involute margins. Leaves of sporangiate divisions 6-ranked or subdecussate, rarely with a clasping base and contracted into a short, involute, bluntly carinate apex, 2–5 × ca 0.6–1.5 mm. Sporangia ca. 1.5 mm wide.

Distribution: — Dominican Republic, Colombia, Venezuela (AM-BO), Ecuador, Guyana, Suriname, French Guiana.

Habitats:— Epiphytic in montane forest, 700–1135 m elev.

Specimens examined:— GUYANA: Upper Takutu-Upper Essequibo. Wassarai Mts. , 14 km S of S. Kassikaityu R., 1135 m, Clarke 8281 ( US) ; Upper Takutu-Upper Essequibo. Wassarai Mts. , 10.5 km S of S. Kassikaityu R., 900 m, Clarke 8633 ( US) .— SURINAME: Wilhelmina Mts, Julianatop , 810 m, Werkhoven 16720 ( BBS).— FRENCH GUIANA: Tumuc-Humac, summit of Paloulouiméenpeu, 700 m, Granville 1097 ( CAY) ; Bellevue de l’Inini Mts , Feuillet 3863 ( CAY) ; Bellevue de l’Inini Mts , 800 m, Cremers 9030 ( CAY) ; Atachi-Bakka Mt. , 700 m, Cremers 10301 ( CAY) .

Figures

FIGURE 10. A. Phlegmariurus robustus—(Venezuela, Stergios et al. 15769, AAU).A. Growth habit.A1. Close-up of basal division with expanded leaves.A2. Close-up of sporangiate division.—B. Phlegmariurus killipii—(Colombia, Schlim 1030, BR). B. Growth habit. B1. Close-up of basal division. B2. Terminal sporangiate division. Drawing by K. Tind.