Selaginella krugii Hieron.

  • Authority

    Proctor, George R. 1989. Ferns of Puerto Rico and the Virgin Islands. Mem. New York Bot. Gard. 53: 1-389.

  • Family

    Selaginellaceae

  • Scientific Name

    Selaginella krugii Hieron.

  • Description

    Deprecated: mb_convert_encoding(): Handling HTML entities via mbstring is deprecated; use htmlspecialchars, htmlentities, or mb_encode_numericentity/mb_decode_numericentity instead in /home/emu/nybgweb/www-dev/htdocs/science-dev/wp-content/themes/nybgscience/lib/VHMonographsDetails.php on line 179

    Species Description - Main stems 20-40 cm long, depressed or trailing, bearing rhizophores (4-10 cm long) nearly to the apex, ca. 1 mm thick, subflexuous, with numerous oblique-spreading altemate branches, these 3-15 cm long, the smaller ones simply pinnate, or the larger ones 2-pinnate and rhizophorous; plane of the main stem 5-6 mm broad (leaves included), of the ultimate branches 3-4 mm. Lateral leaves ofthe stem and main branches approximate, obliquely ovate-oblong, mostly 2.5-3 mm long, 1.5-2 mm broad, inequilateral, broadly acutish at apex, broadly rounded-subcordate at distal base, the margin here slightly sclerotic, rigidly and obliquely ciliolate to middle of blade, very minutely denticulate beyond; lateral leaves of ultimate branches slightly smaller, narrower, and less inequilateral; leaf-tissue firmly thin-herbaceous, bright to dark green adaxially. Median leaves rigid, 2-3 mm long, nonauriculate, ovate, carinate and abmptly subulate,the cusp nearly or quite as long as the blade; margins narrowly sclerotic, ciliate. Strobiles numerous, borne singly or in pairs on the ultimate branches, 2-6 mm long; sporophylls carinatecymbiform, ovate, long-acuminate, unequal, rigidly ciliolate-denticulate, mostly 1.5-2 mm long.

  • Discussion

    Fig. 11.

    Type. Eggers 895, from Quebrada de Jimenes, 800 m . Sierra de Luquillo, Puerto Rico (B, not seen; isotype US).

  • Distribution

    Endemic to Puerto Rico. Distribution in Puerto Rico. Known only from the Sierra de Luquillo and the Sierra de Cayey; recorded from Cayey, Ceiba, Naguabo, and Rio Grande. Habitat. On deeply-shaded humus and wet clay soil in montane forest at upper middle to high elevations (680-1050 m); occasionally on mossy tree-trunks.

    Puerto Rico South America| Cayey Puerto Rico South America| Ceiba Puerto Rico South America| Naguabo Puerto Rico South America| Río Grande Puerto Rico South America|