Ophioglossum reticulatum L.
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Authority
Mickel, John T. & Smith, Alan R. 2004. The pteridophytes of Mexico. Mem. New York Bot. Gard. 88: 1-1054.
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Family
Ophioglossaceae
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Scientific Name
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Description
Species Description - Stems erect, cylindrical, 3–5 mm diam.; roots unbranched; fronds usually single, 7–40 cm long, basal sheaths conspicuous, leathery, persistent; sterile blades 1.5–9 x 1.2–5 cm, sessile or short-stalked, broadly ovate to nearly reniform, bases cordate or truncate, apices obtuse to sometimes acute, with minute apiculum when young; venation reticulate, areoles with included free veinlets; fertile spikes 6–23 cm long, 1–4 times the length of the sterile blades; 2n =ca. 960 (Jam), 872, 960, ca. 1140, ca. 1260 (India).
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Discussion
Lectotype (chosen by Proctor, Fl. L. Antill. 2: 43. 1977). Plumier, Traite´ Foug. Amer., pl. 164. 1705, illustrating a plant from Hispaniola.
Ophioglossum reticulatum is the most common species of the genus in Mexico and is distinguished by the cordate blade bases and cylindrical rhizomes. All species of Ophioglossum are notoriously difficult to find but probably more widespread and common than collections indicate.
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Distribution
Terrestrial in grassy fields and open or light woods; 900-2200 m. Mexico; Guat, Hond, Nic, CR, Pan; Gr & L Ant; Col, Ven, Guy, Sur, Fr Gui, Ec, Peru, Braz, Bol, n Arg; trop Africa, Asia.
Mexico North America| Asia| Africa| Argentina South America| Bolivia South America| Brazil South America| Peru South America| Amazonas Ecuador South America| French Guiana South America| Suriname South America| Guyana South America| Venezuela South America| Colombia South America| West Indies| Panama Central America| Costa Rica South America| Nicaragua Central America| Honduras Central America| Guatemala Central America|