Ophioglossum


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Ophioglossum

 

a genus of ferns of the family Ophioglossaceae, including mostly low herbs. Only a few tropical species are epiphytic, with the leaves reaching 2.7 m in length. The leaves are for the most part entire or lobed. The sporangia are sessile and open transversely. Some species reproduce vegetatively by means of adventitious buds formed on the roots. The prothallia (gametophytes) are usually cylindrical and subterranean; those developing aboveground contain chlorophyll. There are about 45 species, distributed in the tropical and, less commonly, temperate zones of both hemispheres. Of the three or four species found in the USSR, the most common is the adder’s-tongue (O. vulgatwn), which grows in moist meadows and amid shrubbery.

References in periodicals archive ?
The spores of Ophioglossum crotalophoroides Walt, and Sceptridium dissectum (Spreng.
The native species with the lowest elevational range is Ophioglossum polyphyllum (Ophioglossaceae), occurring at 2--160 m.
Botrychium lunarioides is often associated with another inconspicuous family member, Ophioglossum crotalophoroides (bulbous adder's-tongue).
This viewpoint is also accepted by Bower (1935) who regards Ophioglossum, with its reticulate venation, as a derived type.
Note: the 15 species of ferns and allies collected at Wilbur Wright Fish and Wildlife Area include Ophioglossum vulgatum L.
Ophioglossum engelmannii Prantl, Limestone Adder's-tongue.
Herbaceous species unique to this forest type are Asplenium platyneuron, Agrimonia pubescens, Liparis liliifolia, and Ophioglossum vulgatum.
Despite this, during the research six new taxa were discovered in the genera Cheilanthes, Isoetes, Ophioglossum, Pilularia, and Selaginella.
Lellinger grows on trees) --Indicator of cardinal points --Muscular toner, menstrual analgesic, treatment to ease child birth, post partum washing Ophioglossum kochi apia'i --For colds reticulatum L.
Fern Clade #3 consists of the eusporangiate ferns Ophioglossum + Botrychium (i.
In a study by Whittier and Moyroud (1993), spores of Ophioglossum palmatum L.
1980; Gunning, 1981; Kurth & Gifford, 1985), Asplenium (Gifford, 1991), Osmunda (Freeberg & Gifford, 1984), and Ophioglossum (Peterson & Brisson, 1977).