The Genus Ophioglossum in Pennsylvania

The Genus Ophioglossum in Pennsylvania

Three species of Ophioglossum are known from Pennsylvania. The distribution of Ophioglossum vulgatum Linnaeus and Ophioglossum pusillum Rafinesque is related to the glacial boundary in Pennsylvania. Ophioglossum engelmannii Prantl is known from only one county. Until this report, O. vulgatum was con...

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Veröffentlicht in:Bartonia 2004-01 (62), p.45-54
Hauptverfasser: Isaac, Bonnie L., Chuey, Carl F., Isaac, Joseph A.
Format: Artikel
Sprache:eng
Schlagworte:
Creeks
Deciduous forests
Dry forests
Forest regeneration
Herbaria
Meadows
Plants
Sporangia
State forests
Swamps
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Zusammenfassung:Three species of Ophioglossum are known from Pennsylvania. The distribution of Ophioglossum vulgatum Linnaeus and Ophioglossum pusillum Rafinesque is related to the glacial boundary in Pennsylvania. Ophioglossum engelmannii Prantl is known from only one county. Until this report, O. vulgatum was considered extirpated in the state. The status of O. pusillum should be reassessed, and O. engelmannii is endangered. A key to the species is provided.
ISSN:0198-7356