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Ophioglossum petiolatum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Ophioglossales
Family:	Ophioglossaceae
Genus:	Ophioglossum
Species:	O. petiolatum
Binomial name
Ophioglossum petiolatum Hook.
Synonyms
Ophioglossum elongatum A.Cunn. Ophioglossum floridanum E.P.St.John Ophioglossum floridanum f. favosum E.P.St.John Ophioglossum floridanum f. reticulosum E.P.St.John Ophioglossum litorale Makino Ophioglossum moluccanum Schltdl. Ophioglossum moluccanum f. complicatum Miq. Ophioglossum namegatae Nish. & Kurita Ophioglossum reticulatum f. complicatum (Miq.) Wieff. Ophioglossum vulgatum var. australasiaticum Luerss.

Ophioglossum petiolatum is a species of fern in the family Ophioglossaceae. William Jackson Hooker named this species in 1823.

The species occurs in parts of Asia, Australia, and North America.

Common names

According to Encyclopedia of Life, in English the species goes by the common name longstem adderstongue or long-stem adder's-tongue.

Some universities, including the Missouri Department of Conservation, give it the common name stalked adder's-tongue.

Description

It contains about 50 to 150 chloroplasts per epidermal cell and more than 200 in mesophyll cells.

It grows quickly in pots making it suitable for botany instruction.

Distribution

This section needs expansion with: The sources say a lot more on this and there are more sources on this as well.. You can help by adding to it. (October 2021)

Ophioglossum petiolatum has a tropical and subtropical distribution in South America and Africa. It was probably introduced to North America early in the 1900s. It is found in Hawaii but may have been introduced recently. It was introduced to other states in the United States. In the state of Missouri it only occurs in Pemiscot County. In Alabama it is present in 5 counties. In Virginia it is present in 3 counties, first being reported in the state on the lawn of Tabernacle United Methodist Church in the year 1979.

It is rare in New Zealand. Robert Malcolm Laing was the first to record this species in Norfolk Island.

References

1. ^ "Ophioglossum petiolatum". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 20 October 2021.
2. ^ "Longstem adderstongue". The Encyclopedia of Life.
3. Snyder, Lloyd H. Jr.; Bruce, James G. (1986-10-01). Field Guide to the Ferns and Other Pteridophytes of Georgia. University of Georgia Press. ISBN 978-0-8203-2385-5.
4. "Ophioglossum petiolatum - Species Details". Atlas of Florida Plants. Retrieved 2021-10-18.
5. ^ "Ophioglossum petiolatum - Species Page - APA: Alabama Plant Atlas". www.floraofalabama.org. Retrieved 2021-10-18.
6. ^ "Adder's Tongues". Missouri Department of Conservation. Retrieved 2021-10-18.
7. Butterfass, T. (2012-12-06). Patterns of Chloroplast Reproduction: A Developmental Approach to Protoplasmic Plant Anatomy. Springer Science & Business Media. p. 20. ISBN 978-3-7091-8561-2.
8. Committee, Flora of North America Editorial; Morin, Nancy R. (1993). Flora of North America: Volume 2: Pteridophytes and Gymnosperms. OUP USA. ISBN 978-0-19-508242-5.
9. ^ "Flora of New Zealand | Taxon Profile | Ophioglossum petiolatum". www.nzflora.info. Retrieved 2021-10-18.
10. Yarborough, Sharon C.; Powell, A. Michael (2002). Ferns and Fern Allies of the Trans-Pecos and Adjacent Areas. Texas Tech University Press. ISBN 978-0-89672-476-1.
11. Palmer, Daniel Dooley (2003-01-01). Hawai'i's Ferns and Fern Allies. University of Hawaii Press. p. 199. ISBN 978-0-8248-2522-5.
12. "Digital Atlas of the Virginia Flora | Ophioglossum petiolatum Hook". vaplantatlas.org. Retrieved 2021-10-20.
13. Coyne, Peter (2011-12-01). Norfolk Island's Fascinating Flora. Peter Coyne. p. 125. ISBN 978-0-9806528-2-6.

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