Ophioglossum petiolatum explained

Ophioglossum petiolatum is a species of fern in the family Ophioglossaceae. William Jackson Hooker named this species in 1823.^[1]

The species occurs in parts of Asia, Australia, and North America.^[2]

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.^{[3] [4] [5]}

Description

It contains about 50 to 150 chloroplasts per epidermal cell and more than 200 in mesophyll cells.^[6]

It grows quickly in pots making it suitable for botany instruction.^[7]

Distribution

Ophioglossum petiolatum has a tropical and subtropical distribution in South America and Africa.^[2] It was probably introduced to North America early in the 1900s.^[8] It is found in Hawaii but may have been introduced recently.^[9] 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.^[10]

It is rare in New Zealand.^[11] Robert Malcolm Laing was the first to record this species in Norfolk Island.^[12]

Notes and References

1. Book: Snyder . Lloyd H. Jr. . Field Guide to the Ferns and Other Pteridophytes of Georgia . Bruce . James G. . 1986-10-01 . University of Georgia Press . 978-0-8203-2385-5 . en.
2. 17167890-1 . Ophioglossum petiolatum . 20 October 2021.
3. Web site: Ophioglossum petiolatum - Species Details . 2021-10-18 . Atlas of Florida Plants.
4. Web site: Ophioglossum petiolatum - Species Page - APA: Alabama Plant Atlas . 2021-10-18 . www.floraofalabama.org.
5. Web site: Adder's Tongues . 2021-10-18 . Missouri Department of Conservation . en.
6. Book: Butterfass, T. . Patterns of Chloroplast Reproduction: A Developmental Approach to Protoplasmic Plant Anatomy . 2012-12-06 . Springer Science & Business Media . 978-3-7091-8561-2 . 20 . en.
7. Book: Committee . Flora of North America Editorial . Flora of North America: Volume 2: Pteridophytes and Gymnosperms . Morin . Nancy R. . 1993 . OUP USA . 978-0-19-508242-5 . en.
8. Book: Yarborough . Sharon C. . Ferns and Fern Allies of the Trans-Pecos and Adjacent Areas . Powell . A. Michael . 2002 . Texas Tech University Press . 978-0-89672-476-1 . en.
9. Book: Palmer, Daniel Dooley . Hawai'i's Ferns and Fern Allies . 2003-01-01 . University of Hawaii Press . 978-0-8248-2522-5 . 199 . en.
10. Web site: Digital Atlas of the Virginia Flora Ophioglossum petiolatum Hook.. 2021-10-20. vaplantatlas.org.
11. Web site: Flora of New Zealand Taxon Profile Ophioglossum petiolatum. 2021-10-18. www.nzflora.info.
12. Book: Coyne, Peter . Norfolk Island's Fascinating Flora . 2011-12-01 . Peter Coyne . 978-0-9806528-2-6 . 125 . en.