Polystichum × potteri explained

Polystichum × potteri, known as Potter's holly fern, is a hybrid between Polystichum braunii and Polystichum acrostichoides.^[1] It is named for Henry Potter, a Vermont farmer and botanist.^[2]

Range

Potter's holly fern has been documented in Vermont, New Hampshire, New York, Pennsylvania, Maine, Massachusetts, Quebec, Nova Scotia, and New Brunswick.^[3]

Taxonomy

Though formally described by David Barrington in 1986, this hybrid was first reported in 1940 by Thompson and Coffin.^{[4] [5]}

Notes and References

1. Web site: Polystichum × potteri Barrington Plants of the World Online Kew Science . 2024-10-19 . Plants of the World Online . en.
2. Web site: Polystichum × potteri Ferns and Lycophytes of the World . 2024-10-19 . en-US.
3. Web site: NatureServe Explorer 2.0 . Polystichum x potteri Potter's Holly Fern. 2024-10-19 . The Nature Conservancy.
4. Barrington . David S. . 1986 . The Morphology and Cytology of Polystichum × Potteri Hybr. Nov. (= P. Acrostichoides × P. Braunii) . Rhodora . 88 . 855 . 297–313 . 23312373 . 0035-4902.
5. Thompson . R. H. . Coffin . R. L. . 1940 . A Natural Hybrid between Polystichum braunii (Spenner) Fée and P. acrostichoides (Michx.) Schott. . American Fern Journal . 30 . 3 . 81–88 . 10.2307/1545054 . 1545054 . 0002-8444.