Phegopteris
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publication ID |
https://doi.org/ 10.3417/2019409 |
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DOI |
https://doi.org/10.5281/zenodo.5936099 |
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persistent identifier |
https://treatment.plazi.org/id/EF078780-6244-345B-05C4-FE73FB2A5682 |
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treatment provided by |
Donat |
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scientific name |
Phegopteris |
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KEY TO NORTH AMERICAN PHEGOPTERIS View in CoL
1. Blades of fronds elongate, widest toward the middle......................... P. decursive-pinnata (H. C. Hall) Fée View in CoL
1 '. Blades of fronds widest at the base.
2. Blades of fronds usually slightly wider than long; all pinnae, including proximal pair, winged to rachis; proximal pinnae (2–)3X as long as wide............................................. P. hexagonoptera (Michx.) Fée View in CoL
2 '. Blades of fronds longer than wide; pinnae winged to rachis except proximal pair not winged to rachis (rarely, more than one proximal pinna pair not winged in P. connectilis View in CoL ); proximal pinnae 4–5X as long as wide.
3. Blade outline ovate, proximal pinnae strongly declined and adaxially inflexed, average 4X as long as wide; spore length averaging 55 ± 5.4 μ m...................................... P. connectilis (Michx.) Watt View in CoL
3'. Blade outline triangular, proximal pinnae slightly to moderately declined and adaxially inflexed, average 5X as long as wide; spore length averaging 64 ± 4.6 μ m......... P. excelsior N. R. Patel & A. V. Gilman View in CoL
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