Sceptridium oneidense
| Sceptridium oneidense | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Ophioglossales |
| Family: | Ophioglossaceae |
| Genus: | Sceptridium |
| Species: | S. oneidense
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| Binomial name | |
| Sceptridium oneidense (Gilbert) Holub
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| Synonyms | |
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Sceptridium oneidense, the blunt-lobed grapefern, is a fern species in the family Ophioglossaceae.[1]
Description
[edit]The leaf blades of S. oneidense are ternately compound. The spores mature in late fall in panicles that rise above the sterile fronds.
Taxonomy
[edit]At first, S. oneidense was considered a variety of Botrychium dissectum, then a form of it, then possibly a hybrid species. However, after a more detailed study by Wagner in 1961, it was considered its own species.
Distribution and habitat
[edit]S. oneidense grows in moist woodlands in eastern United States and Canada from New Brunswick to Ontario and south to North Carolina. In Canada, it is a relatively rare species, usually only found in large groups of Botrychium obliquum.[2]
References
[edit]- ^ Christenhusz, Maarten J. M.; Zhang, Xian-Chun; Schneider, Harald (2011). "A linear sequence of extant families and genera of lycophytes and ferns" (PDF). Phytotaxa. 19: 7–54. doi:10.11646/phytotaxa.19.1.2.
- ^ Cody, William; Britton, Donald (1989). Ferns and Fern Allies of Canada. Agriculture Canada.
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