Botrychium pallidum

Botrychium pallidum

Vulnerable  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Ophioglossales
Family: Ophioglossaceae
Genus: Botrychium
Species:
B. pallidum
Binomial name
Botrychium pallidum
W.H.Wagner

Botrychium pallidum, the pale moonwort, is a species of segregate fern in the Ophioglossaceae family. It was originally described from Quebec, collected from a site near Baie-Sainte-Catherine.[2] Prior to its discovery by Warren H. Wagner, it was only known from a herbarium record sheet at the Universite de Laval.[3]

Description

Botrychium pallidum is a small, inconspicuous plant, usually growing to a height of 7 centimetres (2.8 in) or less.[4] It is usually smaller than Botrychium minganense.[2] It has pale leaves that vary from whitish to bluish green; the colour changes to green when moist.[1] Leaves are glaucous and divided into a bladelike trophophore and a fertile sporophore (spore-producing organ).[4]

Distribution

Pale moonwort is found in a variety of habitats both native and disturbed, including former mining sites, burned areas, and open, exposed hillsides. In the state of Colorado, it has been found only in high elevation, subalpine wetlands.[5] After its identification in 1990, it was known from sporadic, small colonies dotted throughout Colorado, Saskatchewan, Michigan, Ontario, and Quebec.[6] By 2006, a new population in Maine was identified by Art Gilman, then president of the New England Botanical Society.[3] A species was reportedly collected in Manitoba in 1959 near Otterburne.[7]

References

  1. ^ a b Palmer, Daniel D. (2018-05-25). Michigan Ferns and Lycophytes: A Guide to Species of the Great Lakes Region. University of Michigan Press. pp. 259, 356. ISBN 978-0-472-12365-0.
  2. ^ a b Gilman, Arthur V. (July 2004). "Botrychium pallidum Newly Discovered in Maine". American Fern Journal. 94 (3): 155–156. doi:10.1640/0002-8444(2004)094[0155:SN]2.0.CO;2. ISSN 0002-8444.
  3. ^ a b Lombard, Karen (2006). "Nebc Meeting News". Rhodora. 108 (934): 188–194. ISSN 0035-4902.
  4. ^ a b Sessa, Emily (2024-03-05). Ferns, Spikemosses, Clubmosses, and Quillworts of Eastern North America. Princeton University Press. p. 209. ISBN 978-0-691-22044-4.
  5. ^ White River National Forest (N.F.), Land and Resource Management Plan: Environmental Impact Statement. 2002. pp. 158–160.
  6. ^ Wagner, W. H.; Wagner, F. S. (1994). "Another Widely Disjunct, Rare and Local North American Moonwort (Ophioglossaceae: Botrychium subg. Botrychium)". American Fern Journal. 84 (1): 5–10. doi:10.2307/1547552. ISSN 0002-8444.
  7. ^ Staniforth, Richard J.; Friesen, Chris (2012-12-25). "Pale Moonwort in Manitoba: An Old Record Confirmed" (PDF). Blue Jay. 70 (4): 257–258. doi:10.29173/bluejay339. ISSN 2562-5667. Archived from the original on 4 November 2023.

Further reading

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