Editing Botrychium (section)

{{Short description|Genus of ferns in the family Ophioglossaceae}}
{{Italic title}}
{{Automatic taxobox
| name = Moonwort
| image = Botrychium-4.jpg
| image_caption = ''Botrychium lunaria''
| taxon = Botrychium
| authority = [[Olof Swartz|Sw.]]
| type_species = ''[[Botrychium lunaria]]''
| type_species_authority = (L.) Swartz
| subdivision_ranks = [[Species]]
| subdivision = [[#Phylogeny|see text]]
| synonyms=
}}

'''''Botrychium''''' is a genus of [[fern]]s, seedless [[vascular plant]]s in the family [[Ophioglossaceae]].<ref name="Christenhusz_2011b">{{cite journal | last1 = Christenhusz | first1 = Maarten J. M. | last2 = Zhang| first2 = Xian-Chun | last3 = Schneider | first3 = Harald | year = 2011 | title = A linear sequence of extant families and genera of lycophytes and ferns | url = http://www.mapress.com/phytotaxa/content/2011/f/pt00019p054.pdf | journal = Phytotaxa | volume = 19 | pages = 7–54 | doi = 10.11646/phytotaxa.19.1.2 }}</ref> ''Botrychium'' species are known as '''moonworts'''. They are small, with fleshy [[root]]s, and reproduce by [[spore]]s shed into the air. One part of the leaf, the trophophore, is sterile and fernlike; the other, the [[sporophore]], is fertile and carries the clusters of sporangia or spore cases.  Some species only occasionally emerge above ground and gain most of their nourishment from an association with mycorrhizal [[fungus|fungi]].

<!-- [[Image:BotrychiumLunaria1.jpg|left|frame|Moonwort (''Botrychium lunaria'')]] [messes up layout real bad. Not in Commons, so it is left here for species article] -->
The circumscription of ''Botrychium'' is disputed between different authors; some botanists include the genera ''[[Botrypus]]'' and ''[[Sceptridium]]'' within ''Botrychium'', while others treat them as distinct. The latter treatment is provisionally followed here.