botrychium การใช้

• While some Botrychium species are quite rare, conservation efforts can be difficult.
• Older fern classifications took a broad circumscription of " Botrychium " and included the genus in family Ophioglossaceae.
• A locally rare fern, moonwort, " Botrychium lunaria " is one of the less common species.
• The moss genus " Aongstroemia " ( taxonomist, he was the binomial authority of several plants within the genus " Botrychium ".
• The Dark Peak is characterised by heathlands, bogs, gritstone edges and acid grasslands containing relatively few species, with plants such as moonwort ( " Botrychium lunaria " ).
• This plant has long been included in the genus " Botrychium ", but was unique within the genus because of chromosome number and other signatures, including the inclusion of presumed mistletoe DNA within its mitochondria.
• In addition to having mycoheterotrophic gametophytes, there are a few members of " Botrychium " that are unique among ferns in having the sporophytes also mycoheterotrophic, producing only small, ephemeral sporophylls that do not photosynthesize.
• Recent research has established that this plant is sister to all other Botrychioid plants, including both the genus " Botrychium " sensu strictu, and the genus " Sceptridium ", with the exception of a single known species, previously included in " Botrypus ", which is " B . strictus ".
• Because Miss Hauxwell employed traditional farming practices, with no re-seeding and no artificial fertilisers, the meadows are thought to be the least improved in upland Durham, and, as a result, have a very rich floral composition, including rare species such as frog orchid, " Coeloglossum viride ", moonwort, " Botrychium lunaria ", and adder's-tongue, " Ophioglossum vulgatum ".
• They differ from the moonworts in having at least some sterile fronds ( all fronds in " Botrychium " are spore-bearing ), and in the fronds being bi-or tri-pinnate ( " Botrychium " are single pinnate, or rarely bipinnate ); and from " Botrypus " in being evergreen, or at least winter-green ( " Botrypus " are deciduous ) and having the non-spore-bearing part of the frond long-stalked ( short-stalked in " Botrypus " ).
• They differ from the moonworts in having at least some sterile fronds ( all fronds in " Botrychium " are spore-bearing ), and in the fronds being bi-or tri-pinnate ( " Botrychium " are single pinnate, or rarely bipinnate ); and from " Botrypus " in being evergreen, or at least winter-green ( " Botrypus " are deciduous ) and having the non-spore-bearing part of the frond long-stalked ( short-stalked in " Botrypus " ).