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Fern sports are plants that show marked change from the normal type or parent stock as a result of mutation. The term Morphotype is also used for any of a group of different types of individuals of the same species in a population. Fern fronds in sports are typically altered in several ways, such as the frond apex divided and pinnae similarly duplicated.〔(Plants Sports ) Retrieved : 2011-07-22〕 ==Occurrence== Soft Shield Fern ''Polystichum setiferum'', Lady Fern ''Athyrium filix-femina''〔(Lady Fern sports ) Retrieved : 2011-07-23〕 and Hart's Tongue Fern ''Asplenium scolopendrium'' are known to have around three hundred varieties or sports.〔(Peter D. A. Boyd's Pteridomania ) Retrieved : 2011-07-22〕 Scaly Male Fern Dryopteris affinis and Male Fern Dryopteris filix-mas have a number of commercially available and naturally occurring sports or subspecies. Examples are ''D. affinis polydactyla Dadds'', ''A. filix-femina plumosum'', ''A. filix-femina corymbiferum'', and ''D. filix-mas Barnesii'' 〔(Hardy Ferns ) Retrieved : 2011-07-23〕 ;Lady Fern (''Athyrium filix-femina'') File:Lady Fern frond - normal appearance.jpg|Normal Lady Fern frond appearance. File:Sport - Lady Fern frond tip.jpg|Lady Fern sport. File:Sport - Lady Fern pinna.jpg|Lady Fern pinna showing abnormal tips. File:Lady fern sport - underside of frond.jpg|Lady Fern sport showing lower surface with normal sori. File:Chirosia betuleti, Knotting Gall on the fern Dryopteris dilatata,.jpg|A Knotting gall on Broad buckler fern. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fern sports」の詳細全文を読む スポンサード リンク
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