Hemidictyum is a genus of ferns with a single species, Hemidictyum marginatum, commonly known as the marginated half net fern.[3] In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is the only genus in the family Hemidictyaceae.[4] Alternatively, the family, along with Aspleniaceae sensu stricto, may be placed in a much more broadly defined family Aspleniaceae as the subfamily Asplenioideae.[5]
The name Hemidictyum was derived from the terms hemi (half) and diktyon (net), from the veins being netted only half-way across the pinnules.[6]
Hemidictyaceae is considered to be a sister family to Aspleniaceae s.l., believed to have diverged during the Cretaceous period.[7][8] The following cladogram for the suborder Aspleniineae (as eupolypods II), based on Lehtonen (2011),[9] and Rothfels & al. (2012),[10] shows a likely phylogenetic relationship between the Hemidictyaceae and the other families of the clade.
Aspleniineae (eupolypods II)There is currently only one accepted Hemidictyum species, Hemidictyum marginatum.[2]
Hemidictyum is a native neotropical fern, found in Mexico, the Caribbean, Costa Rica, Guatemala, Honduras, Nicaragua, Panama, French Guiana, Suriname, Brazil, Venezuela, Puerto Rico, Bolivia, Colombia, Ecuador, and Peru.[3][11]
Hemidictyum is a genus of ferns with a single species, Hemidictyum marginatum, commonly known as the marginated half net fern. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is the only genus in the family Hemidictyaceae. Alternatively, the family, along with Aspleniaceae sensu stricto, may be placed in a much more broadly defined family Aspleniaceae as the subfamily Asplenioideae.
Hemidictyum is een monotypisch geslacht van varens uit de familie Hemidictyaceae.
De enige recente soort in dit geslacht, Hemidictyum marginatum, is inheems in tropisch Midden- en Zuid-Amerika.
De botanische naam Hemidictyum is een samenstelling van Oudgrieks ἡμι-, hemi- (half-) en δίκτυον, diktuon (net).
Aangezien Hemidictyum een monotypisch geslacht is, wordt het volledig beschreven door zijn enige recente vertegenwoordiger, Hemidictyum marginatum (L.) C.Presl (1836). Zie aldaar.
Bronnen, noten en/of referentiesHemidictyum is een monotypisch geslacht van varens uit de familie Hemidictyaceae.
De enige recente soort in dit geslacht, Hemidictyum marginatum, is inheems in tropisch Midden- en Zuid-Amerika.
헤미딕티움속(Diplaziopsidaceae)은 양치식물강 고사리목 분류군에 속하는 양치류 속의 하나이다.[1] 헤미딕티움과(Hemidictyaceae)의 유일속이다. 헤미딕티움과는 꼬리고사리과의 자매 과로 간주되며, 백악기에 갈라진 것으로 추정하고 있다.[2][3] 헤미딕티움(Hemidictyum)이라는 학명은 "중간"(half) 또는 "절반"이라는 의미의 "헤미"(hemi)와 "그물"이라는 의미의 "딕티온"(diktyon)의 합성어에서 유래했다.[4]
헤미딕티움속은 신열대구에서 자생하는 양치류로 멕시코와 카리브해, 코스타리카, 과테말라, 온두라스, 니카라과, 파나마, 프랑스령 기아나, 수리남, 브라질, 베네수엘라, 푸에르토리코, 볼리비아, 콜롬비아, 에콰도르 그리고 페루 등에서 발견된다.[5]
현재, 헤미딕티움속(Hemidictyum)으로 공식 인정되는 종은 헤미딕티움 마르기나툼(H. marginatum)뿐이다. 나머지는 이명으로 간주하거나 꼬리고사리속(Asplenium)으로 분류한다.[6]
2016년 꼬리고사리아목의 계통 분류는 다음과 같다.[7]
꼬리고사리아목헤미딕티움속(Diplaziopsidaceae)은 양치식물강 고사리목 분류군에 속하는 양치류 속의 하나이다. 헤미딕티움과(Hemidictyaceae)의 유일속이다. 헤미딕티움과는 꼬리고사리과의 자매 과로 간주되며, 백악기에 갈라진 것으로 추정하고 있다. 헤미딕티움(Hemidictyum)이라는 학명은 "중간"(half) 또는 "절반"이라는 의미의 "헤미"(hemi)와 "그물"이라는 의미의 "딕티온"(diktyon)의 합성어에서 유래했다.
