Cyrtomium
Moon Sichelfarn ( Cyrtomium falcatum )
The sickle ferns ( Cyrtomium ) are a genus within the family of Wurmfarngewächse ( Dryopteridaceae ). It comprises about 35 species and is closely related to the shield ferns ( Polystichum ) related.
Description
The Sichelfarn species grow as perennial herbaceous plants, terrestrial or on rock. Your Stems are erect or ascending, and they do not form stolons.
There is only one type of leaves and they are evergreen. The brush handle is half to three-quarters as long as the Wedelspreite and its base is thickened. The more than three vascular bundles are arranged in an arc, and more or less round in cross section. The paper-like or somewhat leathery, oblong- lanceolate in outline Wedelspreiten are usually simply pinnate, very rarely entire, the upper pinnae usually are only slightly smaller than the lower ones. The edges of the leaflets bear notches or teeth. On the top frond thread-like scales are available and the fronds bottom is bare.
The round sori are in two or more rows between the midrib and the margin. The shield-shaped veil ( indusia ) are persistent or deciduous. The brown spores have raised folds or wings.
The basic chromosome number is x = 41
Dissemination and use
The distribution area of the genus Cyrtomium located in East Asia; Also it is in South Asia, in eastern and southern Africa, represented in Madagascar, Polynesia, Hawaii and North America. In China, 31 species have been recorded, 20 of them only there.
The following types are occasionally in Europe as ornamental plants in culture and individual come here before wild: Small Moon Sichelfarn ( Cyrtomium caryotideum ), Moon Sichelfarn ( Cyrtomium falcatum ), Ilexblättriger Moon Sichelfarn ( Cyrtomium fortunei ), Cyrtomium macrophyllum.
System
In the Checklist of Ferns and lycophytes of the World 2012 58 Cyrtomium types are listed below:
- Cyrtomium anomophyllum ( Zenker ) Fraser - Jenk. ( Syn: .. Cyrtomium aequibasis ( C.Chr ) Ching, Cyrtomium macrophyllum var microindusium ( Sa.Kurata ) K.Iwats, Cyrtomium nervosum Ching & Shing )
- Cyrtomium balansae ( H.Christ ) C.Chr.
- Cyrtomium brevicuneatum Ching & Shing
- Cyrtomium calcicola Ching Shing in
- Cyrtomium caryotideum ( wall. ex Hook et Grev. . ) Presl: History, India, China, Japan, Hawaii.
- Cyrtomium caudatum Ching & Shing
- Cyrtomium confertifolium Ching & Shing
- Cyrtomium confertiserratum JXLi, HSKung & Xiao J.Li
- Cyrtomium conforme Ching Shing in
- Cyrtomium coriaceum Ching & Shing
- Cyrtomium cuneatum Ching Shing in
- Cyrtomium devexiscapulae ( Koidz. ) Ching
- Cyrtomium dubium ( H.Karst. ) R.M.Tryon & A.F.Tryon
- Cyrtomium elongatum S.K.Wu & P.K.Lôc
- Cyrtomium falcatum ( Lf) Presl (syn.: Polystichum falcatum ( Lf) Diels ): History, India, China, Korea, Japan, Ryukyu Islands, Taiwan, Malayan Archipelago, Polynesia, South Africa; naturalized in Western Europe and the Azores.
- Cyrtomium falcipinnum Ching & Shing
- Cyrtomium fengianum Ching & Shing
- Cyrtomium fortunei J.Sm.: home is China, Korea, Japan; in the Azores and in Southern Europe rarely naturalized. Cyrtomium fortunei var atropunctatum ( Sa.Kurata ) K.lwats.
- Cyrtomium fortunei var clivicola ( Mak. ) Tagawa
- Cyrtomium fortunei var intermedium Tagawa
- Cyrtomium macrophyllum f auriculatum Akasawa & E.Yokote
No longer is one Cyrtomium:
- Polystichum lonchitoides (Christ ) Diels ( Syn: Cyrtomium lonchitoides Christ)