Lomariopsidaceae

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Lomariopsidaceae
Lomariopsis marginata

Lomariopsis marginata

Systematics
Empire : Plants (Plantae)
Department : Vascular plants (tracheophyta)
Ferns
Class : True ferns (Polypodiopsida)
Order : Spotted ferns (Polypodiales)
Family : Lomariopsidaceae
Scientific name
Lomariopsidaceae
Alston

The Lomariopsidaceae are a family of the real ferns (Polypodiopsida).

description

Illustration by Lomariopsis pollicina from: The fern herbs in colored illustrations, faithfully explained and described , 1840

They are perennial herbaceous plants . The rhizomes are creeping, sometimes - in hemiepiphytic species - also climbing. The leaf stalks have round vascular bundles that are arranged like a gutter. The blades are simply feathered. The leaflets have entire margins or are notched, often articulated, in some species they are eyed. The nerves end freely, are usually parallel or pinnate-shaped.

The sori are round, covered by a round to kidney-shaped indusium , or even without indusium. The sporangia can be acrostic (at the top) and the leaves can be dimorphic. The spores are bilateral, have a scar (monolet) and are differently winged and ornamented.

The basic chromosome number is x = 41, with some Lomariopsis species there are also smaller numbers.

Illustration from The flora of Africa, especially its tropical regions - Basic features of the plant distribution in Africa and the character plants of Africa , 1910 by Lomariopsis guineensis

Systematics

The Lomariopsidaceae family was established in 1956 by Arthur Hugh Garfit Alston in Taxon , Volume 5, Issue 2, page 25. The type genus is Lomariopsis Fée .

The Lomariopsidaceae family includes Smith et al. 2006 around four genera, from 2011 only three genera and since 2013 again four genera and since 2017 five genera with a total of around 50 species:

  • Cyclopeltis J.Sm. : This two to six species thrive in tropical East Asia and in the Neotropic.
  • Dracoglossum Christenh. : It was established in 2007 and contains about two types.
  • Dryopolystichum Copel. : There is only one type:
    • Dryopolystichum paheostigma (Ces.) Copel. : It thrives along rivers in lowland forests in New Guinea, in the Bismarck Archipelago and in the Solomon Islands.
  • Lomariopsis Fée , with 31 to 45 species in the tropics.
  • Thysanosoria A.Gepp , with probably only one species:

The size and structure of the family is controversial. The genus sword fern ( Nephrolepis Schott ) is again placed in a separate family Nephrolepidaceae.

supporting documents

  • Maarten JM Christenhusz, Mirkka Jones, Samuli Lehtonen: Phylogenetic Placement of the Enigmatic Fern Genus Dracoglossum. In: American Fern Journal , Volume 103, Issue 2, April 2013. doi : 10.1640 / 0002-8444-103.2.131
  • Alan R. Smith, Kathleen M. Pryer, Eric Schuettpelz, Petra Korall, Harald Schneider, Paul G. Wolf: A classification for extant ferns. In: Taxon. Volume 55, No. 3, 2006, ISSN  0040-0262 , pp. 705-731, abstract, PDF file .
@1@ 2Template: Dead Link / www.ingentaconnect.com( Page no longer available , search in web archives: A classification for extant ferns. Abstract )
@1@ 2Template: dead link / pryerlab.biology.duke.edu( Page no longer available , search in web archives: A classification for extant ferns. PDF. )

Individual evidence

  1. ↑ a b c d Cheng-Wei Chen, Michael Sundue, Li-Yaung Kuo, Wei-Chih Teng, Yao-Moan Huang: Phylogenetic analyzes place the monotypic Dryopolystichum within Lomariopsidaceae. In: PhytoKeys , Volume 78, 2017, pp. 83-107. doi : 10.3897 / phytokeys.78.12040
  2. ↑ Maarten JM Christenhusz, Xian-Chun Zhang, Harald Schneider: A linear sequence of extant families and genera of lycophytes and ferns. In: Phytotaxa , Volume 19, 2011, pp. 7-54. doi : 10.11646 / phytotaxa.19.1.2

Web links

Commons : Lomariopsidaceae  - collection of images, videos and audio files