Nederlandse BookmakersSeri�se Neue CasinosUK Betting SitesNuovi Casino 2025UK Casinos Not On Gamstop

Hardy Fern Home

Adiantum resources
Descriptive
WikipediaWikipedia
Flora
Flora of AustraliaFlora of Australia
Flora of North AmericaFlora of North America
Photo
cross section: stipe vascular bundlescross section: stipe vascular bundles
Taxonomy
also distributionalso distribution
Integrated Taxonomic Information SystemIntegrated Taxonomic Information System

All Ferns
Pteridaceae
�� Adiantum
���� aleuticum
���� capillus-veneris
���� monochlamys
���� pedatum
���� venustum

�Other Genera
��� Arachniodes Aspidotis
��� Asplenium Astrolepis
��� Athyrium Blechnum
��� Cheilanthes Cryptogramma
��� Cyrtomium Cystopteris
��� Dennstaedtia Deparia
��� Diplazium Dryopteris
��� Gymnocarpium Lygodium
��� Matteuccia Onoclea
��� Oreopteris Osmunda
��� Pellaea Phegopteris
��� Pleopeltis Polypodium
��� Polystichum Pteridium
��� Pteris Pyrrosia
��� Thelypteris Woodsia
��� Woodwardia
Adiantum Linnaeus (Pteridaceae) Earlier placement: Adiantaceae, Sinopteridaceae, Parkeriaceae, Lindsaeaceae

Maidenhair fern

Etymology Adiantum is from the Greek, adiantos, meaning unwettable, referring to the water-repellent fronds.
Description Rhizome: suberect to long-creeping, absent or hairy or scaly.
Frond: deciduous, monomorphic.
Stipe: chestnut brown to dark purple, grooved above, glabrous or few scales, vascular bundles: 1 or 2.
Blade: 1-3 pinnate or pedate, lanceolate, ovate, trowel-shaped, or fan-shaped, membranaceous to papery, commonly glabrous.
segments round, fan-shaped, rhombic, or oblong with marginal teeth, lacking a midrib, veins free, forking.
Sori: sporangia, submarginal, indusium: false, inrolled margins, sporangia: yellow or yellowish brown.
Distinctive Characteristics FNA states that sporangia borne on the lower surface of the false indusium are both necessary and sufficient to define the genus. However, lacking a high-powered lens, the amateur will need additional criteria. The lack of a midrib in the ultimate segments is unique among the hardy ferns here.
Adiantum pedatum
Adiantum pedatum. False indusium. �Photo by Rod Tulloss, � Environmental Commission of the Borough of Roosevelt and the Fund for Roosevelt, Inc.
Valid XHTML 1.0���� Reports of errors and omissions appreciated: toms AT hardyfernlibrary.com (please replace the AT with @)