View source for Onoclea ← Onoclea You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. {{Treatment/ID |accepted_name=Onoclea |accepted_authority=Linnaeus |publications={{Treatment/Publication |title=Sp. Pl. |place=2: 1062. 1753; Gen. Pl. ed. 5, 484, 1754 |year=1754 }} |common_names=Sensitive fern |basionyms= |synonyms= |hierarchy=Dryopteridaceae;Onoclea |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Dryopteridaceae]]</div><div class="higher-taxon"><small>genus</small>[[Onoclea]]</div></div> |etymology=Greek onos, vessel, and kleiein, to close, in reference to the sori, which are enclosed by the revolute fertile leaf margins |volume=Volume 2 |mention_page= |treatment_page= }}<!-- --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>terrestrial. <b>Stems</b> creeping, stolons absent. <b>Leaves</b> strongly dimorphic, fertile leaves usually shorter, greatly contracted, persistent 2–3 years, sterile leaves dying back in winter. <b>Petiole</b> of sterile leaf ca. 1–1.5 times length of blade, petiole of fertile leaf 2–6 times length of blade, bases swollen and persisting as trophopods over winter; vascular bundles 2, lateral, lunate in cross section. <b>Blade</b> of sterile leaf deltate, pinnatifid to pinnate-pinnatifid proximally, reduced and shallowly pinnatifid distally, herbaceous to papery, blade of fertile leaf linear-oblong, 2-pinnate, leathery. <b>Pinnae</b> not articulate to rachis, segment margins of sterile blades entire to sinuate or shallowly lobed, margins of fertile pinnules strongly revolute and forming hardened beadlike structures; proximal pinnae largest or nearly so, sessile or adnate, equilateral; costae adaxially flat; indument on both sides of linear to lanceolate scales and/or multicellular hairs on rachis and costae. <b>Veins</b> reticulate with areoles lacking included veinlets in sterile leaves, veins free in fertile leaves. <b>Sori</b> covered by strongly revolute margins of pinnae, ± round; indusia vestigial, triangular, persistent but not easily seen in mature leaves. <b>Spores</b> greenish, with a few low folds and numerous, minute, echinate-cristate elements. <b>x</b> = 37.</span><!-- -->{{Treatment/Body |distribution=Temperate regions in Northern Hemisphere;Asia. |discussion=<p>Onoclea is one of several genera known to store starch grains in long-persistent petiole bases (trophopods) (W. H. Wagner Jr. and D. M. Johnson 1983).</p><!-- --><p>Species 1 (1 in the flora).</p> |tables= |references= }}<!-- --><!-- -->{{#Taxon: name=Onoclea |author=David M. Johnson |authority=Linnaeus |rank=genus |parent rank=family |synonyms= |basionyms= |family=Dryopteridaceae |distribution=Temperate regions in Northern Hemisphere;Asia. |reference=None |publication title=Sp. Pl. |publication year=1754 |special status= |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_636.xml |genus=Onoclea }}<!-- -->[[Category:Treatment]][[Category:Dryopteridaceae]] Templates used on this page: Template:Dryopteridaceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Template:Treatment/Publication (view source) Return to Onoclea.