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-d0_s0" data-properties="whole_organism growth form or habitat;whole_organism growth form"><b>Plants </b>terrestrial.</span> <span class="statement" id="st-d0_s1" data-properties="stem growth form or orientation;stolon presence"><b>Stems </b>creeping, stolons absent.</span> <span class="statement" id="st-d0_s2" data-properties="leaf growth form;leaf reproduction;leaf height or length or size;leaf condition or size;leaf duration;leaf quantity;leaf reproduction;leaf condition"><b>Leaves </b>strongly dimorphic, fertile leaves usually shorter, greatly contracted, persistent 2–3 years, sterile leaves dying back in winter.</span> <span class="statement" id="st-d0_s3" data-properties="petiole length;leaf reproduction;petiole length;leaf reproduction;base shape;base duration"><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;</span> <span class="statement" id="st-d0_s4" data-properties="vascular-bundle quantity;vascular-bundle position;vascular-bundle shape">vascular-bundles 2, lateral, lunate in cross-section.</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;blade shape;blade size;blade shape;blade texture;leaf reproduction;blade shape;blade architecture or shape;blade texture;leaf reproduction"><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.</span> <span class="statement" id="st-d0_s6" data-properties="pinna architecture;segment margin shape;blade reproduction;margin shape or vernation;pinnule reproduction;structure texture;structure shape"><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;</span> <span class="statement" id="st-d0_s7" data-properties="proximal pinna size;proximal pinna size;proximal pinna architecture;proximal pinna fusion;proximal pinna architecture or shape">proximal pinnae largest or nearly so, sessile or adnate, equilateral;</span> <span class="statement" id="st-d0_s8" data-properties="costa prominence or shape">costae adaxially flat;</span> <span class="statement" id="st-d0_s9" data-properties="scale shape;hair architecture">indument on both sides of linear to lanceolate scales and/or multicellular hairs on rachis and costae.</span> <span class="statement" id="st-d0_s10" data-properties="vein architecture or coloration or relief;areole quantity;leaf reproduction;vein fusion;leaf reproduction"><b>Veins </b>reticulate with areoles lacking included veinlets in sterile leaves, veins free in fertile leaves.</span> <span class="statement" id="st-d0_s11" data-properties="sorus shape;margin shape or vernation"><b>Sori </b>covered by strongly revolute margins of pinnae, ± round;</span> <span class="statement" id="st-d0_s12" data-properties="indusium prominence;indusium shape;indusium duration;leaf life cycle">indusia vestigial, triangular, persistent but not easily seen in mature leaves.</span> <span class="statement" id="st-d0_s13" data-properties="fold quantity;fold position;element quantity;element size;element shape"><b>Spores </b>greenish, with a few low folds and numerous, minute, echinate-cristate elements.</span> <span class="statement" id="st-d0_s14" data-properties="spore coloration;x chromosome quantity">x = 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://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V2/V2_636.xml |genus=Onoclea |areole quantity=lacking |base duration=persisting |base shape=swollen |blade architecture or shape=2-pinnate |blade reproduction=sterile |blade shape=linear-oblong;pinnatifid;pinnatifid;pinnate-pinnatifid |blade size=reduced |blade texture=leathery;herbaceous;papery |costa prominence or shape=flat |element quantity=numerous |element shape=echinate-cristate |element size=minute |fold position=low |fold quantity=few |hair architecture=multicellular |indusium duration=persistent |indusium prominence=vestigial |indusium shape=triangular |leaf condition=dying |leaf condition or size=contracted |leaf duration=persistent |leaf growth form=dimorphic |leaf height or length or size=shorter |leaf life cycle=mature |leaf quantity=2;3 |leaf reproduction=fertile;sterile;fertile;sterile;fertile;sterile;sterile;fertile |margin shape or vernation=revolute;revolute |petiole length=2-6 times length of blade;1-1.5 times length of blade |pinna architecture=not articulate |pinnule reproduction=fertile |proximal pinna architecture=sessile |proximal pinna architecture or shape=equilateral |proximal pinna fusion=adnate |proximal pinna size=nearly;largest |scale shape=linear;lanceolate |segment margin shape=entire;sinuate or shallowly lobed |sorus shape=round |spore coloration=greenish |stem growth form or orientation=creeping |stolon presence=absent |structure shape=beadlike |structure texture=hardened |vascular-bundle position=lateral |vascular-bundle quantity=2 |vascular-bundle shape=lunate |vein architecture or coloration or relief=reticulate |vein fusion=free |whole_organism growth form=plant |whole_organism growth form or habitat=terrestrial |x chromosome quantity=37 }}<!-- -->[[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.