View source for Dionaea ← Dionaea 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=Dionaea |accepted_authority=Solander ex J. Ellis |publications={{Treatment/Publication |title=St. James’s Chron. Brit. Eve. Post |place=1172: [4]. 1768 |year=1768 }} |common_names=Venus’s-flytrap;flytrap;meadow-clam;tippitiwitchet |basionyms= |synonyms= |hierarchy=Droseraceae;Dionaea |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Droseraceae]]</div><div class="higher-taxon"><small>genus</small>[[Dionaea]]</div></div> |etymology=Greek Dione, mother of Aphrodite, Greek goddess of love and beauty whose Roman name was Venus |volume=Volume 6 |mention_page=page 418, 420 |treatment_page=page 419 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism duration;whole_organism growth form"><b>Plants </b>perennial, evergreen;</span> <span class="statement" id="st-d0_s1" data-properties="rhizome architecture or shape;petiole base texture">scapes from bulblike rhizomes encased in fleshy petiole bases;</span> <span class="statement" id="st-d0_s2" data-properties="leaf duration;bud duration">leaves persisting, not forming overwintering buds (hibernaculae).</span> <span class="statement" id="st-d0_s3" data-properties="root derivation;root coloration;root architecture"><b>Roots </b>adventitious, white, unbranched.</span> <span class="statement" id="st-d0_s4" data-properties="stipule presence"><b>Leaves:</b> stipules absent;</span> <span class="statement" id="st-d0_s5" data-properties="petiole architecture">petiole winged;</span> <span class="statement" id="st-d0_s6" data-properties="blade coloration;blade coloration;lobe quantity;lobe shape;bristle fragility or size">blade greenish or bright red adaxially, of 2 subreniform, hinged lobes, margins with stout bristles (hinged along midrib, adaxial surfaces with 3 trigger hairs causing lobes to snap shut on prey when properly stimulated).</span> <span class="statement" id="st-d0_s7" data-properties="cyme shape"><b>Inflorescences </b>umbellike cymes.</span> <span class="statement" id="st-d0_s8" data-properties="petal condition;petal coloration"><b>Flowers:</b> petals marcescent, white;</span> <span class="statement" id="st-d0_s9" data-properties="stamen atypical quantity;stamen atypical quantity;stamen quantity;stamen fusion">stamens (10–) 15 (–20), distinct;</span> <span class="statement" id="st-d0_s10" data-properties="gynoecium architecture">gynoecium 5-carpellate;</span> <span class="statement" id="st-d0_s11" data-properties="style quantity;style shape">style 1, not divided;</span> <span class="statement" id="st-d0_s12" data-properties="stigma shape">stigma plumose.</span> <span class="statement" id="st-d0_s13" data-properties="capsule shape"><b>Capsules </b>ovoid, opening irregularly.</span> <span class="statement" id="st-d0_s14" data-properties=""><b>Seeds </b>(20–) 25 (–30).</span> <span class="statement" id="st-d0_s15" data-properties="seed atypical quantity;seed atypical quantity;seed quantity;x chromosome quantity">x = 16.</span><!-- -->{{Treatment/Body |distribution=United States;elsewhere |discussion=<p>Species 1.</p><!-- --><p>Dionaea has been placed in its own family, Dionaeaceae Rafinesque. This is not without merit, as virtually all of its diagnostic features are different from those of Drosera. Molecular analysis places it in the Droseraceae in the narrow sense (K. M. Cameron et al. 2002; S. E. Williams et al. 1994; F. Rivadavia et al. 2003).</p> |tables= |references={{Treatment/Reference |id=hodick1988a |text=Hodick, D. and A. Sievers. 1988. On the mechanism of trap closure of Venus flytrap (Dionaea muscipula Ellis). Planta 179: 32–42. }}{{Treatment/Reference |id=roberts1958a |text=Roberts, P. R. and H. J. Oosting. 1958. Responses of Venus fly trap (Dionaea muscipula) to factors involved in its endemism. Ecol. Monogr. 28: 193–218. }}{{Treatment/Reference |id=williams1982a |text=Williams, S. E. and A. B. Bennett. 1982. Leaf closure in the Venus flytrap: An acid growth response. Science, ser. 2, 218: 1120–1122. }} }}<!-- --><!-- -->{{#Taxon: name=Dionaea |authority=Solander ex J. Ellis |rank=genus |parent rank=family |synonyms= |basionyms= |family=Droseraceae |distribution=United States;elsewhere |reference=hodick1988a;roberts1958a;williams1982a |publication title=St. James’s Chron. Brit. Eve. Post |publication year=1768 |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V6/V6_793.xml |genus=Dionaea |blade coloration=bright red;greenish |bristle fragility or size=stout |bud duration=overwintering |capsule shape=ovoid |cyme shape=umbel-like |gynoecium architecture=5-carpellate |leaf duration=persisting |lobe quantity=2 |lobe shape=subreniform |petal coloration=white |petal condition=marcescent |petiole architecture=winged |petiole base texture=fleshy |rhizome architecture or shape=bulblike |root architecture=unbranched |root coloration=white |root derivation=adventitious |seed atypical quantity=25;30 |seed quantity=25 |stamen atypical quantity=15;20 |stamen fusion=distinct |stamen quantity=15 |stigma shape=plumose |stipule presence=absent |style quantity=1 |style shape=not divided |whole_organism duration=evergreen;perennial |whole_organism growth form=plant |x chromosome quantity=16 }}<!-- -->[[Category:Treatment]][[Category:Droseraceae]] Templates used on this page: Template:Droseraceae (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) Template:Treatment/Reference (view source) Return to Dionaea.