View source for Schismus ← Schismus 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=Schismus |accepted_authority=P. Beauv. |publications= |basionyms= |synonyms= |hierarchy=Poaceae;Poaceae subfam. Danthonioideae;Poaceae tribe Danthonieae;Schismus |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Danthonioideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Danthonieae]]</div><div class="higher-taxon"><small>genus</small>[[Schismus]]</div></div> |volume=Volume 25 |mention_page= |treatment_page=page 307 }}<!-- --><span class="statement" id="st-d0_s0" data-properties=""><b>Plants </b>annuals or short-lived perennials;</span> <span class="statement" id="st-d0_s1" data-properties="plants annual arrangement or pubescence;plants perennial duration;plants perennial arrangement or pubescence">tufted.</span> <span class="statement" id="st-d0_s2" data-properties="culm some measurement;culm growth form or orientation;culm pubescence"><b>Culms </b>2-30 cm, sometimes decumbent, glabrous.</span> <span class="statement" id="st-d0_s3" data-properties="sheath architecture;sheath height or length or size;hair some measurement"><b>Sheaths </b>open, usually shorter than the internodes, with tufts of 1.5-4 mm hairs on the margins of the collars;</span> <span class="statement" id="st-d0_s4" data-properties="auricle presence">auricles absent;</span> <span class="statement" id="st-d0_s5" data-properties="ligule texture;ligule architecture or pubescence or shape">ligules membranous, ciliate;</span> <span class="statement" id="st-d0_s6" data-properties="blade shape;blade shape;blade shape or vernation">blades flat or folded, becoming involute on drying.</span> <span class="statement" id="st-d0_s7" data-properties="inflorescence position or structure subtype;panicle density;panicle length;panicle width;panicle width"><b>Inflorescences </b>terminal, dense panicles, 1-7 cm long, 0.5-2 (3) cm wide, branches 1-2 per node;</span> <span class="statement" id="st-d0_s8" data-properties="branch quantity;branch condition;pedicel life cycle">disarticulation initially above the glumes, glumes and pedicels sometimes falling together later.</span> <span class="statement" id="st-d0_s9" data-properties="floret atypical quantity;floret atypical quantity;floret quantity"><b>Spikelets </b>with (4) 5-7 (10) florets.</span> <span class="statement" id="st-d0_s10" data-properties="glume size;glume position relational;glume position relational;glume architecture;margin coloration"><b>Glumes </b>subequal, exceeding or exceeded by the distal floret, 3-7-veined, margins hyaline;</span> <span class="statement" id="st-d0_s11" data-properties="lemma architecture;margin pubescence;margin variability;margin pubescence;intercostal region pubescence;intercostal region variability;intercostal region pubescence;margin coloration;apex shape;apex shape;sinuse shape;mucro some measurement">lemmas 7-9-veined, margins and intercostal regions usually pubescent, varying to glabrous, margins hyaline, apices bifid or merely notched, sinuses sometimes mucronate, mucros to 1.5 mm;</span> <span class="statement" id="st-d0_s12" data-properties="palea shape;palea texture;palea architecture;palea shape">paleas spatulate, membranous, 2-veined, 2-keeled;</span> <span class="statement" id="st-d0_s13" data-properties="anther quantity;anther some measurement">anthers 3, 0.2-0.5 mm.</span> <span class="statement" id="st-d0_s14" data-properties="caryopsis shape;x chromosome quantity"><b>Caryopses </b>ovoid, x = 6.</span><!-- -->{{Treatment/Body |distribution=N.Mex.;Tex.;Utah;Calif.;Ariz.;Nev. |discussion=<p>Schismus is a genus of five species that is native to Africa and Asia. Two species are established in the Flora region. In using the key and descriptions, the lowest floret in a spikelet should be examined. Succeeding florets tend to have shorter, less acute or acuminate lobes, and a shallower sinus.</p> |tables= |references={{Treatment/Reference |id=conert1974a |text=Conert, H.J. and A.M. Turpe. 1974. Revision der Gattung Schismus (Poaceae: Arundinoideae, Danthonieae). Abh. Senckenberg. Naturf. Ges. 532:1-81. }} }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Lower glumes equaling or exceeding the distal florets; lemma lobes longer than wide, acute to acuminate; paleas always shorter than the lemmas |[[Schismus arabicus|Schismus arabicus]] |-id=key-0-1 |1 |Lower glumes exceeded by the distal florets; lemma lobes as wide as or wider than long, acute to obtuse; paleas of the lower florets in the spikelets as long as or longer than the lemmas |[[Schismus barbatus|Schismus barbatus]] |} </div></div><!-- -->{{#Taxon: name=Schismus |author=Elizabeth A. Kellogg; |authority=P. Beauv. |rank=genus |parent rank=tribe |synonyms= |basionyms= |family=Poaceae |distribution=N.Mex.;Tex.;Utah;Calif.;Ariz.;Nev. |reference=conert1974a |publication title= |publication year= |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V25/V25_969.xml |subfamily=Poaceae subfam. Danthonioideae |tribe=Poaceae tribe Danthonieae |genus=Schismus |anther quantity=3 |anther some measurement=0.2mm;0.5mm |apex shape=notched;bifid |auricle presence=absent |blade shape=folded;flat |blade shape or vernation=involute |branch condition=later |branch quantity=1;2 |caryopsis shape=ovoid |culm growth form or orientation=decumbent |culm pubescence=glabrous |culm some measurement=2cm;30cm |floret atypical quantity=10;4 |floret quantity=5;7 |glume architecture=3-7-veined |glume position relational=exceeded by the distal floret;exceeding |glume size=subequal |hair some measurement=1.5mm;4mm |inflorescence position or structure subtype=terminal |intercostal region pubescence=glabrous;pubescent |intercostal region variability=varying |lemma architecture=7-9-veined |ligule architecture or pubescence or shape=ciliate |ligule texture=membranous |margin coloration=hyaline;hyaline |margin pubescence=glabrous;pubescent |margin variability=varying |mucro some measurement=0mm;1.5mm |palea architecture=2-veined |palea shape=2-keeled;spatulate |palea texture=membranous |panicle density=dense |panicle length=1cm;7cm |panicle width=0.5cm;2cm |pedicel life cycle=falling |plants annual arrangement or pubescence=tufted |plants perennial arrangement or pubescence=tufted |plants perennial duration=short-lived |sheath architecture=open |sheath height or length or size=usually shorter |sinuse shape=mucronate |x chromosome quantity=6 }}<!-- -->[[Category:Treatment]][[Category:Poaceae tribe Danthonieae]] Templates used on this page: Template:Poaceae (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/Reference (view source) Return to Schismus.