View source for Leucopoa ← Leucopoa 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=Leucopoa |accepted_authority=Griseb. |publications= |basionyms= |synonyms= |hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Leucopoa |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Pooideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Poeae]]</div><div class="higher-taxon"><small>genus</small>[[Leucopoa]]</div></div> |volume=Volume 24 |mention_page= |treatment_page=page 443 }}<!-- --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial; unisexual. <b>Culms</b> 30-120 cm. <b>Sheaths</b> closed only at the base; auricles absent; ligules membranous; blades with sclerenchyma girders extending from the abaxial to adaxial surfaces. <b>Inflorescences</b> open or contracted panicles, usually erect to strongly ascending, not spikelike; branches glabrous, smooth or somewhat scabrous, at least some branches longer than 1 cm; pedicels sometimes longer than 3 mm, thinner than 1 mm. <b>Spikelets</b> pedicellate, somewhat dimorphic in unisexual plants, laterally compressed, with (2)3-5(6) florets; disarticulation above the glumes and beneath the florets. <b>Glumes</b> subequal to unequal, shorter than the adjacent lemmas, more or less equally wide, glabrous, sometimes scabrous, mostly hyaline and thinner than the lemmas, membranous adjacent to the midvein, unawned; lower glumes 1-veined; upper glumes 1-3-veined; calluses glabrous; lemmas membranous to chartaceous, smooth or scabrous, sometimes hirsute, 5-veined, veins converging distally, usually extending almost to the apices, apices entire, acute, usually unawned, sometimes awned, awns to 2 mm; paleas about equaling the lemmas, scabrous on the veins, scarious or membranous distally, veins terminating at the apex; lodicules 2, membranous; anthers 3; ovaries with glabrous or pubescent apices. <b>Caryopses</b> shorter than the lemmas, concealed at maturity, fusiform, usually adhering at least to the paleas; hila linear, x = 7.</span><!-- -->{{Treatment/Body |distribution=Colo.;Utah;Calif.;Nebr.;Oreg.;Kans.;Mont.;Wyo.;Idaho;Nev.;S.Dak. |discussion=<p><i>Leucopoa</i> is a genus of about 10 species, most of which are Asian. One species is native to the Flora region. It is sometimes included in <i>Festuca</i>, but species of <i>Leucopoa</i> differ from those of <i>Festuca</i> in their dioecious habit, the hyaline glumes that are much thinner than the lemmas, and their differing ovary and caryopsis morphology. Phylogenetic studies indicate that <i>Leucopoa</i> is more closely related to <i>Lolium</i> and <i>Schedonorus</i> than to <i>Festuca</i> sensu stricto (Darbyshire and Warwick 1992; Soreng and Davis 2000; Catalan et al. 2004).</p> |tables= |references={{Treatment/Reference |id=catalan2004c |text=Catalan, P., P. Torrecilla, J.A. Lopez Rodriguez, and R.G. Olmsted. 2004. Phylogeny of the festucoid grasses of subtribe Loliinae and allies (Poeae, Pooideae) inferred from ITS and trnh-V sequences. Molec. Phylogenet. Evol. 31:517-541 }}{{Treatment/Reference |id=darbyshire1992b |text=Darbyshire, S.J. and S.I. Warwick. 1992. Phylogeny of North American Festuca (Poaceae) and related genera using chloroplast DNA restriction site variation. Canad. J. Bot. 70:2415-2429 }}{{Treatment/Reference |id=soreng2000a |text=Soreng, R.J. and J.I. Davis. 2000. Phylogenetic structure in Poaceae subfamily Pooideae as inferred from molecular and morphological characters: Misclassification versus reticulation. Pp. 61-74 in S.W.L. Jacobs and J. Everett (eds.). Grasses: Systematics and Evolution. CSIRO Publishing, Collingwood, Victoria, Australia. 408 pp. }}{{Treatment/Reference |id=swallen1941a |text=Swallen, J.R. 1941. New species, names, and combinations of grasses. Proc. Bio. Soc. Wash. 54:43-46. }} }}<!-- --><!-- -->{{#Taxon: name=Leucopoa |author=Stephen J. Darbyshire; |authority=Griseb. |rank=genus |parent rank=tribe |synonyms= |basionyms= |family=Poaceae |distribution=Colo.;Utah;Calif.;Nebr.;Oreg.;Kans.;Mont.;Wyo.;Idaho;Nev.;S.Dak. |reference=catalan2004c;darbyshire1992b;soreng2000a;swallen1941a |publication title= |publication year= |special status= |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V24/V24_631.xml |subfamily=Poaceae subfam. Pooideae |tribe=Poaceae tribe Poeae |genus=Leucopoa }}<!-- -->[[Category:Treatment]][[Category:Poaceae tribe Poeae]] 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 Leucopoa.