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-d0_s0" data-properties=""><b>Plants </b>perennial;</span> <span class="statement" id="st-d0_s1" data-properties="whole_organism duration;whole_organism reproduction;whole_organism growth form">unisexual.</span> <span class="statement" id="st-d0_s2" data-properties="culm some measurement"><b>Culms </b>30-120 cm.</span> <span class="statement" id="st-d0_s3" data-properties="sheath condition"><b>Sheaths </b>closed only at the base;</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">ligules membranous;</span> <span class="statement" id="st-d0_s6" data-properties="">blades with sclerenchyma girders extending from the abaxial to adaxial surfaces.</span> <span class="statement" id="st-d0_s7" data-properties="inflorescence orientation;inflorescence shape;panicle architecture;panicle condition or size;panicle orientation;panicle shape"><b>Inflorescences </b>open or contracted panicles, usually erect to strongly ascending, not spikelike;</span> <span class="statement" id="st-d0_s8" data-properties="branch pubescence;branch architecture or pubescence or relief;branch pubescence or relief;branch some measurement">branches glabrous, smooth or somewhat scabrous, at least some branches longer than 1 cm;</span> <span class="statement" id="st-d0_s9" data-properties="pedicel some measurement;pedicel width;pedicel some measurement">pedicels sometimes longer than 3 mm, thinner than 1 mm.</span> <span class="statement" id="st-d0_s10" data-properties="plant reproduction;floret atypical quantity;floret atypical quantity;floret quantity"><b>Spikelets </b>pedicellate, somewhat dimorphic in unisexual plants, laterally compressed, with (2) 3-5 (6) florets;</span> <span class="statement" id="st-d0_s11" data-properties="spikelet architecture;spikelet growth form;spikelet shape">disarticulation above the glumes and beneath the florets.</span> <span class="statement" id="st-d0_s12" data-properties="glume size;glume height or length or size;glume width;glume pubescence;glume pubescence or relief;glume coloration;glume width;glume texture;glume arrangement;lemma arrangement"><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;</span> <span class="statement" id="st-d0_s13" data-properties="lower glume architecture">lower glumes 1-veined;</span> <span class="statement" id="st-d0_s14" data-properties="upper glume architecture">upper glumes 1-3-veined;</span> <span class="statement" id="st-d0_s15" data-properties="callus pubescence">calluses glabrous;</span> <span class="statement" id="st-d0_s16" data-properties="lemma texture;lemma pubescence;lemma pubescence;lemma pubescence;lemma pubescence;lemma architecture;vein arrangement;apex architecture or shape;apex shape;apex architecture or shape;awn some measurement">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;</span> <span class="statement" id="st-d0_s17" data-properties="palea pubescence or relief;palea texture;palea texture;lemma variability">paleas about equaling the lemmas, scabrous on the veins, scarious or membranous distally, veins terminating at the apex;</span> <span class="statement" id="st-d0_s18" data-properties="lodicule quantity;lodicule texture">lodicules 2, membranous;</span> <span class="statement" id="st-d0_s19" data-properties="anther quantity">anthers 3;</span> <span class="statement" id="st-d0_s20" data-properties="apex pubescence;apex pubescence">ovaries with glabrous or pubescent apices.</span> <span class="statement" id="st-d0_s21" data-properties="caryopse height or length or size;caryopse prominence;caryopse shape"><b>Caryopses </b>shorter than the lemmas, concealed at maturity, fusiform, usually adhering at least to the paleas;</span> <span class="statement" id="st-d0_s22" data-properties="hilum arrangement or course or shape;x chromosome quantity">hila linear, x = 7.</span><!-- -->{{Treatment/Body |distribution=Colo.;Utah;Calif.;Nebr.;Oreg.;Kans.;Mont.;Wyo.;Idaho;Nev.;S.Dak. |discussion=<p>Leucopoa 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 Festuca, but species of Leucopoa differ from those of Festuca 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 Leucopoa is more closely related to Lolium and Schedonorus than to Festuca 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://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V24/V24_631.xml |subfamily=Poaceae subfam. Pooideae |tribe=Poaceae tribe Poeae |genus=Leucopoa |anther quantity=3 |apex architecture or shape=awned;entire |apex pubescence=pubescent;glabrous |apex shape=acute |auricle presence=absent |awn some measurement=0mm;2mm |branch architecture or pubescence or relief=smooth |branch pubescence=glabrous |branch pubescence or relief=scabrous |branch some measurement=1 |callus pubescence=glabrous |caryopse height or length or size=shorter |caryopse prominence=concealed |caryopse shape=fusiform |culm some measurement=30cm;120cm |floret atypical quantity=6;2 |floret quantity=3;5 |glume arrangement=adjacent |glume coloration=hyaline |glume height or length or size=shorter |glume pubescence=glabrous |glume pubescence or relief=scabrous |glume size=subequal;unequal |glume texture=membranous |glume width=thinner;wide |hilum arrangement or course or shape=linear |inflorescence orientation=usually erect;strongly ascending |inflorescence shape=not spikelike |lemma architecture=5-veined |lemma arrangement=adjacent |lemma pubescence=hirsute;scabrous;smooth;chartaceous |lemma texture=membranous |lemma variability=equaling |ligule texture=membranous |lodicule quantity=2 |lodicule texture=membranous |lower glume architecture=1-veined |palea pubescence or relief=scabrous |palea texture=membranous;scarious |panicle architecture=open |panicle condition or size=contracted |panicle orientation=usually erect;strongly ascending |panicle shape=not spikelike |pedicel some measurement=1;3 |pedicel width=thinner |plant reproduction=unisexual |sheath condition=closed |spikelet architecture=pedicellate |spikelet growth form=dimorphic |spikelet shape=compressed |upper glume architecture=1-3-veined |vein arrangement=converging |whole_organism duration=perennial |whole_organism growth form=plant |whole_organism reproduction=unisexual |x chromosome quantity=7 }}<!-- -->[[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.