View source for Poaceae tribe Nardeae

{{Treatment/ID
|accepted_name=Poaceae tribe Nardeae
|accepted_authority=W.D.J. Koch
|publications=
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Nardeae
|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 Nardeae]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 62
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial; cespitose. <b>Culms</b> annual, to 60 cm; internodes hollow. <b>Sheaths</b> open, margins not fused; collars glabrous, without tufts of hair at the sides; auricles absent; ligules scarious, not ciliate, those of the upper and lower cauline leaves usually similar; pseudopetioles not present; blades filiform, venation parallel, cross venation not evident, secondary veins parallel to the midvein; cross sections non-Kranz, without arm or fusoid cells, adaxial epidermes with bicellular microhairs, not papillate. <b>Inflorescences</b> terminal spikes, 1-sided, spikelets solitary, radial to the rachises; rachises with the spikelets partially embedded. <b>Spikelets</b> not compressed, triangular in cross section, with 1 floret, floret bisexual; rachillas not prolonged beyond the floret base; disarticulation above the glumes, beneath the floret. <b>Glumes</b> absent or vestigial; lower glumes a cupular rim; upper glumes absent or vestigial; florets 5-10 mm, not compressed; calluses poorly developed, glabrous; lemmas chartaceous, 3-veined, angled over the veins, most strongly so over the lateral veins, apices entire, awned, awns terminal, not branched, lemma-awn transition gradual, not evident; paleas subequal to the lemmas, hyaline, 2-keeled; lodicules absent; anthers 3; ovaries glabrous; styles 1. <b>Caryopses</b> fusiform, style bases not persistent; hila linear, more than 1/2 as long as the caryopses; embryos about 1/6 the length of the caryopses. <b>x</b> = 13.</span><!--

-->{{Treatment/Body
|discussion=<p>There is only one genus, <i>Nardus</i>, in the Nardeae. Its relationships are obscure. Embryo characters, ligule texture, and DNA sequence data suggest it belongs in the Pooideae; the bicellular microhairs suggest a bambusoid or arundinoid affiliation. Its inclusion here in the Pooideae reflects the findings of the Grass Phylogeny Working Group (2001).</p>
|tables=
|references={{Treatment/Reference
|id=davis1993a
|text=Davis, J.I. and R.J. Sorcng. 1993. Phylogenetic structure in the grass family (Poaceae) as inferred from chloroplast DNA restriction site variation. Amer. J. Bot. 80:1444-1454
}}{{Treatment/Reference
|id=group2001a
|text=Grass Phylogeny Working Group. 2001. Phylogeny and subfamilial classification of the grasses (Poaceae). Ann. Missouri Bot. Gard. 88:373-457.
}}
}}<!--

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-->{{#Taxon:
name=Poaceae tribe Nardeae
|author=Mary E. Barkworth;
|authority=W.D.J. Koch
|rank=tribe
|parent rank=subfamily
|synonyms=
|basionyms=
|family=Poaceae
|reference=davis1993a;group2001a
|publication title=
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V24/V24_68.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Nardeae
}}<!--

-->[[Category:Treatment]][[Category:Poaceae subfam. Pooideae]]